diff --git a/app/lib/activation_code/src/bloc/enter_activation_code_bloc.dart b/app/lib/activation_code/src/bloc/enter_activation_code_bloc.dart
index 9f08d173b..8294fbea0 100644
--- a/app/lib/activation_code/src/bloc/enter_activation_code_bloc.dart
+++ b/app/lib/activation_code/src/bloc/enter_activation_code_bloc.dart
@@ -15,6 +15,7 @@ import 'package:flutter/material.dart';
 import 'package:key_value_store/key_value_store.dart';
 import 'package:rxdart/rxdart.dart';
 import 'package:helper_functions/helper_functions.dart';
+import 'package:sharezone/l10n/feature_flag_l10n.dart';
 
 import '../models/enter_activation_code_result.dart';
 import 'enter_activation_code_activator.dart';
@@ -26,6 +27,7 @@ class EnterActivationCodeBloc extends BlocBase {
   final _enterActivationCodeSubject =
       BehaviorSubject<EnterActivationCodeResult>();
   final KeyValueStore keyValueStore;
+  final FeatureFlagl10n featureFlagl10n;
 
   String? _lastEnteredValue;
 
@@ -34,6 +36,7 @@ class EnterActivationCodeBloc extends BlocBase {
     this.crashAnalytics,
     this.appFunctions,
     this.keyValueStore,
+    this.featureFlagl10n,
   ) {
     _changeEnterActivationCodeResult(NoDataEnterActivationCodeResult());
   }
@@ -89,6 +92,11 @@ class EnterActivationCodeBloc extends BlocBase {
       return;
     }
 
+    if (_lastEnteredValue?.trim().toLowerCase() == 'l10n') {
+      _togglel10nFeatureFlag();
+      return;
+    }
+
     _changeEnterActivationCodeResult(LoadingEnterActivationCodeResult());
 
     final enterActivationCodeResult = await _runAppFunction(enteredValue);
@@ -107,6 +115,18 @@ class EnterActivationCodeBloc extends BlocBase {
     );
   }
 
+  void _togglel10nFeatureFlag() {
+    final currentValue = featureFlagl10n.isl10nEnabled;
+    featureFlagl10n.toggle();
+
+    _changeEnterActivationCodeResult(
+      SuccessfulEnterActivationCodeResult(
+        'l10n',
+        'l10n wurde ${!currentValue ? 'aktiviert' : 'deaktiviert'}. Starte die App neu, um die Änderungen zu sehen.',
+      ),
+    );
+  }
+
   Future<void> _clearCache(BuildContext context) async {
     await Future.wait([
       keyValueStore.clear(),
diff --git a/app/lib/activation_code/src/bloc/enter_activation_code_bloc_factory.dart b/app/lib/activation_code/src/bloc/enter_activation_code_bloc_factory.dart
index adf961012..5c752eab4 100644
--- a/app/lib/activation_code/src/bloc/enter_activation_code_bloc_factory.dart
+++ b/app/lib/activation_code/src/bloc/enter_activation_code_bloc_factory.dart
@@ -12,18 +12,21 @@ import 'package:bloc_base/bloc_base.dart';
 import 'package:crash_analytics/crash_analytics.dart';
 import 'package:key_value_store/key_value_store.dart';
 import 'package:sharezone/activation_code/src/bloc/enter_activation_code_bloc.dart';
+import 'package:sharezone/l10n/feature_flag_l10n.dart';
 
 class EnterActivationCodeBlocFactory extends BlocBase {
   final CrashAnalytics crashAnalytics;
   final Analytics analytics;
   final SharezoneAppFunctions appFunctions;
   final KeyValueStore keyValueStore;
+  final FeatureFlagl10n featureFlagl10n;
 
   EnterActivationCodeBlocFactory({
     required this.analytics,
     required this.crashAnalytics,
     required this.appFunctions,
     required this.keyValueStore,
+    required this.featureFlagl10n,
   });
 
