diff --git a/lib/globals.dart b/lib/globals.dart
new file mode 100644
index 0000000..58229d9
--- /dev/null
+++ b/lib/globals.dart
@@ -0,0 +1,7 @@
+library app.globals;
+
+import 'package:smoke_cess_app/mock/db_mock.dart';
+import 'package:smoke_cess_app/services/database_service.dart';
+
+DatabaseService databaseService = DatabaseMock(); 
+//  DatabaseService databaseService = DatabaseService.instance;
diff --git a/lib/main.dart b/lib/main.dart
index bf9da73..a1cf5ac 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,14 +1,16 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 import 'package:smoke_cess_app/pages/main_page.dart';
-import 'package:smoke_cess_app/service/database_service.dart';
-import 'package:smoke_cess_app/service/notification_service.dart';
+import 'package:smoke_cess_app/services/notification_service.dart';
 import 'package:timezone/data/latest.dart' as tz;
+import 'globals.dart' as globals;
+import 'providers/settings_provider.dart';
 
 void main() {
   // to ensure all the widgets are initialized.
   WidgetsFlutterBinding.ensureInitialized();
   //init database
-  DatabaseService.instance;
+  globals.databaseService;
   tz.initializeTimeZones();
   NotificationService().initNotification();
   runApp(const MyApp());
@@ -21,6 +23,11 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(title: _title, home: MyHomePage());
+    return MaterialApp(
+        title: _title,
+        home: ChangeNotifierProvider(
+          create: (context) => SettingsProvider(),
+          child: const MyHomePage(),
+        ));
   }
 }
diff --git a/lib/mock/db_mock.dart b/lib/mock/db_mock.dart
index 1a92cf9..e7c60c3 100644
--- a/lib/mock/db_mock.dart
+++ b/lib/mock/db_mock.dart
@@ -1,23 +1,56 @@
 import 'package:smoke_cess_app/interface/db_record.dart';
 import 'package:smoke_cess_app/models/mood.dart';
+import 'package:smoke_cess_app/models/relapse.dart';
 import 'package:smoke_cess_app/models/sleep.dart';
+import 'package:smoke_cess_app/services/database_service.dart';
+import 'package:sqflite_common/sqlite_api.dart';
 
-class DatabaseMock {
-  final List<DatabaseRecord> _moodRecords = [];
-  final List<DatabaseRecord> _sleepRecords = [];
+class DatabaseMock implements DatabaseService {
+  static final DatabaseMock _databaseMock = DatabaseMock._internal();
+  factory DatabaseMock() {
+    return _databaseMock;
+  }
+  DatabaseMock._internal();
+
+  final List<Mood> _moodRecords = [];
+  final List<Sleep> _sleepRecords = [];
+  final List<Relapse> _relapseRecords = [];
   final List<DatabaseRecord> _workoutRecords = [];
 
-  void saveRecord(DatabaseRecord record) {
-    if (record is Mood) {
-      _moodRecords.add(record);
-    } else if (record is Sleep) {
-      _sleepRecords.add(record);
-    } else {
-      _workoutRecords.add(record);
-    }
+  @override
+  Future<int> addMood(Mood mood) {
+    _moodRecords.add(mood);
+    return Future.value(1);
   }
 
-  List<DatabaseRecord> getMoodRecords() => _moodRecords;
-  List<DatabaseRecord> getSleepRecords() => _sleepRecords;
-  List<DatabaseRecord> getWorkoutRecords() => _workoutRecords;
+  @override
+  Future<int> addSleep(Sleep sleep) {
+    _sleepRecords.add(sleep);
+    return Future.value(1);
+  }
+
+  @override
+  Future<int> addRelapse(Relapse relapse) {
+    _relapseRecords.add(relapse);
+    return Future.value(1);
+  }
+
+  @override
+  // TODO: implement database
+  Future<Database> get database => DatabaseService.instance.database;
+
+  @override
+  Future<List<Mood>> getMoodRecords() {
+    return Future.value(_moodRecords);
+  }
+
+  @override
+  Future<List<Sleep>> getSleepRecords() {
+    return Future.value(_sleepRecords);
+  }
+
+  @override
+  Future<List<Relapse>> getRelapseRecords() {
+    return Future.value(_relapseRecords);
+  }
 }
diff --git a/lib/models/relapse.dart b/lib/models/relapse.dart
new file mode 100644
index 0000000..0271d31
--- /dev/null
+++ b/lib/models/relapse.dart
@@ -0,0 +1,29 @@
+import 'package:smoke_cess_app/interface/db_record.dart';
+
+class Relapse implements DatabaseRecord {
+  final String _category;
+  final String _comment;
+  final DateTime _date;
+
+  Relapse(this._category, this._comment, this._date);
+
+  @override
+  factory Relapse.fromDatabase(Map<String, dynamic> map) {
+    DateTime date = DateTime.parse(map['date']);
+    return Relapse(map['category'], map['comment'], date);
+  }
+
+  @override
+  String toCSV() {
+    return "${_date.toIso8601String()}, $_category, $_comment";
+  }
+
+  @override
+  Map<String, dynamic> toMap() {
+    return {
+      'category': _category,
+      'comment': _comment,
+      'date': _date.toIso8601String(),
+    };
+  }
+}
diff --git a/lib/models/settings.dart b/lib/models/settings.dart
index 6691e91..83fad43 100644
--- a/lib/models/settings.dart
+++ b/lib/models/settings.dart
@@ -1,10 +1,10 @@
-import 'package:smoke_cess_app/service/json_service.dart';
+import 'package:smoke_cess_app/services/json_service.dart';
 
 class Settings {
   final int group;
   final List<String>? relapseCategories;
-  final QueryConfig moodQuery;
-  final QueryConfig sleepQuery;
+  final QueryConfig? moodQuery;
+  final QueryConfig? sleepQuery;
   final TimeConfig? chessTime;
 
   Settings(this.group, this.relapseCategories, this.moodQuery, this.sleepQuery,
@@ -21,8 +21,8 @@ class Settings {
 }
 
 class QueryConfig {
-  final int hours;
-  final int minutes;
+  final int? hours;
+  final int? minutes;
   final List<String>? days;
 
   QueryConfig(this.hours, this.minutes, this.days);
@@ -34,8 +34,8 @@ class QueryConfig {
 }
 
 class TimeConfig {
-  final int hours;
-  final int minutes;
+  final int? hours;
+  final int? minutes;
 
   TimeConfig(this.hours, this.minutes);
 
diff --git a/lib/models/sleep.dart b/lib/models/sleep.dart
index d5335a8..3474b03 100644
--- a/lib/models/sleep.dart
+++ b/lib/models/sleep.dart
@@ -5,25 +5,25 @@ class Sleep implements DatabaseRecord {
   final int _sleepQualityValue;
   final String _comment;
   final DateTime _date;
-  final TimeOfDay _sleepedAt;
+  final TimeOfDay _sleptAt;
   final TimeOfDay _wokeUpAt;
 
-  Sleep(this._sleepQualityValue, this._comment, this._date, this._sleepedAt,
+  Sleep(this._sleepQualityValue, this._comment, this._date, this._sleptAt,
       this._wokeUpAt);
 
   @override
   factory Sleep.fromDatabase(Map<String, dynamic> map) {
     DateTime date = DateTime.parse(map['date']);
-    TimeOfDay sleepedAt =
-        TimeOfDay(hour: map['sleepedAtHour'], minute: map['sleepedAtMinute']);
+    TimeOfDay sleptAt =
+        TimeOfDay(hour: map['sleptAtHour'], minute: map['sleptAtMinute']);
     TimeOfDay wokeUpAt =
         TimeOfDay(hour: map['wokeUpAtHour'], minute: map['wokeUpAtMinute']);
-    return Sleep(map['value'], map['comment'], date, sleepedAt, wokeUpAt);
+    return Sleep(map['value'], map['comment'], date, sleptAt, wokeUpAt);
   }
 
