diff --git a/.vscode/launch.json b/.vscode/launch.json
index b425463..f7cbead 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -35,7 +35,7 @@
                 "--flavor",
                 "prod",
             ],
-            "program": "${workspaceFolder}/lib/main_release.dart",
+            "program": "${workspaceFolder}/lib/main_prod.dart",
         },
         {
             "name": "prod-profile",
@@ -46,7 +46,7 @@
                 "--flavor",
                 "prod",
             ],
-            "program": "${workspaceFolder}/lib/main_release.dart",
+            "program": "${workspaceFolder}/lib/main_prod.dart",
         },
         {
             "name": "dev-simulator",
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index a7d420e..5ab558a 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -14,6 +14,7 @@
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
             android:screenOrientation="portrait"
+            android:dataExtractionRules="@xml/data_extraction_rules"
             android:windowSoftInputMode="adjustResize">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
diff --git a/android/app/src/main/res/xml/data_extraction_rules.xml b/android/app/src/main/res/xml/data_extraction_rules.xml
new file mode 100644
index 0000000..0fb4694
--- /dev/null
+++ b/android/app/src/main/res/xml/data_extraction_rules.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<data-extraction-rules>
+    <cloud-backup>
+        <exclude domain="sharedpref" path="FlutterSecureStorage"/>
+        <exclude domain="sharedpref" path="FlutterSecureKeyStorage"/>
+    </cloud-backup>
+    <device-transfer>
+        <exclude domain="sharedpref" path="FlutterSecureStorage"/>
+        <exclude domain="sharedpref" path="FlutterSecureKeyStorage"/>
+    </device-transfer>
+</data-extraction-rules>
\ No newline at end of file
diff --git a/lib/application_wrapper.dart b/lib/application_wrapper.dart
index ae7d1ae..9f824d4 100644
--- a/lib/application_wrapper.dart
+++ b/lib/application_wrapper.dart
@@ -26,11 +26,14 @@ class ApplicationWrapper extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final remoteConfigService = env.buildType != BuildType.dev
+        ? const RemoteConfigService(LightmeterAnalytics(api: LightmeterAnalyticsFirebase()))
+        : const MockRemoteConfigService();
     return FutureBuilder(
       future: Future.wait<dynamic>([
         SharedPreferences.getInstance(),
         const LightSensorService(LocalPlatform()).hasSensor(),
-        if (env.buildType != BuildType.dev) const RemoteConfigService().activeAndFetchFeatures(),
+        remoteConfigService.activeAndFetchFeatures(),
       ]),
       builder: (_, snapshot) {
         if (snapshot.data != null) {
@@ -47,8 +50,7 @@ class ApplicationWrapper extends StatelessWidget {
             userPreferencesService: userPreferencesService,
             volumeEventsService: const VolumeEventsService(LocalPlatform()),
             child: RemoteConfigProvider(
-              remoteConfigService:
-                  env.buildType != BuildType.dev ? const RemoteConfigService() : const MockRemoteConfigService(),
+              remoteConfigService: remoteConfigService,
               child: EquipmentProfileProvider(
                 storageService: iapService,
                 child: FilmsProvider(
diff --git a/lib/data/analytics/analytics.dart b/lib/data/analytics/analytics.dart
index 1bd6496..45bfd22 100644
--- a/lib/data/analytics/analytics.dart
+++ b/lib/data/analytics/analytics.dart
@@ -3,32 +3,56 @@ import 'dart:developer';
 
 import 'package:flutter/foundation.dart';
 import 'package:lightmeter/data/analytics/api/analytics_api_interface.dart';
-import 'package:lightmeter/data/analytics/entity/analytics_event.dart';
 
 class LightmeterAnalytics {
   final ILightmeterAnalyticsApi _api;
 
   const LightmeterAnalytics({required ILightmeterAnalyticsApi api}) : _api = api;
 
+  void init() {
+    FlutterError.onError = (details) {
+      if (details.silent) return;
+      logCrash(details.exception, details.stack);
+    };
+    PlatformDispatcher.instance.onError = (error, stack) {
+      logCrash(error, stack);
+      return true;
+    };
+  }
+
   Future<void> logEvent(
-    LightmeterAnalyticsEvent event, {
+    String eventName, {
     Map<String, dynamic>? parameters,
   }) async {
-    if (kDebugMode) {
-      log('<LightmeterAnalytics> logEvent: ${event.name} / $parameters');
+    if (!kReleaseMode) {
+      log('<LightmeterAnalytics> logEvent: $eventName / $parameters');
       return;
     }
 
     return _api.logEvent(
-      event: event,
+      eventName,
       parameters: parameters,
     );
   }
 