   EnterActivationCodeBloc createBloc() {
@@ -32,6 +35,7 @@ class EnterActivationCodeBlocFactory extends BlocBase {
       crashAnalytics,
       appFunctions,
       keyValueStore,
+      featureFlagl10n,
     );
   }
 
diff --git a/app/lib/l10n/feature_flag_l10n.dart b/app/lib/l10n/feature_flag_l10n.dart
new file mode 100644
index 000000000..3fafa20ff
--- /dev/null
+++ b/app/lib/l10n/feature_flag_l10n.dart
@@ -0,0 +1,34 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:sharezone/util/cache/streaming_key_value_store.dart';
+
+class FeatureFlagl10n extends ChangeNotifier {
+  FeatureFlagl10n(this.keyValueStore) {
+    _subscription = keyValueStore
+        .getBool('l10n_enabled', defaultValue: false)
+        .listen((event) {
+      final newValue = event == true;
+      if (isl10nEnabled != newValue) {
+        isl10nEnabled = newValue;
+        notifyListeners();
+      }
+    });
+  }
+
+  final StreamingKeyValueStore keyValueStore;
+  late StreamSubscription<bool> _subscription;
+  bool isl10nEnabled = false;
+
+  void toggle() {
+    isl10nEnabled = !isl10nEnabled;
+    keyValueStore.setBool('l10n_enabled', isl10nEnabled);
+    notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _subscription.cancel();
+    super.dispose();
+  }
+}
diff --git a/app/lib/l10n/flutter_app_local_gateway.dart b/app/lib/l10n/flutter_app_local_gateway.dart
index badc45ea9..9a53b2f43 100644
--- a/app/lib/l10n/flutter_app_local_gateway.dart
+++ b/app/lib/l10n/flutter_app_local_gateway.dart
@@ -1,16 +1,23 @@
 import 'dart:convert';
 
+import 'package:sharezone/l10n/feature_flag_l10n.dart';
 import 'package:sharezone/util/cache/streaming_key_value_store.dart';
 import 'package:sharezone_localizations/sharezone_localizations.dart';
 
 class FlutterAppLocaleProviderGateway extends AppLocaleProviderGateway {
-  FlutterAppLocaleProviderGateway({required this.keyValueStore});
+  FlutterAppLocaleProviderGateway({
+    required this.keyValueStore,
+    required this.featureFlagl10n,
+  });
 
+  final FeatureFlagl10n featureFlagl10n;
   final StreamingKeyValueStore keyValueStore;
 
   @override
   Stream<AppLocales> getLocale() {
-    final defaultValue = jsonEncode(AppLocales.system.toMap());
+    final defaultValue = jsonEncode(featureFlagl10n.isl10nEnabled
+        ? AppLocales.system.toMap()
+        : AppLocales.en.toMap());
     return keyValueStore
         .getString('locale', defaultValue: defaultValue)
         .map((event) => AppLocales.fromMap(jsonDecode(event)));
diff --git a/app/lib/main/sharezone.dart b/app/lib/main/sharezone.dart
index ade560bd0..e98ac182b 100644
--- a/app/lib/main/sharezone.dart
+++ b/app/lib/main/sharezone.dart
@@ -21,6 +21,7 @@ import 'package:provider/provider.dart';
 import 'package:sharezone/dynamic_links/beitrittsversuch.dart';
 import 'package:sharezone/dynamic_links/dynamic_link_bloc.dart';
 import 'package:sharezone/dynamic_links/dynamic_links.dart';
+import 'package:sharezone/l10n/feature_flag_l10n.dart';
 import 'package:sharezone/l10n/flutter_app_local_gateway.dart';
 import 'package:sharezone/main/auth_app.dart';
 import 'package:sharezone/main/bloc_dependencies.dart';
@@ -75,6 +76,8 @@ class Sharezone extends StatefulWidget {
 class _SharezoneState extends State<Sharezone> with WidgetsBindingObserver {
   late SignUpBloc signUpBloc;
   late StreamSubscription<AuthUser?> authSubscription;
+  late StreamingKeyValueStore streamingKeyValueStore;
+  late FeatureFlagl10n featureFlagl10n;
 