   @override
   String toCSV() {
-    return "${_date.toIso8601String()}, $_sleepQualityValue, ${_sleepedAt.hour}:${_sleepedAt.minute}, ${_wokeUpAt.hour}:${_wokeUpAt.minute}, $_comment";
+    return "${_date.toIso8601String()}, $_sleepQualityValue, ${_sleptAt.hour}:${_sleptAt.minute}, ${_wokeUpAt.hour}:${_wokeUpAt.minute}, $_comment";
   }
 
   @override
@@ -32,8 +32,8 @@ class Sleep implements DatabaseRecord {
       'value': _sleepQualityValue,
       'comment': _comment,
       'date': _date.toIso8601String(),
-      'sleepedAtHour': _sleepedAt.hour,
-      'sleepedAtMinute': _sleepedAt.minute,
+      'sleptAtHour': _sleptAt.hour,
+      'sleptAtMinute': _sleptAt.minute,
       'wokeUpAtHour': _wokeUpAt.hour,
       'wokeUpAtMinute': _wokeUpAt.minute,
     };
diff --git a/lib/pages/interval_page.dart b/lib/pages/interval_page.dart
index 619d969..f6d2fcd 100644
--- a/lib/pages/interval_page.dart
+++ b/lib/pages/interval_page.dart
@@ -1,7 +1,12 @@
 import 'dart:async';
 import 'package:audioplayers/audioplayers.dart';
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/providers/timer_provider.dart';
 import 'package:smoke_cess_app/widgets/popup_for_start_and_stop.dart';
+import 'package:smoke_cess_app/widgets/timer_widget.dart';
+
+import '../providers/input_provider.dart';
 
 class IntervalTimerPage extends StatefulWidget {
   const IntervalTimerPage({Key? key}) : super(key: key);
@@ -44,9 +49,11 @@ class _IntervalTimerPageState extends State<IntervalTimerPage> {
     await showDialog(
       context: context,
       builder: (BuildContext context) {
-        return const TimerStartStopPopup(
-          title: 'Motivation vor dem Training',
-        );
+        return ChangeNotifierProvider(
+            create: (context) => InputProvider(),
+            child: const TimerStartStopPopup(
+              title: 'Motivation vor dem Training',
+            ));
       },
     );
     _isPaused = false;
@@ -161,51 +168,58 @@ class _IntervalTimerPageState extends State<IntervalTimerPage> {
 
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-        body: Center(
+    return ChangeNotifierProvider(
+        create: (context) => TimerProvider(),
+        child: TimerWidget(
+          duration: Duration(seconds: 5),
+        ));
+    return Center(
+        child: ChangeNotifierProvider(
+            create: (context) => InputProvider(),
             child: Column(
-      mainAxisAlignment: MainAxisAlignment.center,
-      children: [
-        Text(
-          _currentBlock == 0
-              ? 'Warm-up'
-              : _currentBlock % 2 == 1
-                  ? 'High Intensity'
-                  : _currentBlock < _numHighIntensityBlocks * 2
-                      ? 'Low Intensity'
-                      : 'Cool-down',
-          style: const TextStyle(fontSize: 32.0),
-        ),
-        const SizedBox(height: 16.0),
-        Text(
-          _formatDuration(_currentDuration),
-          style: const TextStyle(fontSize: 80.0),
-        ),
-        const SizedBox(height: 32.0),
-        Text(
-          'Total: ${_formatTotalDuration(_totalDuration)}',
-          style: const TextStyle(fontSize: 24.0),
-        ),
-        const SizedBox(height: 32.0),
-        Row(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            IconButton(
-              icon: Icon(
-                  _isPaused ? Icons.play_arrow_rounded : Icons.stop_rounded),
-              iconSize: 48.0,
-              onPressed: () {
-                if (_isPaused) {
-                  _startTimer();
-                } else {
-                  _resetTimer();
-                }
-              },
-            ),
-            // ),
-          ],
-        ),
-      ],
-    )));
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Text(
+                  _currentBlock == 0
+                      ? 'Warm-up'
+                      : _currentBlock % 2 == 1
+                          ? 'High Intensity'
+                          : _currentBlock < _numHighIntensityBlocks * 2
+                              ? 'Low Intensity'
+                              : 'Cool-down',
+                  style: const TextStyle(fontSize: 32.0),
+                ),
+                const SizedBox(height: 16.0),
+                Text(
+                  _formatDuration(_currentDuration),
+                  style: const TextStyle(fontSize: 80.0),
+                ),
+                const SizedBox(height: 32.0),
+                Text(
+                  'Total: ${_formatTotalDuration(_totalDuration)}',
+                  style: const TextStyle(fontSize: 24.0),
+                ),
+                const SizedBox(height: 32.0),
+                Row(
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  children: [
+                    IconButton(
+                      icon: Icon(_isPaused
+                          ? Icons.play_arrow_rounded
+                          : Icons.stop_rounded),
+                      iconSize: 48.0,
+                      onPressed: () {
+                        if (_isPaused) {
+                          _startTimer();
+                        } else {
+                          _resetTimer();
+                        }
+                      },
+                    ),
+                    // ),
+                  ],
+                ),
+              ],
+            )));
   }
 }
diff --git a/lib/pages/main_page.dart b/lib/pages/main_page.dart
index ca3c95d..b45b479 100644
--- a/lib/pages/main_page.dart
+++ b/lib/pages/main_page.dart
@@ -1,11 +1,8 @@
+import 'package:awesome_dialog/awesome_dialog.dart';
 import 'package:flutter/material.dart';
-import 'package:smoke_cess_app/pages/mood_page.dart';
-import 'package:smoke_cess_app/pages/relapse_page.dart';
-import 'package:smoke_cess_app/pages/scanner_page.dart';
-import 'package:smoke_cess_app/pages/sleep_page.dart';
-import 'package:smoke_cess_app/pages/interval_page.dart';
-import 'package:smoke_cess_app/service/settings_service.dart';
-import 'package:smoke_cess_app/widgets/missing_config_popup.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/services/pages_service.dart';
+import 'package:smoke_cess_app/providers/settings_provider.dart';
 
 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key});
@@ -16,73 +13,42 @@ class MyHomePage extends StatefulWidget {
 
 class MyHomePageState extends State<MyHomePage> {
   int _selectedIndex = 4;
-  int? _gruppe;
+  bool _isConfigured = false;
 
-  final List<String> _titles = [
-    'Stimmung',
-    'Schlaf',
-    'Timer',
-    'Rückfall',
-    'Scanner'
-  ];
-  static const List<Widget> _widgetOptions = <Widget>[
-    MoodPage(),
-    SleepPage(),
-    IntervalTimerPage(),
-    RelapsePage(),
-    ScannerPage(),
-  ];
-
-  Future<void> _onItemTapped(int index) async {
-    _gruppe = await getGroup();
-    bool isConfigured = _gruppe != null;
+  void _onItemTapped(int index) {
     setState(() {
-      isConfigured
+      _isConfigured
           ? _selectedIndex = index
-          : showDialog(
+          : AwesomeDialog(
               context: context,
-              builder: (BuildContext context) {
-                return const MissingConfigPopup(
-                  title: 'Fehlende Konfiguration',
-                  text: 'Bitte QR Code Scannen!',
-                );
-              });
+              dialogType: DialogType.info,
+              title: 'Fehlende Konfiguration',
+              desc: 'Bitte QR Code Scannen!',
+            ).show();
     });
   }
 