-  Future<void> logUnlockProFeatures(String listTileTitle) async {
-    return logEvent(
-      LightmeterAnalyticsEvent.unlockProFeatures,
-      parameters: {"listTileTitle": listTileTitle},
+  Future<void> logCrash(
+    dynamic exception,
+    StackTrace? stackTrace, {
+    dynamic reason,
+    Iterable<Object> information = const [],
+  }) async {
+    log(exception.toString(), stackTrace: stackTrace);
+    if (!kReleaseMode) {
+      return;
+    }
+
+    return _api.logCrash(
+      exception,
+      stackTrace,
+      reason: reason,
+      information: information,
     );
   }
+
+  Future<void> setCustomKey(String key, String value) async => _api.setCustomKey(key, value);
 }
diff --git a/lib/data/analytics/api/analytics_api_interface.dart b/lib/data/analytics/api/analytics_api_interface.dart
index 1aa007f..ab75036 100644
--- a/lib/data/analytics/api/analytics_api_interface.dart
+++ b/lib/data/analytics/api/analytics_api_interface.dart
@@ -1,8 +1,15 @@
-import 'package:lightmeter/data/analytics/entity/analytics_event.dart';
-
 abstract class ILightmeterAnalyticsApi {
-  Future<void> logEvent({
-    required LightmeterAnalyticsEvent event,
+  Future<void> logEvent(
+    String eventName, {
     Map<String, dynamic>? parameters,
   });
+
+  Future<void> logCrash(
+    dynamic exception,
+    StackTrace? stack, {
+    dynamic reason,
+    Iterable<Object> information = const [],
+  });
+
+  Future<void> setCustomKey(String key, String value);
 }
diff --git a/lib/data/analytics/api/analytics_firebase.dart b/lib/data/analytics/api/analytics_firebase.dart
index fb11d02..5c22454 100644
--- a/lib/data/analytics/api/analytics_firebase.dart
+++ b/lib/data/analytics/api/analytics_firebase.dart
@@ -1,20 +1,20 @@
 import 'package:firebase_analytics/firebase_analytics.dart';
 import 'package:firebase_core/firebase_core.dart';
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
 import 'package:flutter/foundation.dart';
 import 'package:lightmeter/data/analytics/api/analytics_api_interface.dart';
-import 'package:lightmeter/data/analytics/entity/analytics_event.dart';
 
 class LightmeterAnalyticsFirebase implements ILightmeterAnalyticsApi {
   const LightmeterAnalyticsFirebase();
 
   @override
-  Future<void> logEvent({
-    required LightmeterAnalyticsEvent event,
+  Future<void> logEvent(
+    String eventName, {
     Map<String, dynamic>? parameters,
   }) async {
     try {
       await FirebaseAnalytics.instance.logEvent(
-        name: event.name,
+        name: eventName,
         parameters: parameters,
       );
     } on FirebaseException catch (e) {
@@ -23,4 +23,25 @@ class LightmeterAnalyticsFirebase implements ILightmeterAnalyticsApi {
       debugPrint(e.toString());
     }
   }
+
+  @override
+  Future<void> logCrash(
+    dynamic exception,
+    StackTrace? stackTrace, {
+    dynamic reason,
+    Iterable<Object> information = const [],
+  }) async {
+    FirebaseCrashlytics.instance.recordError(
+      exception,
+      stackTrace,
+      reason: reason,
+      information: information,
+      fatal: true,
+    );
+  }
+
+  @override
+  Future<void> setCustomKey(String key, String value) async {
+    await FirebaseCrashlytics.instance.setCustomKey(key, value);
+  }
 }
diff --git a/lib/data/analytics/entity/analytics_event.dart b/lib/data/analytics/entity/analytics_event.dart
deleted file mode 100644
index 8275869..0000000
--- a/lib/data/analytics/entity/analytics_event.dart
+++ /dev/null
@@ -1,3 +0,0 @@
-enum LightmeterAnalyticsEvent {
-  unlockProFeatures,
-}
diff --git a/lib/data/remote_config_service.dart b/lib/data/remote_config_service.dart
index 1ae86ef..e15a927 100644
--- a/lib/data/remote_config_service.dart
+++ b/lib/data/remote_config_service.dart
@@ -2,9 +2,9 @@ import 'dart:async';
 import 'dart:developer';
 
 import 'package:firebase_core/firebase_core.dart';
-import 'package:firebase_crashlytics/firebase_crashlytics.dart';
 import 'package:firebase_remote_config/firebase_remote_config.dart';
 import 'package:flutter/foundation.dart';
+import 'package:lightmeter/data/analytics/analytics.dart';
 import 'package:lightmeter/data/models/feature.dart';
 
 abstract class IRemoteConfigService {
@@ -24,7 +24,9 @@ abstract class IRemoteConfigService {
 }
 
 class RemoteConfigService implements IRemoteConfigService {
-  const RemoteConfigService();
+  final LightmeterAnalytics analytics;
+
+  const RemoteConfigService(this.analytics);
 