   @override
   void initState() {
@@ -96,6 +99,11 @@ class _SharezoneState extends State<Sharezone> with WidgetsBindingObserver {
     authSubscription = listenToAuthStateChanged().listen((user) {
       authUserSubject.sink.add(user);
     });
+
+    streamingKeyValueStore = FlutterStreamingKeyValueStore(
+      widget.blocDependencies.streamingSharedPreferences,
+    );
+    featureFlagl10n = FeatureFlagl10n(streamingKeyValueStore);
   }
 
   void logAppOpen() {
@@ -132,13 +140,12 @@ class _SharezoneState extends State<Sharezone> with WidgetsBindingObserver {
                                 MobileDeviceInformationRetriever(),
                           ),
                         ),
+                        ChangeNotifierProvider.value(value: featureFlagl10n),
                         ChangeNotifierProvider(
                           create: (context) => AppLocaleProvider(
                             gateway: FlutterAppLocaleProviderGateway(
-                              keyValueStore: FlutterStreamingKeyValueStore(
-                                widget.blocDependencies
-                                    .streamingSharedPreferences,
-                              ),
+                              keyValueStore: streamingKeyValueStore,
+                              featureFlagl10n: featureFlagl10n,
                             ),
                           ),
                         ),
diff --git a/app/lib/main/sharezone_bloc_providers.dart b/app/lib/main/sharezone_bloc_providers.dart
index 50e902348..122fc9224 100644
--- a/app/lib/main/sharezone_bloc_providers.dart
+++ b/app/lib/main/sharezone_bloc_providers.dart
@@ -84,6 +84,7 @@ import 'package:sharezone/ical_links/dialog/ical_links_dialog_controller_factory
 import 'package:sharezone/ical_links/list/ical_links_page_controller.dart';
 import 'package:sharezone/ical_links/shared/ical_link_analytics.dart';
 import 'package:sharezone/ical_links/shared/ical_links_gateway.dart';
+import 'package:sharezone/l10n/feature_flag_l10n.dart';
 import 'package:sharezone/main/application_bloc.dart';
 import 'package:sharezone/main/bloc_dependencies.dart';
 import 'package:sharezone/main/onboarding/onboarding_navigator.dart';
@@ -593,6 +594,7 @@ class _SharezoneBlocProvidersState extends State<SharezoneBlocProviders> {
           analytics: analytics,
           appFunctions: api.references.functions,
           keyValueStore: widget.blocDependencies.keyValueStore,
+          featureFlagl10n: context.read<FeatureFlagl10n>(),
         ),
       ),
       BlocProvider<NotificationsBlocFactory>(
diff --git a/app/lib/settings/settings_page.dart b/app/lib/settings/settings_page.dart
index b485dec49..d7a28a121 100644
--- a/app/lib/settings/settings_page.dart
+++ b/app/lib/settings/settings_page.dart
@@ -10,6 +10,8 @@ import 'package:analytics/analytics.dart';
 import 'package:bloc_provider/bloc_provider.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/svg.dart';
+import 'package:provider/provider.dart';
+import 'package:sharezone/l10n/feature_flag_l10n.dart';
 import 'package:sharezone/legal/terms_of_service/terms_of_service_page.dart';
 import 'package:sharezone/main/application_bloc.dart';
 import 'package:sharezone/navigation/logic/navigation_bloc.dart';
@@ -146,34 +148,36 @@ class _LegalSection extends StatelessWidget {
 class _AppSettingsSection extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return const _SettingsSection(
+    final featureFlagl10n = context.watch<FeatureFlagl10n>();
+    return _SettingsSection(
       title: 'App-Einstellungen',
       children: <Widget>[
-        _SettingsOption(
+        const _SettingsOption(
           title: "Mein Konto",
           icon: Icon(Icons.account_circle),
           tag: MyProfilePage.tag,
         ),
-        _SettingsOption(
+        const _SettingsOption(
           title: "Benachrichtigungen",
           icon: Icon(Icons.notifications_active),
           tag: NotificationPage.tag,
         ),
-        _SettingsOption(
+        const _SettingsOption(
           title: "Erscheinungsbild",
           icon: Icon(Icons.color_lens),
           tag: ThemePage.tag,
         ),
-        _SettingsOption(
+        const _SettingsOption(
           title: "Stundenplan",
           icon: Icon(Icons.access_time),
           tag: TimetableSettingsPage.tag,
         ),
-        _SettingsOption(
-          title: "Sprache",
-          icon: Icon(Icons.language),
-          tag: LanguagePage.tag,
-        ),
+        if (featureFlagl10n.isl10nEnabled)
+          const _SettingsOption(
+            title: "Sprache",
+            icon: Icon(Icons.language),
+            tag: LanguagePage.tag,
+          ),
       ],
     );
   }