   @override
   Widget build(BuildContext context) {
+    var settingsModel = context.watch<SettingsProvider>();
+    var group = settingsModel.settings?.group;
+    _isConfigured = settingsModel.initialized;
     return Scaffold(
       appBar: AppBar(
           title: Text(
-              '${_titles[_selectedIndex]} ${_gruppe != null ? "Gruppe $_gruppe" : ""}')),
-      body: _widgetOptions.elementAt(_selectedIndex),
+              '${pages.keys.elementAt(_selectedIndex)} ${_isConfigured ? "Gruppe $group" : ""}')),
+      body: Center(
+          child: SingleChildScrollView(
+              child: pages.values.elementAt(_selectedIndex)['page'])),
       bottomNavigationBar: NavigationBar(
-        onDestinationSelected: _onItemTapped,
-        selectedIndex: _selectedIndex,
-        destinations: const <Widget>[
-          NavigationDestination(
-              icon: Icon(Icons.mood_outlined, color: Colors.black),
-              label: 'Stimmung'),
-          NavigationDestination(
-              icon: Icon(Icons.bedtime_outlined, color: Colors.black),
-              label: 'Schlaf'),
-          NavigationDestination(
-              icon: Icon(
-                Icons.timer_outlined,
-                color: Colors.black,
-              ),
-              label: 'Timer'),
-          NavigationDestination(
-              icon: Icon(Icons.smoke_free_outlined, color: Colors.black),
-              label: 'Rückfall'),
-          NavigationDestination(
-              icon: Icon(Icons.camera_alt_outlined, color: Colors.black),
-              label: 'Settings'),
-        ],
-
-        //onTap: _onItemTapped,
-      ),
+          onDestinationSelected: _onItemTapped,
+          selectedIndex: _selectedIndex,
+          destinations: pages.keys.map((key) {
+            return NavigationDestination(
+                icon: pages[key]!['icon'] ??
+                    const Icon(Icons.disabled_by_default),
+                label: key);
+          }).toList()),
     );
   }
 }
diff --git a/lib/pages/mood_page.dart b/lib/pages/mood_page.dart
index bd1b36b..546c6f1 100644
--- a/lib/pages/mood_page.dart
+++ b/lib/pages/mood_page.dart
@@ -1,4 +1,6 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/providers/input_provider.dart';
 import 'package:smoke_cess_app/widgets/mood_form.dart';
 
 class MoodPage extends StatelessWidget {
@@ -6,8 +8,10 @@ class MoodPage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const Center(
-      child: MoodForm(),
-    );
+    return Center(
+        child: ChangeNotifierProvider(
+      create: (context) => InputProvider(),
+      child: const MoodForm(),
+    ));
   }
 }
diff --git a/lib/pages/relapse_page.dart b/lib/pages/relapse_page.dart
index 7710e10..75e007d 100644
--- a/lib/pages/relapse_page.dart
+++ b/lib/pages/relapse_page.dart
@@ -1,10 +1,17 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/widgets/relapse_form.dart';
+import '../providers/input_provider.dart';
 
 class RelapsePage extends StatelessWidget {
   const RelapsePage({super.key});
 
   @override
   Widget build(BuildContext context) {
-    return const Center(child: Text('Hier werden Rückfälle dokumentiert'));
+    return Center(
+        child: ChangeNotifierProvider(
+      create: (context) => InputProvider(),
+      child: const RelapseForm(),
+    ));
   }
 }
diff --git a/lib/pages/scanner_page.dart b/lib/pages/scanner_page.dart
index c382990..29cf8a7 100644
--- a/lib/pages/scanner_page.dart
+++ b/lib/pages/scanner_page.dart
@@ -1,24 +1,45 @@
+import 'package:awesome_dialog/awesome_dialog.dart';
 import 'package:flutter/material.dart';
-import 'package:mobile_scanner/mobile_scanner.dart';
+import 'package:provider/provider.dart';
 import 'package:smoke_cess_app/models/mood.dart';
-import 'package:smoke_cess_app/models/settings.dart';
-import 'package:smoke_cess_app/service/database_service.dart';
-import 'package:smoke_cess_app/service/json_service.dart';
-import 'package:smoke_cess_app/service/settings_service.dart';
-import 'package:smoke_cess_app/service/notification_service.dart';
-
+import 'package:smoke_cess_app/models/relapse.dart';
+import 'package:smoke_cess_app/services/settings_service.dart';
+import 'package:smoke_cess_app/services/notification_service.dart';
+import 'package:smoke_cess_app/widgets/scanner.dart';
 import '../models/sleep.dart';
-import '../widgets/missing_config_popup.dart';
+import '../providers/settings_provider.dart';
+import '../globals.dart' as globals;
 
-class ScannerPage extends StatefulWidget {
+class ScannerPage extends StatelessWidget {
   const ScannerPage({super.key});
 
-  @override
-  State<StatefulWidget> createState() => ScannerPageState();
-}
+  void export() async {
+    List<Mood> moods = await globals.databaseService.getMoodRecords();
+    List<Sleep> sleeps = await globals.databaseService.getSleepRecords();
+    List<Relapse> relapses = await globals.databaseService.getRelapseRecords();
+    for (Mood mood in moods) {
+      print(mood.toCSV());
+    }
+    for (Sleep sleep in sleeps) {
+      print(sleep.toCSV());
+    }
+    for (Relapse relapse in relapses) {
+      print(relapse.toCSV());
+    }
+  }
 
-class ScannerPageState extends State<ScannerPage> {
-  bool scanning = false;
+  void loadJSON(BuildContext context) async {
+    var settingsModel = context.read<SettingsProvider>();
+    await loadSettingsFromLocalJSON();
+    settingsModel.initSettings();
+    NotificationService().setAllNotifications();
+    AwesomeDialog(
+      context: context,
+      dialogType: DialogType.success,
+      title: 'Geschafft',
+      desc: 'Die Einstellung wurden erfolgreich gespeichert',
+    ).show();
+  }
 
   @override
   Widget build(BuildContext context) {
@@ -26,70 +47,19 @@ class ScannerPageState extends State<ScannerPage> {
         child: Column(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
-        scanning
-            ? Expanded(
-                child: MobileScanner(
-                fit: BoxFit.contain,
-                controller: MobileScannerController(
-                  detectionTimeoutMs: 2000,
-                ),
-                onDetect: (capture) {
-                  //TODO Errorhandling!!
-                  final List<Barcode> barcodes = capture.barcodes;
-                  for (final barcode in barcodes) {
-                    if (barcode.rawValue != null) {
-                      String qrText = barcode.rawValue!;
-                      Map<String, dynamic> json = stringToJSON(qrText);
-                      Settings settings = Settings.fromJson(json);
-                      saveSettings(settings);
-                      setState(() {
-                        scanning = false;
-                        showDialog(
-                            context: context,
-                            builder: (BuildContext context) {
-                              return MissingConfigPopup(
-                                title: 'Konfiguration erfolgreich',
-                                text: 'Du gehörst zu Gruppe ${settings.group}',
-                              );
-                            });
-                      });
-                    }
-                  }
-                },
-              ))
-            : ElevatedButton(
-                style: ElevatedButton.styleFrom(
-                    textStyle: const TextStyle(fontSize: 20)),
-                onPressed: () {
-                  setState(() => scanning = true);
-                },
-                child: const Text('Scan QR Code'),
-              ),
+        const MyScanner(),
         const SizedBox(height: 30),
         ElevatedButton(
           style: ElevatedButton.styleFrom(
               textStyle: const TextStyle(fontSize: 20)),
-          onPressed: () {
-            loadSettingsFromLocalJSON();
-            NotificationService().setAllNotifications();
-          },
+          onPressed: () => loadJSON(context),
           child: const Text('Read JSON'),
         ),
         const SizedBox(height: 30),
         ElevatedButton(
           style: ElevatedButton.styleFrom(
               textStyle: const TextStyle(fontSize: 20)),
-          onPressed: () async {
-            List<Mood> moods = await DatabaseService.instance.getMoodRecords();
-            List<Sleep> sleeps =
-                await DatabaseService.instance.getSleepRecords();
-            for (Mood mood in moods) {
-              print(mood.toCSV());
-            }
-            for (Sleep sleep in sleeps) {
-              print(sleep.toCSV());
-            }
-          },
+          onPressed: export,
           child: const Text('Export'),
         )
       ],
diff --git a/lib/pages/sleep_page.dart b/lib/pages/sleep_page.dart
index e736f44..22221f3 100644
--- a/lib/pages/sleep_page.dart
+++ b/lib/pages/sleep_page.dart
@@ -1,4 +1,6 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/providers/input_provider.dart';
 import 'package:smoke_cess_app/widgets/sleep_form.dart';
 