   @override
   Future<void> activeAndFetchFeatures() async {
@@ -73,8 +75,8 @@ class RemoteConfigService implements IRemoteConfigService {
       try {
         final feature = Feature.values.firstWhere((f) => f.name == value.key);
         result[feature] = value.value.toValue(feature);
-      } catch (e) {
-        log(e.toString());
+      } catch (e, stackTrace) {
+        _logError(e, stackTrace: stackTrace);
       }
     }
     return result;
@@ -88,8 +90,8 @@ class RemoteConfigService implements IRemoteConfigService {
           for (final key in event.updatedKeys) {
             try {
               updatedFeatures.add(Feature.values.firstWhere((element) => element.name == key));
-            } catch (e) {
-              log(e.toString());
+            } catch (e, stackTrace) {
+              _logError(e, stackTrace: stackTrace);
             }
           }
           return updatedFeatures;
@@ -99,9 +101,7 @@ class RemoteConfigService implements IRemoteConfigService {
   @override
   bool isEnabled(Feature feature) => FirebaseRemoteConfig.instance.getBool(feature.name);
 
-  void _logError(dynamic throwable, {StackTrace? stackTrace}) {
-    FirebaseCrashlytics.instance.recordError(throwable, stackTrace);
-  }
+  void _logError(dynamic throwable, {StackTrace? stackTrace}) => analytics.logCrash(throwable, stackTrace);
 }
 