 class SleepPage extends StatelessWidget {
@@ -6,6 +8,10 @@ class SleepPage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const Center(child: SleepForm());
+    return Center(
+        child: ChangeNotifierProvider(
+      create: (context) => InputProvider(),
+      child: const SleepForm(),
+    ));
   }
 }
diff --git a/lib/providers/input_provider.dart b/lib/providers/input_provider.dart
new file mode 100644
index 0000000..a61514f
--- /dev/null
+++ b/lib/providers/input_provider.dart
@@ -0,0 +1,67 @@
+import 'package:flutter/material.dart';
+import 'package:smoke_cess_app/models/mood.dart';
+import 'package:smoke_cess_app/models/relapse.dart';
+import 'package:smoke_cess_app/models/sleep.dart';
+import '../globals.dart' as globals;
+
+class InputProvider extends ChangeNotifier {
+  double _sliderValue = 50;
+  final TextEditingController _textController = TextEditingController(text: '');
+  final Map<String, TimeOfDay> _times = {
+    'wokeUpAt': const TimeOfDay(hour: 8, minute: 0),
+    'sleptAt': const TimeOfDay(hour: 22, minute: 0),
+  };
+  String _relapseCategory = '';
+
+  double get sliderValue => _sliderValue;
+  TextEditingController get textController => _textController;
+  String get relapseCategory => _relapseCategory;
+
+  set sliderValue(double newValue) {
+    _sliderValue = newValue;
+    notifyListeners();
+  }
+
+  set relapseCategory(String newValue) {
+    _relapseCategory = newValue;
+    notifyListeners();
+  }
+
+  TimeOfDay getTimeEntry(String key) {
+    return _times[key] ?? const TimeOfDay(hour: 12, minute: 0);
+  }
+
+  void setTime(String key, TimeOfDay time) {
+    _times[key] = time;
+    notifyListeners();
+  }
+
+  void _resetFields() {
+    _sliderValue = 50;
+    _textController.text = '';
+    setTime('wokeUpAt', const TimeOfDay(hour: 8, minute: 0));
+    setTime('sleptAt', const TimeOfDay(hour: 22, minute: 0));
+    notifyListeners();
+  }
+
+  Future<int> saveMood() {
+    Mood mood =
+        Mood(_sliderValue.toInt(), _textController.text, DateTime.now());
+    _resetFields();
+    return globals.databaseService.addMood(mood);
+  }
+
+  Future<int> saveRelapse() {
+    Relapse relapse =
+        Relapse(_relapseCategory, _textController.text, DateTime.now());
+    _resetFields();
+    return globals.databaseService.addRelapse(relapse);
+  }
+
+  Future<int> saveSleep(String wokeUpKey, String sleptKey) {
+    Sleep sleep = Sleep(_sliderValue.toInt(), _textController.text,
+        DateTime.now(), getTimeEntry(sleptKey), getTimeEntry(wokeUpKey));
+    _resetFields();
+    return globals.databaseService.addSleep(sleep);
+  }
+}
diff --git a/lib/providers/settings_provider.dart b/lib/providers/settings_provider.dart
new file mode 100644
index 0000000..f51c5e1
--- /dev/null
+++ b/lib/providers/settings_provider.dart
@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+import 'package:smoke_cess_app/services/settings_service.dart';
+
+import '../models/settings.dart';
+
+class SettingsProvider extends ChangeNotifier {
+  Settings? _settings;
+  bool _initialized = false;
+
+  Settings? get settings => _settings;
+  bool get initialized => _initialized;
+
+  SettingsProvider() {
+    initSettings();
+  }
+
+  void initSettings() async {
+    _settings = await loadSettings();
+    _initialized = _settings != null ? true : false;
+    notifyListeners();
+  }
+}
diff --git a/lib/providers/timer_provider.dart b/lib/providers/timer_provider.dart
new file mode 100644
index 0000000..0601b39
--- /dev/null
+++ b/lib/providers/timer_provider.dart
@@ -0,0 +1,23 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+
+class TimerProvider extends ChangeNotifier {
+  Timer? _timer;
+  bool started = false;
+  int get elapsedSeconds => _timer != null ? _timer!.tick : 0;
+
+  void startTimer(Duration duration) {
+    started = true;
+    print('starting timer');
+    _timer = Timer.periodic(const Duration(seconds: 1), ((timer) {
+      if (timer.tick >= duration.inSeconds) {
+        timer.cancel();
+        started = false;
+      }
+      notifyListeners();
+    }));
+  }
+
+  void stopTimer() => _timer?.cancel();
+}
diff --git a/lib/service/query_service.dart b/lib/service/query_service.dart
deleted file mode 100644
index fc4f5a3..0000000
--- a/lib/service/query_service.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-import 'package:smoke_cess_app/interface/db_record.dart';
-import 'package:smoke_cess_app/mock/db_mock.dart';
-
-class QueryService {
-  final DatabaseMock _database;
-
-  QueryService(this._database);
-
-  void addRecord(DatabaseRecord record) => _database.saveRecord(record);
-  List<DatabaseRecord> getWorkoutRecords() => _database.getWorkoutRecords();
-  List<DatabaseRecord> getMoodRecords() => _database.getMoodRecords();
-  List<DatabaseRecord> getSleepRecords() => _database.getSleepRecords();
-
-  String recordsToCSV(List<DatabaseRecord> records) {
-    String csv = "";
-    for (DatabaseRecord record in records) {
-      csv += '${record.toCSV()}\n';
-    }
-    return csv;
-  }
-}
diff --git a/lib/service/database_service.dart b/lib/services/database_service.dart
similarity index 83%
rename from lib/service/database_service.dart
rename to lib/services/database_service.dart
index 26973f4..030a5af 100644
--- a/lib/service/database_service.dart
+++ b/lib/services/database_service.dart
@@ -2,6 +2,7 @@ import 'dart:async';
 
 import 'package:path/path.dart';
 import 'package:smoke_cess_app/models/mood.dart';
+import 'package:smoke_cess_app/models/relapse.dart';
 import 'package:sqflite/sqflite.dart';
 // ignore: depend_on_referenced_packages
 import 'package:path_provider/path_provider.dart';
@@ -53,6 +54,15 @@ class DatabaseService {
     return sleepList;
   }
 
+  Future<List<Relapse>> getRelapseRecords() async {
+    Database db = await instance.database;
+    var relapseRecords = await db.query('relapse');
+    List<Relapse> relapseList = relapseRecords.isNotEmpty
+        ? relapseRecords.map((e) => Relapse.fromDatabase(e)).toList()
+        : [];
+    return relapseList;
+  }
+
   Future<int> addMood(Mood mood) async {
     Database db = await instance.database;
     return await db.insert('mood', mood.toMap());
@@ -62,6 +72,11 @@ class DatabaseService {
     Database db = await instance.database;
     return await db.insert('sleep', sleep.toMap());
   }
+
+  Future<int> addRelapse(Relapse relapse) async {
+    Database db = await instance.database;
+    return await db.insert('relapse', relapse.toMap());
+  }
 }
 
 String _createMoodTable = '''
@@ -79,8 +94,8 @@ String _createSleepTable = '''
         value INTEGER,
         date TEXT,
         comment TEXT,
-        sleepedAtHour INTEGER,
-        sleepedAtMinute INTEGER,
+        sleptAtHour INTEGER,
+        sleptAtMinute INTEGER,
         wokeUpAtHour INTEGER,
         wokeUpAtMinute INTEGER
       )
diff --git a/lib/service/date_service.dart b/lib/services/date_service.dart
similarity index 83%
rename from lib/service/date_service.dart
rename to lib/services/date_service.dart
index b422509..0fd108e 100644
--- a/lib/service/date_service.dart
+++ b/lib/services/date_service.dart
@@ -1,4 +1,4 @@
-import 'package:smoke_cess_app/service/settings_service.dart';
+import 'package:smoke_cess_app/services/settings_service.dart';
 import 'package:timezone/timezone.dart';
 
 const int trainingTime = 40;
@@ -13,15 +13,6 @@ const weekDays = {
   "Sonntag": 7,
 };
 
-Future<List<TZDateTime>> getDatesforAll() async {
-  List<TZDateTime> allDates = [];
-  List<TZDateTime> moodDates = await getDatesforMood();
-  List<TZDateTime> sleepDates = await getDatesforSleep();
-  allDates.addAll(moodDates);
-  allDates.addAll(sleepDates);
-  return allDates;
-}
-
 Future<List<TZDateTime>> getDatesforMood() async {
   final List<String>? selectedDays = await getMoodQueryDaysCategories();
   final int? selectedHours = await getMoodQueryHours();
diff --git a/lib/service/json_service.dart b/lib/services/json_service.dart
similarity index 100%
rename from lib/service/json_service.dart
rename to lib/services/json_service.dart
diff --git a/lib/service/notification_service.dart b/lib/services/notification_service.dart
similarity index 79%
rename from lib/service/notification_service.dart
rename to lib/services/notification_service.dart
index 2f564ce..2de386c 100644
--- a/lib/service/notification_service.dart
+++ b/lib/services/notification_service.dart
@@ -1,5 +1,5 @@
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
-import 'package:smoke_cess_app/service/date_service.dart';
+import 'package:smoke_cess_app/services/date_service.dart';
 import 'package:timezone/timezone.dart';
 
 class NotificationService {
@@ -36,29 +36,6 @@ class NotificationService {
     await flutterLocalNotificationsPlugin.initialize(initializationSettings);
   }
 
-  Future<void> showNotification() async {
-    await flutterLocalNotificationsPlugin.show(
-      0,
-      'test',
-      'test',
-//schedule the notification to show after 2 seconds.
-      const NotificationDetails(
-        // Android details
-        android: AndroidNotificationDetails('main_channel', 'Main Channel',
-            channelDescription: "ashwin",
-            importance: Importance.max,
-            priority: Priority.max),
-        // iOS details
-        iOS: DarwinNotificationDetails(
-          sound: 'default.wav',
-          presentAlert: true,
-          presentBadge: true,
-          presentSound: true,
-        ),
-      ),
-    );
-  }
-
   Future<void> setAllNotifications() async {
     List<TZDateTime> moodDates = await getDatesforMood();
     List<TZDateTime> sleepDates = await getDatesforSleep();
diff --git a/lib/services/pages_service.dart b/lib/services/pages_service.dart
new file mode 100644
index 0000000..8f3ab37
--- /dev/null
+++ b/lib/services/pages_service.dart
@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+import '../pages/interval_page.dart';
+import '../pages/mood_page.dart';
+import '../pages/relapse_page.dart';
+import '../pages/scanner_page.dart';
+import '../pages/sleep_page.dart';
+
+const pages = {
+  'Stimmung': {
+    'page': MoodPage(),
+    'icon': Icon(Icons.mood_outlined, color: Colors.black)
+  },
+  'Schlaf': {
+    'page': SleepPage(),
+    'icon': Icon(Icons.bedtime_outlined, color: Colors.black)
+  },
+  'Timer': {
+    'page': IntervalTimerPage(),
+    'icon': Icon(Icons.timer_outlined, color: Colors.black)
+  },
+  'Rückfall': {
+    'page': RelapsePage(),
+    'icon': Icon(Icons.smoke_free_outlined, color: Colors.black),
+  },
+  'Scanner': {
+    'page': ScannerPage(),
+    'icon': Icon(Icons.camera_alt_outlined, color: Colors.black)
+  },
+};
diff --git a/lib/service/settings_service.dart b/lib/services/settings_service.dart
similarity index 61%
rename from lib/service/settings_service.dart
rename to lib/services/settings_service.dart
index dca2839..8c7e7a7 100644
--- a/lib/service/settings_service.dart
+++ b/lib/services/settings_service.dart
@@ -1,6 +1,6 @@
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:smoke_cess_app/models/settings.dart';
-import 'package:smoke_cess_app/service/json_service.dart';
+import 'package:smoke_cess_app/services/json_service.dart';
 