 class MockRemoteConfigService implements IRemoteConfigService {
diff --git a/lib/firebase.dart b/lib/firebase.dart
deleted file mode 100644
index 0a0e6b0..0000000
--- a/lib/firebase.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-import 'dart:developer';
-
-import 'package:firebase_core/firebase_core.dart';
-import 'package:firebase_crashlytics/firebase_crashlytics.dart';
-import 'package:flutter/foundation.dart';
-
-import 'package:lightmeter/firebase_options.dart';
-
-Future<void> initializeFirebase({required bool handleErrors}) async {
-  try {
-    await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
-    if (handleErrors) {
-      FlutterError.onError = FirebaseCrashlytics.instance.recordFlutterFatalError;
-      PlatformDispatcher.instance.onError = (error, stack) {
-        FirebaseCrashlytics.instance.recordError(error, stack, fatal: true);
-        return true;
-      };
-    }
-  } catch (e) {
-    log(e.toString());
-  }
-}
diff --git a/lib/l10n/intl_en.arb b/lib/l10n/intl_en.arb
index 02dbb3d..2f12693 100644
--- a/lib/l10n/intl_en.arb
+++ b/lib/l10n/intl_en.arb
@@ -99,7 +99,7 @@
     },
     "proFeatures": "Pro features",
     "unlockProFeatures": "Unlock Pro features",
-    "unlockProFeaturesDescription": "Unlock professional features:\n \u2022 Equipment profiles containing filters for aperture, shutter speed, and more\n \u2022 List of films with compensation for what's known as reciprocity failure\n \u2022 Spot metering\n \u2022 Histogram\n\nBy unlocking Pro features you support the development and make it possible to add new features to the app.",
+    "unlockProFeaturesDescription": "Unlock professional features:\n \u2022 Equipment profiles containing filters for aperture, shutter speed, and more\n \u2022 List of films with compensation for what's known as reciprocity failure\n \u2022 Spot metering & Histogram\n \u2022 And more!\n\nBy unlocking Pro features you support the development and make it possible to add new features to the app.",
     "unlock": "Unlock",
     "tooltipAdd": "Add",
     "tooltipClose": "Close",
diff --git a/lib/l10n/intl_fr.arb b/lib/l10n/intl_fr.arb
index 590976d..e1c7161 100644
--- a/lib/l10n/intl_fr.arb
+++ b/lib/l10n/intl_fr.arb
@@ -99,7 +99,7 @@
     },
     "proFeatures": "Fonctionnalités professionnelles",
     "unlockProFeatures": "Déverrouiller les fonctionnalités professionnelles",
-    "unlockProFeaturesDescription": "Déverrouillez des fonctions professionnelles:\n \u2022 Profils d'équipement contenant des filtres pour l'ouverture, la vitesse d'obturation et plus encore, ainsi qu'une liste de films avec compensation pour ce que l'on appelle l'échec de réciprocité\n \u2022 Mesure spot\n \u2022 Histogramme\n\nEn débloquant les fonctionnalités Pro, vous soutenez le développement et permettez d'ajouter de nouvelles fonctionnalités à l'application.",
+    "unlockProFeaturesDescription": "Déverrouillez des fonctions professionnelles:\n \u2022 Profils d'équipement contenant des filtres pour l'ouverture, la vitesse d'obturation et plus encore, ainsi qu'une liste de films avec compensation pour ce que l'on appelle l'échec de réciprocité\n \u2022 Mesure spot & Histogramme\n \u2022 Et plus encore!\n\nEn débloquant les fonctionnalités Pro, vous soutenez le développement et permettez d'ajouter de nouvelles fonctionnalités à l'application.",
     "unlock": "Déverrouiller",
     "tooltipAdd": "Ajouter",
     "tooltipClose": "Fermer",
diff --git a/lib/l10n/intl_ru.arb b/lib/l10n/intl_ru.arb
index e7f0743..912b65c 100644
--- a/lib/l10n/intl_ru.arb
+++ b/lib/l10n/intl_ru.arb
@@ -99,7 +99,7 @@
     },
     "proFeatures": "Профессиональные настройки",
     "unlockProFeatures": "Разблокировать профессиональные настройки",
-    "unlockProFeaturesDescription": "Вы можете разблокировать профессиональные настройки:\n \u2022 Профили оборудования, содержащие фильтры для диафрагмы, выдержки и других значений\n \u2022 Список пленок с компенсацией эффекта Шварцшильда\n \u2022 Точечный замер\n \u2022 Гистограмма\n\nПолучая доступ к профессиональным настройкам, вы поддерживаете разработку и делаете возможным появление новых функций в приложении.",
+    "unlockProFeaturesDescription": "Вы можете разблокировать профессиональные настройки:\n \u2022 Профили оборудования, содержащие фильтры для диафрагмы, выдержки и других значений\n \u2022 Список пленок с компенсацией эффекта Шварцшильда\n \u2022 Точечный замер и гистограмма\n \u2022 И другие возможности!\n\nПолучая доступ к профессиональным настройкам, вы поддерживаете разработку и делаете возможным появление новых функций в приложении.",
     "unlock": "Разблокировать",
     "tooltipAdd": "Добавить",
     "tooltipClose": "Закрыть",
diff --git a/lib/l10n/intl_zh.arb b/lib/l10n/intl_zh.arb
index 71fe757..7f81014 100644
--- a/lib/l10n/intl_zh.arb
+++ b/lib/l10n/intl_zh.arb
@@ -30,8 +30,8 @@
     "halfStops": "1/2",
     "thirdStops": "1/3",
     "calibration": "校准",
-    "calibrationMessage": "此应用测量读数的准确性完全取决于设备的硬件。因此，请考虑测试此应用并手动设置 EV 校准，以获得准确的测量结果。",
-    "calibrationMessageCameraOnly": "此应用程序测量读数的准确s性完全取决于设备的后置摄像头。因此，请考虑测试此应用并手动设置 EV 校准，以获得准确的测量结果。",
+    "calibrationMessage": "此应用程序测量读数的准确性取决于设备的后置摄像头。如需更精确的测量结果或测量结果存在偏差，请手动校准 EV 。",
+    "calibrationMessageCameraOnly": "此应用程序测量读数的准确性取决于设备的后置摄像头。如需更精确的测量结果或测量结果存在偏差，请手动校准 EV 。",
     "camera": "摄像头",
     "lightSensor": "光传感器",
     "showEv100": "显示 EV\u2081\u2080\u2080",
@@ -55,14 +55,14 @@
     "apertureValues": "光圈值",
     "apertureValuesFilterDescription": "选择要显示的光圈值范围。这通常由您使用的镜头决定。",
     "ndFilters": "ND 滤镜",
-    "ndFiltersFilterDescription": "选择要显示的 ND 滤镜系数。这些可能是您最常用的 ND 滤镜，也可能是适合您镜头的滤光镜。",
+    "ndFiltersFilterDescription": "选择要显示的 ND 滤镜系数。可能是您最常用的 ND 滤镜，也可能是适合您镜头的减光镜。",
     "shutterSpeedValues": "快门速度",
     "shutterSpeedValuesFilterDescription": "选择要显示的快门速度范围。这通常由您使用的相机机身决定。",
     "isoValues": "ISO",
-    "isoValuesFilterDescription": "选择要显示的 ISO 。这些值可能是您最常用的值，也可能是相机支持的值。",
+    "isoValuesFilterDescription": "选择要显示的 ISO 。这些可能是您常用的ISO值，也可以是相机支持的ISO范围。",
     "equipmentProfile": "设备配置",
     "equipmentProfiles": "设备配置",
-    "tapToAdd": "點擊添加",
+    "tapToAdd": "点击添加",
     "filmsInUse": "使用的胶片",
     "filmsInUseDescription": "选择你使用的胶片",
     "general": "通用",
@@ -99,7 +99,7 @@
     },
     "proFeatures": "专业功能",
     "unlockProFeatures": "解锁专业功能",
-    "unlockProFeaturesDescription": "\n \u2022 配置文件，其中包含光圈、快门速度等参数\n \u2022 胶卷列表，对胶片倒易率失效进行曝光补偿\n \u2022 点测光\n \u2022 直方图\n\n通过解锁专业版功能，您可以支持开发工作，帮助为应用程序添加新功能。",
+    "unlockProFeaturesDescription": "\n \u2022 配置文件，其中包含光圈、快门速度等参数\n \u2022 胶卷列表，对胶片倒易率失效进行曝光补偿\n \u2022 点测光和直方图\n \u2022 和更多\n\n通过解锁专业版功能，您可以支持开发工作，帮助为应用程序添加新功能。",
     "unlock": "解锁",
     "tooltipAdd": "添加",
     "tooltipClose": "关闭",
diff --git a/lib/main_dev.dart b/lib/main_dev.dart
index b43352f..0899050 100644
--- a/lib/main_dev.dart
+++ b/lib/main_dev.dart
@@ -1,18 +1,4 @@
-import 'package:flutter/material.dart';
-import 'package:lightmeter/application.dart';
-import 'package:lightmeter/application_wrapper.dart';
 import 'package:lightmeter/environment.dart';
-import 'package:m3_lightmeter_iap/m3_lightmeter_iap.dart';
+import 'package:lightmeter/runner.dart';
 