 //access group setting which was saved in local storage
 Future<int?> getGroup() => _getIntSetting('group');
@@ -54,14 +54,37 @@ Future<void> loadSettingsFromLocalJSON() async {
 void saveSettings(Settings settings) {
   _setIntSetting('group', settings.group);
   _setStringListSetting('relapse_categories', settings.relapseCategories!);
-  _setStringListSetting('mood_query_days', settings.moodQuery.days!);
-  _setIntSetting('mood_query_hours', settings.moodQuery.hours);
-  _setIntSetting('mood_query_minutes', settings.moodQuery.minutes);
-  _setStringListSetting('sleep_query_days', settings.sleepQuery.days!);
-  _setIntSetting('sleep_query_hours', settings.sleepQuery.hours);
-  _setIntSetting('sleep_query_minutes', settings.sleepQuery.minutes);
+  _setStringListSetting('mood_query_days', settings.moodQuery!.days!);
+  _setIntSetting('mood_query_hours', settings.moodQuery!.hours!);
+  _setIntSetting('mood_query_minutes', settings.moodQuery!.minutes!);
+  _setStringListSetting('sleep_query_days', settings.sleepQuery!.days!);
+  _setIntSetting('sleep_query_hours', settings.sleepQuery!.hours!);
+  _setIntSetting('sleep_query_minutes', settings.sleepQuery!.minutes!);
   if (settings.chessTime != null) {
-    _setIntSetting('chess_hours', settings.chessTime!.hours);
-    _setIntSetting('chess_minutes', settings.chessTime!.minutes);
+    _setIntSetting('chess_hours', settings.chessTime!.hours!);
+    _setIntSetting('chess_minutes', settings.chessTime!.minutes!);
   }
 }
+
+Future<Settings?> loadSettings() async {
+  int? group = await getGroup();
+  List<String>? relapseCategories = await getRelapseCategories();
+  int? moodHours = await getMoodQueryHours();
+  int? moodMinutes = await getMoodQueryMinutes();
+  List<String>? moodDays = await getMoodQueryDaysCategories();
+  int? sleepHours = await getSleepQueryHours();
+  int? sleepMinutes = await getSleepQueryMinutes();
+  List<String>? sleepDays = await getSleepQueryDaysCategories();
+  int? chessHours = await getChessHours();
+  int? chessMinutes = await getChessMinutes();
+
+  if (group != null) {
+    return Settings(
+        group,
+        relapseCategories,
+        QueryConfig(moodHours, moodMinutes, moodDays),
+        QueryConfig(sleepHours, sleepMinutes, sleepDays),
+        TimeConfig(chessHours, chessMinutes));
+  }
+  return null;
+}
diff --git a/lib/utils/timer_util.dart b/lib/utils/timer_util.dart
new file mode 100644
index 0000000..58d9690
--- /dev/null
+++ b/lib/utils/timer_util.dart
@@ -0,0 +1,4 @@
+String formatTime(int seconds) {
+  Duration duration = Duration(seconds: seconds);
+  return '${duration.inMinutes.remainder(60).toString().padLeft(2, '0')}:${duration.inSeconds.remainder(60).toString().padLeft(2, '0')}';
+}
diff --git a/lib/widgets/drop_down.dart b/lib/widgets/drop_down.dart
new file mode 100644
index 0000000..5f06d89
--- /dev/null
+++ b/lib/widgets/drop_down.dart
@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/input_provider.dart';
+
+class DropDown extends StatelessWidget {
+  final List<String> _items;
+  const DropDown(this._items, {super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    var inputModel = context.watch<InputProvider>();
+    return DropdownButtonFormField<String>(
+      value: _items.isEmpty ? null : _items[0],
+      icon: const Icon(Icons.arrow_downward),
+      elevation: 16,
+      onChanged: (String? value) {
+        inputModel.relapseCategory = value ?? '';
+      },
+      items: _items.map<DropdownMenuItem<String>>((String value) {
+        return DropdownMenuItem<String>(
+          value: value,
+          child: Text(value),
+        );
+      }).toList(),
+    );
+  }
+}
diff --git a/lib/widgets/mood_form.dart b/lib/widgets/mood_form.dart
index f6fd0e0..b9a0e05 100644
--- a/lib/widgets/mood_form.dart
+++ b/lib/widgets/mood_form.dart
@@ -1,54 +1,39 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 import 'package:smoke_cess_app/models/mood.dart';
-import 'package:smoke_cess_app/service/database_service.dart';
+import 'package:smoke_cess_app/services/database_service.dart';
 import 'package:smoke_cess_app/widgets/slider.dart';
 import 'package:smoke_cess_app/widgets/submit_form_button.dart';
 import 'package:smoke_cess_app/widgets/text_formfield.dart';
 
+import '../providers/input_provider.dart';
 import 'elevated_card.dart';
 
-class MoodForm extends StatefulWidget {
+class MoodForm extends StatelessWidget {
   const MoodForm({super.key});
 
-  @override
-  State<MoodForm> createState() => _MoodFormState();
-}
-
-class _MoodFormState extends State<MoodForm> {
-  final GlobalKey<FormState> _moodFormKey = GlobalKey<FormState>();
-  MySlider slider = MySlider();
-  String _textInput = "";
-
-  void submitForm() {
-    if (_moodFormKey.currentState!.validate()) {
-      _moodFormKey.currentState?.save(); //call every onSave Method
-      Mood mood = Mood(slider.sliderValue.toInt(), _textInput, DateTime.now());
-      DatabaseService.instance.addMood(mood);
-      _moodFormKey.currentState?.reset();
-    }
-  }
-
-  void onFormFieldSave(String? newValue) => _textInput = newValue!;
-
   @override
   Widget build(BuildContext context) {
-    return Form(
-        key: _moodFormKey,
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            ElevatedCard(
-              title: 'Stimmungsbewertung',
-              child: slider,
-            ),
-            const SizedBox(height: 16),
-            ElevatedCard(
-              title: 'Beschreibe deine Stimmung',
-              child:
-                  MyTextFormField('Beschreibe deine Stimmung', onFormFieldSave),
-            ),
-            SubmitFormButton(submitForm)
-          ],
-        ));
+    var inputModel = context.watch<InputProvider>();
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        const ElevatedCard(
+          title: 'Stimmungsbewertung',
+          child: MySlider(),
+        ),
+        const SizedBox(height: 16),
+        const ElevatedCard(
+          title: 'Beschreibe deine Stimmung',
+          child: MyTextFormField('Beschreibe deine Stimmung'),
+        ),
+        const SizedBox(
+          height: 80,
+        ),
+        SubmitFormButton(
+          submitCallback: inputModel.saveMood,
+        )
+      ],
+    );
   }
 }
diff --git a/lib/widgets/popup_for_start_and_stop.dart b/lib/widgets/popup_for_start_and_stop.dart
index b8ed90a..e1af268 100644
--- a/lib/widgets/popup_for_start_and_stop.dart
+++ b/lib/widgets/popup_for_start_and_stop.dart
@@ -1,41 +1,26 @@
 import 'package:flutter/material.dart';
 import 'package:smoke_cess_app/widgets/slider.dart';
-import 'package:smoke_cess_app/widgets/submit_form_button.dart';
 import 'package:smoke_cess_app/widgets/text_formfield.dart';
 
-class TimerStartStopPopup extends StatefulWidget {
+class TimerStartStopPopup extends StatelessWidget {
   final String title;
 
   const TimerStartStopPopup({Key? key, required this.title}) : super(key: key);
 
-  @override
-  TimerStartStopPopupState createState() => TimerStartStopPopupState();
-}
-
-class TimerStartStopPopupState extends State<TimerStartStopPopup> {
-  final MySlider slider = MySlider();
-
-  void submitForm(BuildContext context) {
-    Navigator.of(context).pop();
-  }
-
-  void onFormFieldSave(String? newValue) => newValue!;
-
   @override
   Widget build(BuildContext context) {
     return AlertDialog(
-      title: Text(widget.title),
+      title: Text(title),
       content: Column(
         mainAxisSize: MainAxisSize.min,
         crossAxisAlignment: CrossAxisAlignment.start,
-        children: [
+        children: const [
           Padding(
             padding: const EdgeInsets.only(top: 8),
             child: MySlider(),
           ),
-          const SizedBox(height: 16),
-          MyTextFormField('Beschreibe deinen Motivation', onFormFieldSave),
-          SubmitFormButton(() => submitForm(context)),
+          SizedBox(height: 16),
+          MyTextFormField('Beschreibe deinen Motivation'),
         ],
       ),
     );
diff --git a/lib/widgets/relapse_form.dart b/lib/widgets/relapse_form.dart
new file mode 100644
index 0000000..88e555c
--- /dev/null
+++ b/lib/widgets/relapse_form.dart
@@ -0,0 +1,36 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/widgets/drop_down.dart';
+import 'package:smoke_cess_app/widgets/submit_form_button.dart';
+import 'package:smoke_cess_app/widgets/text_formfield.dart';
+
+import '../providers/input_provider.dart';
+import '../providers/settings_provider.dart';
+import 'elevated_card.dart';
+
+class RelapseForm extends StatelessWidget {
+  const RelapseForm({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    var inputModel = context.watch<InputProvider>();
+    var settingsModel = context.watch<SettingsProvider>();
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        ElevatedCard(
+          title: 'Rückfallkategorie',
+          child: DropDown(settingsModel.settings?.relapseCategories ?? []),
+        ),
+        const ElevatedCard(
+          title: 'Beschreibe deinen Rückfall',
+          child: MyTextFormField('Beschreibe deinen Rückfall'),
+        ),
+        const SizedBox(
+          height: 80,
+        ),
+        SubmitFormButton(submitCallback: inputModel.saveRelapse)
+      ],
+    );
+  }
+}
diff --git a/lib/widgets/scanner.dart b/lib/widgets/scanner.dart
new file mode 100644
index 0000000..46f8c8a
--- /dev/null
+++ b/lib/widgets/scanner.dart
@@ -0,0 +1,68 @@
+import 'package:awesome_dialog/awesome_dialog.dart';
+import 'package:flutter/material.dart';
+import 'package:mobile_scanner/mobile_scanner.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/models/settings.dart';
+import 'package:smoke_cess_app/services/json_service.dart';
+import 'package:smoke_cess_app/services/settings_service.dart';
+import '../providers/settings_provider.dart';
+import '../services/notification_service.dart';
+
+class MyScanner extends StatefulWidget {
+  const MyScanner({super.key});
+
+  @override
+  State<StatefulWidget> createState() => MyScannerState();
+}
+
+class MyScannerState extends State<MyScanner> {
+  bool scanning = false;
+
+  void handleSucces(String? rawValue) {
+    String qrText = rawValue!;
+    Map<String, dynamic> json = stringToJSON(qrText);
+    Settings settings = Settings.fromJson(json);
+    saveSettings(settings);
+    var settingsModel = context.read<SettingsProvider>();
+    settingsModel.initSettings();
+    NotificationService().setAllNotifications();
+    setState(() {
+      scanning = false;
+      AwesomeDialog(
+        context: context,
+        dialogType: DialogType.success,
+        title: 'Geschafft',
+        desc: 'Der Code wurde erfolgreich gescannt!',
+      ).show();
+    });
+  }
+
+  void onDetect(capture) {
+    final List<Barcode> barcodes = capture.barcodes;
+    for (final barcode in barcodes) {
+      if (barcode.rawValue != null) {
+        return handleSucces(barcode.rawValue);
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return scanning
+        ? Expanded(
+            child: MobileScanner(
+                fit: BoxFit.contain,
+                controller: MobileScannerController(
+                  detectionTimeoutMs: 2000,
+                ),
+                onDetect: onDetect))
+        : ElevatedButton(
+            style: ElevatedButton.styleFrom(
+                textStyle: const TextStyle(fontSize: 20)),
+            onPressed: () {
+              setState(() => scanning = true);
+            },
+            child: const Text('Scan QR Code'),
+          );
+  }
+}
diff --git a/lib/widgets/sleep_form.dart b/lib/widgets/sleep_form.dart
index eb86e89..8b4389c 100644
--- a/lib/widgets/sleep_form.dart
+++ b/lib/widgets/sleep_form.dart
@@ -1,94 +1,51 @@
 import 'package:flutter/material.dart';
-import 'package:smoke_cess_app/models/sleep.dart';
-import 'package:smoke_cess_app/service/database_service.dart';
+import 'package:provider/provider.dart';
 import 'package:smoke_cess_app/widgets/elevated_card.dart';
 import 'package:smoke_cess_app/widgets/slider.dart';
 import 'package:smoke_cess_app/widgets/submit_form_button.dart';
 import 'package:smoke_cess_app/widgets/text_formfield.dart';
 import 'package:smoke_cess_app/widgets/timepicker.dart';
 
-class SleepForm extends StatefulWidget {
+import '../providers/input_provider.dart';
+
+class SleepForm extends StatelessWidget {
   const SleepForm({Key? key}) : super(key: key);
 
-  @override
-  State<SleepForm> createState() => _SleepFormState();
-}
-
-class _SleepFormState extends State<SleepForm> {
-  final GlobalKey<FormState> _sleepFormKey = GlobalKey<FormState>();
-  MySlider slider = MySlider();
-  String _textInput = "";
-  TimePicker sleepTimePicker = TimePicker(
-    const TimeOfDay(hour: 22, minute: 00),
-  );
-  TimePicker wakeUpTimePicker = TimePicker(
-    const TimeOfDay(hour: 8, minute: 00),
-  );
-
-  void submitForm() {
-    if (_sleepFormKey.currentState!.validate()) {
-      _sleepFormKey.currentState?.save(); //call every onSave Method
-      Sleep sleep = Sleep(
-          slider.sliderValue.toInt(),
-          _textInput,
-          DateTime.now(),
-          sleepTimePicker.getCurrentTime,
-          wakeUpTimePicker.getCurrentTime);
-      DatabaseService.instance.addSleep(sleep);
-      _sleepFormKey.currentState?.reset();
-    }
-  }
-
-  void onFormFieldSave(String? newValue) => _textInput = newValue!;
-
   @override
   Widget build(BuildContext context) {
-    return Form(
-      key: _sleepFormKey,
-      child: Stack(
-        children: [
-          SingleChildScrollView(
-            child: Column(
-              mainAxisAlignment: MainAxisAlignment.center,
-              crossAxisAlignment: CrossAxisAlignment.stretch,
-              children: [
-                ElevatedCard(
-                  title: 'Einschlafzeit',
-                  child: sleepTimePicker,
-                ),
-                const SizedBox(height: 16),
-                ElevatedCard(
-                  title: 'Aufwachzeit',
-                  child: wakeUpTimePicker,
-                ),
-                const SizedBox(height: 16),
-                ElevatedCard(
-                  title: 'Schlafbewertung',
-                  child: slider,
-                ),
-                const SizedBox(height: 16),
-                ElevatedCard(
-                  title: 'Schlafbeschreibung',
-                  child: MyTextFormField(
-                      'Beschreibe deinen Schlaf', onFormFieldSave),
-                ),
-                const SizedBox(
-                  height: 80,
-                ),
-              ],
-            ),
-          ),
-          Positioned(
-            bottom: 0,
-            right: 0,
-            child: SizedBox(
-              width: 140,
-              height: 80,
-              child: SubmitFormButton(submitForm),
-            ),
-          ),
-        ],
-      ),
+    InputProvider inputModel = context.watch<InputProvider>();
+    String wokeUpKey = 'wokeUpAt';
+    String sleptKey = 'sleptAt';
+
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        ElevatedCard(
+          title: 'Einschlafzeit',
+          child: TimePicker(sleptKey),
+        ),
+        const SizedBox(height: 16),
+        ElevatedCard(
+          title: 'Aufwachzeit',
+          child: TimePicker(wokeUpKey),
+        ),
+        const SizedBox(height: 16),
+        const ElevatedCard(
+          title: 'Schlafbewertung',
+          child: MySlider(),
+        ),
+        const SizedBox(height: 16),
+        const ElevatedCard(
+          title: 'Schlafbeschreibung',
+          child: MyTextFormField('Beschreibe deinen Schlaf'),
+        ),
+        const SizedBox(
+          height: 80,
+        ),
+        SubmitFormButton(
+          submitCallback: () => inputModel.saveSleep(wokeUpKey, sleptKey),
+        )
+      ],
     );
   }
 }
diff --git a/lib/widgets/slider.dart b/lib/widgets/slider.dart
index b642916..fee5177 100644
--- a/lib/widgets/slider.dart
+++ b/lib/widgets/slider.dart
@@ -1,25 +1,19 @@
+import 'package:provider/provider.dart';
 import 'package:flutter/material.dart';
+import 'package:smoke_cess_app/providers/input_provider.dart';
 
-// ignore: must_be_immutable
-class MySlider extends StatefulWidget {
-  double _currentSliderValue = 50;
-  MySlider({Key? key}) : super(key: key);
+class MySlider extends StatelessWidget {
+  const MySlider({super.key});
 