-Future<void> main() async {
-  WidgetsFlutterBinding.ensureInitialized();
-  runApp(
-    IAPProducts(
-      products: [IAPProduct(storeId: IAPProductType.paidFeatures.storeId)],
-      child: const ApplicationWrapper(
-        Environment.dev(),
-        child: Application(),
-      ),
-    ),
-  );
-}
+Future<void> main() => runLightmeterApp(const Environment.dev());
diff --git a/lib/main_prod.dart b/lib/main_prod.dart
index 3460f32..30e0ce1 100644
--- a/lib/main_prod.dart
+++ b/lib/main_prod.dart
@@ -1,19 +1,4 @@
-import 'package:flutter/material.dart';
-import 'package:lightmeter/application.dart';
-import 'package:lightmeter/application_wrapper.dart';
 import 'package:lightmeter/environment.dart';
-import 'package:lightmeter/firebase.dart';
-import 'package:m3_lightmeter_iap/m3_lightmeter_iap.dart';
+import 'package:lightmeter/runner.dart';
 
-Future<void> main() async {
-  WidgetsFlutterBinding.ensureInitialized();
-  await initializeFirebase(handleErrors: true);
-  runApp(
-    const IAPProductsProvider(
-      child: ApplicationWrapper(
-        Environment.prod(),
-        child: Application(),
-      ),
-    ),
-  );
-}
+Future<void> main() => runLightmeterApp(const Environment.prod());
diff --git a/lib/main_release.dart b/lib/main_release.dart
deleted file mode 100644
index eea83e2..0000000
--- a/lib/main_release.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:lightmeter/application.dart';
-import 'package:lightmeter/application_wrapper.dart';
-import 'package:lightmeter/environment.dart';
-import 'package:lightmeter/firebase.dart';
-import 'package:m3_lightmeter_iap/m3_lightmeter_iap.dart';
-
-Future<void> main() async {
-  WidgetsFlutterBinding.ensureInitialized();
-  await initializeFirebase(handleErrors: false);
-  runApp(
-    const IAPProductsProvider(
-      child: ApplicationWrapper(
-        Environment.prod(),
-        child: Application(),
-      ),
-    ),
-  );
-}
diff --git a/lib/providers/services_provider.dart b/lib/providers/services_provider.dart
index 36f5674..1db019e 100644
--- a/lib/providers/services_provider.dart
+++ b/lib/providers/services_provider.dart
@@ -31,8 +31,10 @@ class ServicesProvider extends InheritedWidget {
     required super.child,
   });
 