-  @override
-  State<StatefulWidget> createState() => SliderState();
-
-  double get sliderValue => _currentSliderValue;
-}
-
-class SliderState extends State<MySlider> {
   @override
   Widget build(BuildContext context) {
+    InputProvider inputModel = context.watch<InputProvider>();
     return Center(
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
           const SizedBox(height: 16),
-          Text('${widget._currentSliderValue.toInt()}',
+          Text('${inputModel.sliderValue.toInt()}',
               style: const TextStyle(fontSize: 22)),
           Row(
             mainAxisAlignment: MainAxisAlignment.center,
@@ -27,31 +21,25 @@ class SliderState extends State<MySlider> {
               IconButton(
                 icon: const Icon(Icons.remove_outlined),
                 onPressed: () {
-                  setState(() {
-                    widget._currentSliderValue -= 1;
-                  });
+                  inputModel.sliderValue -= 1;
                 },
               ),
               Expanded(
                 child: Slider(
-                  value: widget._currentSliderValue,
+                  value: inputModel.sliderValue,
                   min: 0,
                   max: 100,
                   divisions: 100,
-                  label: widget._currentSliderValue.round().toString(),
+                  label: '${inputModel.sliderValue.toInt()}',
                   onChanged: (double value) {
-                    setState(() {
-                      widget._currentSliderValue = value;
-                    });
+                    inputModel.sliderValue = value;
                   },
                 ),
               ),
               IconButton(
                 icon: const Icon(Icons.add_outlined),
                 onPressed: () {
-                  setState(() {
-                    widget._currentSliderValue += 1;
-                  });
+                  inputModel.sliderValue += 1;
                 },
               ),
             ],
diff --git a/lib/widgets/submit_form_button.dart b/lib/widgets/submit_form_button.dart
index 58f28c8..3242b18 100644
--- a/lib/widgets/submit_form_button.dart
+++ b/lib/widgets/submit_form_button.dart
@@ -1,15 +1,31 @@
+import 'package:awesome_dialog/awesome_dialog.dart';
 import 'package:flutter/material.dart';
 
 class SubmitFormButton extends StatelessWidget {
-  final VoidCallback submitCallback;
-  const SubmitFormButton(this.submitCallback, {super.key});
+  final Future<int> Function() submitCallback;
+  const SubmitFormButton({super.key, required this.submitCallback});
 
   @override
   Widget build(BuildContext context) {
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 16.0),
       child: ElevatedButton(
-        onPressed: submitCallback,
+        onPressed: () async {
+          int success = await submitCallback();
+          success != 0
+              ? AwesomeDialog(
+                  context: context,
+                  dialogType: DialogType.success,
+                  title: 'Gespeichert',
+                  desc: 'Der Eintrag wurde erfolgreich gespeichert',
+                ).show()
+              : AwesomeDialog(
+                  context: context,
+                  dialogType: DialogType.error,
+                  title: 'Fehler',
+                  desc: 'Der Eintrag konnte nicht gespeichert werden',
+                ).show();
+        },
         child: const Text('Speichern'),
       ),
     );
diff --git a/lib/widgets/text_formfield.dart b/lib/widgets/text_formfield.dart
index 102a350..1e6e25c 100644
--- a/lib/widgets/text_formfield.dart
+++ b/lib/widgets/text_formfield.dart
@@ -1,18 +1,19 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/providers/input_provider.dart';
 
 class MyTextFormField extends StatelessWidget {
   final String _description;
-  final Function(String?) onSaveAction;
   const MyTextFormField(
-    this._description,
-    this.onSaveAction, {
+    this._description, {
     super.key,
   });
 
   @override
   Widget build(BuildContext context) {
+    var inputProvider = context.watch<InputProvider>();
     return TextFormField(
-      onSaved: onSaveAction,
+      controller: inputProvider.textController,
       decoration: InputDecoration(hintText: _description),
       validator: (String? value) =>
           value == null || value.isEmpty ? 'Text eingeben' : null,
diff --git a/lib/widgets/timepicker.dart b/lib/widgets/timepicker.dart
index 5e97af5..0b0926b 100644
--- a/lib/widgets/timepicker.dart
+++ b/lib/widgets/timepicker.dart
@@ -1,34 +1,28 @@
 import 'package:flutter/material.dart';
+import 'package:smoke_cess_app/providers/input_provider.dart';
+import 'package:provider/provider.dart';
 
-class TimePicker extends StatefulWidget {
-  TimeOfDay _initialTime;
-  TimePicker(this._initialTime, {Key? key});
+class TimePicker extends StatelessWidget {
+  final String keyMap;
 
-  TimeOfDay get getCurrentTime => _initialTime;
-
-  @override
-  State<StatefulWidget> createState() => TimePickerState();
-}
-
-
-class TimePickerState extends State<TimePicker> {
-  TimePickerState();
+  const TimePicker(this.keyMap, {super.key});
 
   @override
   Widget build(BuildContext context) {
+    InputProvider inputModel = context.watch<InputProvider>();
+
     return Center(
       child: Row(mainAxisAlignment: MainAxisAlignment.center, children: [
         Text(
-          '${widget._initialTime.hour.toString().padLeft(2, '0')}:${widget._initialTime.minute.toString().padLeft(2, '0')}',
+          '${inputModel.getTimeEntry(keyMap).hour.toString().padLeft(2, '0')}:${inputModel.getTimeEntry(keyMap).minute.toString().padLeft(2, '0')}',
           style: const TextStyle(fontSize: 22),
         ),
         const SizedBox(width: 16),
         ElevatedButton(
             onPressed: () async {
-              //TODO auslagern
               TimeOfDay? newTime = await showTimePicker(
                 context: context,
-                initialTime: widget._initialTime,
+                initialTime: inputModel.getTimeEntry(keyMap),
                 builder: (context, child) {
                   return MediaQuery(
                     data: MediaQuery.of(context)
@@ -38,9 +32,7 @@ class TimePickerState extends State<TimePicker> {
                 },
               );
               if (newTime == null) return;
-              setState(() {
-                widget._initialTime = newTime;
-              });
+              inputModel.setTime(keyMap, newTime);
             },
             child: const Text('Zeit einstellen'))
       ]),
diff --git a/lib/widgets/timer_widget.dart b/lib/widgets/timer_widget.dart
new file mode 100644
index 0000000..875697f
--- /dev/null
+++ b/lib/widgets/timer_widget.dart
@@ -0,0 +1,25 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:smoke_cess_app/providers/timer_provider.dart';
+import 'package:smoke_cess_app/utils/timer_util.dart';
+
+class TimerWidget extends StatelessWidget {
+  final Duration duration;
+  const TimerWidget({super.key, required this.duration});
+
+  @override
+  Widget build(BuildContext context) {
+    TimerProvider timerProvider = context.watch<TimerProvider>();
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        Text(formatTime(duration.inSeconds - timerProvider.elapsedSeconds)),
+        ElevatedButton(
+            onPressed: () => timerProvider.started
+                ? timerProvider.stopTimer()
+                : timerProvider.startTimer(duration),
+            child: Text(timerProvider.started ? 'Stop' : 'Start'))
+      ],
+    );
+  }
+}
diff --git a/pubspec.lock b/pubspec.lock
index 04c064a..08b0b74 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -64,6 +64,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.3"
+  awesome_dialog:
+    dependency: "direct main"
+    description:
+      name: awesome_dialog
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.2"
   boolean_selector:
     dependency: transitive
     description:
@@ -177,6 +184,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  graphs:
+    dependency: transitive
+    description:
+      name: graphs
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
   http:
     dependency: transitive
     description:
@@ -233,6 +247,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   path:
     dependency: "direct main"
     description:
@@ -310,6 +331,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.4"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.0.5"
+  rive:
+    dependency: transitive
+    description:
+      name: rive
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.1"
   shared_preferences:
     dependency: "direct main"
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index c4a8789..5c61553 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -34,6 +34,8 @@ dependencies:
   sqflite:
   path:
   path_provider: ^2.0.12
+  provider: ^6.0.5
+  awesome_dialog: ^3.0.2
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.