-  static ServicesProvider of(BuildContext context) {
-    return context.findAncestorWidgetOfExactType<ServicesProvider>()!;
+  static ServicesProvider of(BuildContext context) => ServicesProvider.maybeOf(context)!;
+
+  static ServicesProvider? maybeOf(BuildContext context) {
+    return context.findAncestorWidgetOfExactType<ServicesProvider>();
   }
 
   @override
diff --git a/lib/runner.dart b/lib/runner.dart
new file mode 100644
index 0000000..04d4321
--- /dev/null
+++ b/lib/runner.dart
@@ -0,0 +1,35 @@
+import 'dart:async';
+
+import 'package:firebase_core/firebase_core.dart';
+import 'package:flutter/widgets.dart';
+import 'package:lightmeter/application.dart';
+import 'package:lightmeter/application_wrapper.dart';
+import 'package:lightmeter/data/analytics/analytics.dart';
+import 'package:lightmeter/data/analytics/api/analytics_firebase.dart';
+import 'package:lightmeter/environment.dart';
+import 'package:lightmeter/firebase_options.dart';
+import 'package:m3_lightmeter_iap/m3_lightmeter_iap.dart';
+
+const _errorsLogger = LightmeterAnalytics(api: LightmeterAnalyticsFirebase());
+
+Future<void> runLightmeterApp(Environment env) async {
+  runZonedGuarded(
+    () async {
+      WidgetsFlutterBinding.ensureInitialized();
+      if (env.buildType == BuildType.prod) {
+        await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
+      }
+      _errorsLogger.init();
+      final application = ApplicationWrapper(env, child: const Application());
+      runApp(
+        env.buildType == BuildType.dev
+            ? IAPProducts(
+                products: [IAPProduct(storeId: IAPProductType.paidFeatures.storeId)],
+                child: application,
+              )
+            : IAPProductsProvider(child: application),
+      );
+    },
+    _errorsLogger.logCrash,
+  );
+}
diff --git a/lib/screens/metering/components/camera_container/bloc_container_camera.dart b/lib/screens/metering/components/camera_container/bloc_container_camera.dart
index 3b5596b..cd91f59 100644
--- a/lib/screens/metering/components/camera_container/bloc_container_camera.dart
+++ b/lib/screens/metering/components/camera_container/bloc_container_camera.dart
@@ -7,6 +7,7 @@ import 'package:camera/camera.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:lightmeter/data/analytics/analytics.dart';
 import 'package:lightmeter/interactors/metering_interactor.dart';
 import 'package:lightmeter/platform_config.dart';
 import 'package:lightmeter/screens/metering/communication/bloc_communication_metering.dart';
@@ -22,6 +23,7 @@ part 'mock_bloc_container_camera.dart';
 
 class CameraContainerBloc extends EvSourceBlocBase<CameraContainerEvent, CameraContainerState> {
   final MeteringInteractor _meteringInteractor;
+  final LightmeterAnalytics _analytics;
   late final _WidgetsBindingObserver _observer;
 
   CameraController? _cameraController;
@@ -42,6 +44,7 @@ class CameraContainerBloc extends EvSourceBlocBase<CameraContainerEvent, CameraC
   CameraContainerBloc(
     this._meteringInteractor,
     MeteringCommunicationBloc communicationBloc,
+    this._analytics,
   ) : super(
           communicationBloc,
           const CameraInitState(),
@@ -223,8 +226,8 @@ class CameraContainerBloc extends EvSourceBlocBase<CameraContainerEvent, CameraC
       Directory(file.path).deleteSync(recursive: true);
 
       return await evFromImage(bytes);
-    } catch (e) {
-      log(e.toString());
+    } catch (e, stackTrace) {
+      _analytics.logCrash(e, stackTrace);
       return null;
     }
   }
diff --git a/lib/screens/metering/components/camera_container/mock_bloc_container_camera.dart b/lib/screens/metering/components/camera_container/mock_bloc_container_camera.dart
index f915a52..1806674 100644
--- a/lib/screens/metering/components/camera_container/mock_bloc_container_camera.dart
+++ b/lib/screens/metering/components/camera_container/mock_bloc_container_camera.dart
@@ -4,6 +4,7 @@ class MockCameraContainerBloc extends CameraContainerBloc {
   MockCameraContainerBloc(
     super._meteringInteractor,
     super.communicationBloc,
+    super._analytics,
   );
 
   @override
@@ -72,8 +73,8 @@ class MockCameraContainerBloc extends CameraContainerBloc {
     try {
       final bytes = (await rootBundle.load(PlatformConfig.cameraStubImage)).buffer.asUint8List();
       return await evFromImage(bytes);
-    } catch (e) {
-      log(e.toString());
+    } catch (e, stackTrace) {
+      log(e.toString(), stackTrace: stackTrace);
       return null;
     }
   }
diff --git a/lib/screens/metering/components/camera_container/provider_container_camera.dart b/lib/screens/metering/components/camera_container/provider_container_camera.dart
index 80be814..a4eec21 100644
--- a/lib/screens/metering/components/camera_container/provider_container_camera.dart
+++ b/lib/screens/metering/components/camera_container/provider_container_camera.dart
@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:lightmeter/data/models/exposure_pair.dart';
 import 'package:lightmeter/platform_config.dart';
+import 'package:lightmeter/providers/services_provider.dart';
 import 'package:lightmeter/screens/metering/communication/bloc_communication_metering.dart';
 import 'package:lightmeter/screens/metering/components/camera_container/bloc_container_camera.dart';
 import 'package:lightmeter/screens/metering/components/camera_container/event_container_camera.dart';
@@ -37,10 +38,12 @@ class CameraContainerProvider extends StatelessWidget {
           ? MockCameraContainerBloc(
               MeteringInteractorProvider.of(context),
               context.read<MeteringCommunicationBloc>(),
+              ServicesProvider.of(context).analytics,
             )
           : CameraContainerBloc(
               MeteringInteractorProvider.of(context),
               context.read<MeteringCommunicationBloc>(),
+              ServicesProvider.of(context).analytics,
             ))
         ..add(const RequestPermissionEvent()),
       child: CameraContainer(
diff --git a/lib/screens/shared/pro_features_dialog/widget_dialog_pro_features.dart b/lib/screens/shared/pro_features_dialog/widget_dialog_pro_features.dart
index c58e94d..3b8d4f2 100644
--- a/lib/screens/shared/pro_features_dialog/widget_dialog_pro_features.dart
+++ b/lib/screens/shared/pro_features_dialog/widget_dialog_pro_features.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:lightmeter/generated/l10n.dart';
+import 'package:lightmeter/providers/services_provider.dart';
 import 'package:lightmeter/res/dimens.dart';
 import 'package:lightmeter/screens/metering/components/shared/readings_container/components/shared/animated_dialog_picker/components/animated_dialog/widget_dialog_animated.dart';
 import 'package:lightmeter/screens/shared/transparent_dialog/widget_dialog_transparent.dart';
@@ -44,7 +45,12 @@ class ProFeaturesDialog extends StatelessWidget {
         ),
         FilledButton(
           onPressed: () {
-            _close(context).then((_) => IAPProductsProvider.maybeOf(context)?.buy(IAPProductType.paidFeatures));
+            _close(context).then((_) {
+              ServicesProvider.maybeOf(context)
+                  ?.analytics
+                  .setCustomKey('iap_product_type', IAPProductType.paidFeatures.storeId);
+              IAPProductsProvider.maybeOf(context)?.buy(IAPProductType.paidFeatures);
+            });
           },
           child: Text(S.of(context).unlock),
         ),
diff --git a/lib/utils/ev_from_bytes.dart b/lib/utils/ev_from_bytes.dart
index c7d12ea..c7c7b63 100644
--- a/lib/utils/ev_from_bytes.dart
+++ b/lib/utils/ev_from_bytes.dart
@@ -1,27 +1,20 @@
-import 'dart:developer';
 import 'dart:math' as math;
-import 'dart:typed_data';
 
 import 'package:exif/exif.dart';
+import 'package:flutter/foundation.dart';
 import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
 
-Future<double?> evFromImage(Uint8List bytes) async {
-  try {
-    final tags = await readExifFromBytes(bytes);
-    final iso = double.tryParse("${tags["EXIF ISOSpeedRatings"]}");
-    final apertureValueRatio = (tags["EXIF FNumber"]?.values as IfdRatios?)?.ratios.first;
-    final speedValueRatio = (tags["EXIF ExposureTime"]?.values as IfdRatios?)?.ratios.first;
-    if (iso == null || apertureValueRatio == null || speedValueRatio == null) {
-      log('Error parsing EXIF: ${tags.keys}');
-      return null;
-    }
-
-    final aperture = apertureValueRatio.numerator / apertureValueRatio.denominator;
-    final speed = speedValueRatio.numerator / speedValueRatio.denominator;
-
-    return log2(math.pow(aperture, 2)) - log2(speed) - log2(iso / 100);
-  } catch (e) {
-    log(e.toString());
-    return null;
+Future<double> evFromImage(Uint8List bytes) async {
+  final tags = await readExifFromBytes(bytes);
+  final iso = double.tryParse("${tags["EXIF ISOSpeedRatings"]}");
+  final apertureValueRatio = (tags["EXIF FNumber"]?.values as IfdRatios?)?.ratios.first;
+  final speedValueRatio = (tags["EXIF ExposureTime"]?.values as IfdRatios?)?.ratios.first;
+  if (iso == null || apertureValueRatio == null || speedValueRatio == null) {
+    throw FlutterError('Error parsing EXIF: ${tags.keys}');
   }
+
+  final aperture = apertureValueRatio.numerator / apertureValueRatio.denominator;
+  final speed = speedValueRatio.numerator / speedValueRatio.denominator;
+
+  return log2(math.pow(aperture, 2)) - log2(speed) - log2(iso / 100);
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index 0698aaf..0302700 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: lightmeter
 description: Lightmeter app inspired by Material 3 design system.
 publish_to: "none"
-version: 0.17.0+46
+version: 0.17.2+48
 
 environment:
   sdk: ">=3.0.0 <4.0.0"
@@ -28,7 +28,7 @@ dependencies:
   m3_lightmeter_iap:
     git:
       url: "https://github.com/vodemn/m3_lightmeter_iap"
-      ref: v0.7.1
+      ref: v0.7.2
   m3_lightmeter_resources:
     git:
       url: "https://github.com/vodemn/m3_lightmeter_resources"
diff --git a/test/screens/metering/components/camera/bloc_container_camera_test.dart b/test/screens/metering/components/camera/bloc_container_camera_test.dart
index 52c57c8..2ec043e 100644
--- a/test/screens/metering/components/camera/bloc_container_camera_test.dart
+++ b/test/screens/metering/components/camera/bloc_container_camera_test.dart
@@ -2,6 +2,7 @@ import 'package:bloc_test/bloc_test.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:lightmeter/data/analytics/analytics.dart';
 import 'package:lightmeter/interactors/metering_interactor.dart';
 import 'package:lightmeter/screens/metering/communication/bloc_communication_metering.dart';
 import 'package:lightmeter/screens/metering/communication/event_communication_metering.dart' as communication_events;
@@ -18,11 +19,14 @@ class _MockMeteringCommunicationBloc
     extends MockBloc<communication_events.MeteringCommunicationEvent, communication_states.MeteringCommunicationState>
     implements MeteringCommunicationBloc {}
 
+class _MockLightmeterAnalytics extends Mock implements LightmeterAnalytics {}
+
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
 
   late _MockMeteringInteractor meteringInteractor;
   late _MockMeteringCommunicationBloc communicationBloc;
+  late _MockLightmeterAnalytics analytics;
   late CameraContainerBloc bloc;
 
   const cameraMethodChannel = MethodChannel('plugins.flutter.io/camera');
@@ -110,16 +114,21 @@ void main() {
 
   setUpAll(() {
     meteringInteractor = _MockMeteringInteractor();
-    communicationBloc = _MockMeteringCommunicationBloc();
 
+    communicationBloc = _MockMeteringCommunicationBloc();
     when(() => meteringInteractor.cameraEvCalibration).thenReturn(0.0);
     when(meteringInteractor.quickVibration).thenAnswer((_) async {});
+
+    analytics = _MockLightmeterAnalytics();
+    registerFallbackValue(StackTrace.empty);
+    when(() => analytics.logCrash(any<dynamic>(), any<StackTrace>())).thenAnswer((_) async {});
   });
 
   setUp(() {
     bloc = CameraContainerBloc(
       meteringInteractor,
       communicationBloc,
+      analytics,
     );
     TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
         .setMockMethodCallHandler(cameraMethodChannel, cameraMethodCallSuccessHandler);
diff --git a/test/utils/ev_from_bytes_test.dart b/test/utils/ev_from_bytes_test.dart
index f73a257..635bb3c 100644
--- a/test/utils/ev_from_bytes_test.dart
+++ b/test/utils/ev_from_bytes_test.dart
@@ -17,7 +17,7 @@ void main() {
       'no EXIF',
       () {
         final bytes = File('assets/launcher_icon_dev_512.png').readAsBytesSync();
-        expectLater(evFromImage(bytes), completion(null));
+        expectLater(evFromImage(bytes), throwsFlutterError);
       },
     );
   });