diff --git a/lib/app/view/app.dart b/lib/app/view/app.dart
index f621f1e2..97ef8d63 100644
--- a/lib/app/view/app.dart
+++ b/lib/app/view/app.dart
@@ -9,6 +9,7 @@ import 'package:pinball/select_character/select_character.dart';
 import 'package:pinball/start_game/start_game.dart';
 import 'package:pinball_audio/pinball_audio.dart';
 import 'package:pinball_ui/pinball_ui.dart';
+import 'package:platform_helper/platform_helper.dart';
 import 'package:share_repository/share_repository.dart';
 
 class App extends StatelessWidget {
@@ -18,16 +19,19 @@ class App extends StatelessWidget {
     required LeaderboardRepository leaderboardRepository,
     required ShareRepository shareRepository,
     required PinballAudioPlayer pinballAudioPlayer,
+    required PlatformHelper platformHelper,
   })  : _authenticationRepository = authenticationRepository,
         _leaderboardRepository = leaderboardRepository,
         _shareRepository = shareRepository,
         _pinballAudioPlayer = pinballAudioPlayer,
+        _platformHelper = platformHelper,
         super(key: key);
 
   final AuthenticationRepository _authenticationRepository;
   final LeaderboardRepository _leaderboardRepository;
   final ShareRepository _shareRepository;
   final PinballAudioPlayer _pinballAudioPlayer;
+  final PlatformHelper _platformHelper;
 
   @override
   Widget build(BuildContext context) {
@@ -37,6 +41,7 @@ class App extends StatelessWidget {
         RepositoryProvider.value(value: _leaderboardRepository),
         RepositoryProvider.value(value: _shareRepository),
         RepositoryProvider.value(value: _pinballAudioPlayer),
+        RepositoryProvider.value(value: _platformHelper),
       ],
       child: MultiBlocProvider(
         providers: [
diff --git a/lib/game/components/backbox/backbox.dart b/lib/game/components/backbox/backbox.dart
index dad2c118..723c1f88 100644
--- a/lib/game/components/backbox/backbox.dart
+++ b/lib/game/components/backbox/backbox.dart
@@ -27,23 +27,19 @@ class Backbox extends PositionComponent with ZIndex, HasGameRef {
           leaderboardRepository: leaderboardRepository,
           initialEntries: entries,
         ),
-        _shareRepository = shareRepository,
-        _platformHelper = PlatformHelper();
+        _shareRepository = shareRepository;
 
   /// {@macro backbox}
   @visibleForTesting
   Backbox.test({
     required BackboxBloc bloc,
     required ShareRepository shareRepository,
-    required PlatformHelper platformHelper,
   })  : _bloc = bloc,
-        _shareRepository = shareRepository,
-        _platformHelper = platformHelper;
+        _shareRepository = shareRepository;
 
   final ShareRepository _shareRepository;
   late final Component _display;
   final BackboxBloc _bloc;
-  final PlatformHelper _platformHelper;
   late StreamSubscription<BackboxState> _subscription;
 
   @override
@@ -76,7 +72,7 @@ class Backbox extends PositionComponent with ZIndex, HasGameRef {
     } else if (state is LeaderboardFailureState) {
       _display.add(LeaderboardFailureDisplay());
     } else if (state is InitialsFormState) {
-      if (_platformHelper.isMobile) {
+      if (readProvider<PlatformHelper>().isMobile) {
         gameRef.overlays.add(PinballGame.mobileControlsOverlay);
       }
       _display.add(
diff --git a/lib/game/view/pinball_game_page.dart b/lib/game/view/pinball_game_page.dart
index ffa9498a..efc11996 100644
--- a/lib/game/view/pinball_game_page.dart
+++ b/lib/game/view/pinball_game_page.dart
@@ -28,7 +28,7 @@ class PinballGamePage extends StatelessWidget {
     final audioPlayer = context.read<PinballAudioPlayer>();
     final leaderboardRepository = context.read<LeaderboardRepository>();
     final shareRepository = context.read<ShareRepository>();
-    final platformHelper = PlatformHelper();
+    final platformHelper = context.read<PlatformHelper>();
     final gameBloc = context.read<GameBloc>();
     final game = isDebugMode
         ? DebugPinballGame(
diff --git a/lib/how_to_play/widgets/how_to_play_dialog.dart b/lib/how_to_play/widgets/how_to_play_dialog.dart
index 8a709605..6c8c3f13 100644
--- a/lib/how_to_play/widgets/how_to_play_dialog.dart
+++ b/lib/how_to_play/widgets/how_to_play_dialog.dart
@@ -50,14 +50,11 @@ extension on Control {
 }
 
 class HowToPlayDialog extends StatefulWidget {
-  HowToPlayDialog({
+  const HowToPlayDialog({
     Key? key,
     required this.onDismissCallback,
-    @visibleForTesting PlatformHelper? platformHelper,
-  })  : platformHelper = platformHelper ?? PlatformHelper(),
-        super(key: key);
+  }) : super(key: key);
 
-  final PlatformHelper platformHelper;
   final VoidCallback onDismissCallback;
 
   @override
@@ -85,7 +82,7 @@ class _HowToPlayDialogState extends State<HowToPlayDialog> {
 
   @override
   Widget build(BuildContext context) {
-    final isMobile = widget.platformHelper.isMobile;
+    final isMobile = context.read<PlatformHelper>().isMobile;
     final l10n = context.l10n;
 
     return WillPopScope(
diff --git a/lib/main.dart b/lib/main.dart
index cb8c78da..877843ee 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -6,6 +6,7 @@ import 'package:leaderboard_repository/leaderboard_repository.dart';
 import 'package:pinball/app/app.dart';
 import 'package:pinball/bootstrap.dart';
 import 'package:pinball_audio/pinball_audio.dart';
+import 'package:platform_helper/platform_helper.dart';
 import 'package:share_repository/share_repository.dart';
 
 void main() {
@@ -15,6 +16,7 @@ void main() {
         ShareRepository(appUrl: ShareRepository.pinballGameUrl);
     final authenticationRepository = AuthenticationRepository(firebaseAuth);
     final pinballAudioPlayer = PinballAudioPlayer();
+    final platformHelper = PlatformHelper();
     unawaited(
       Firebase.initializeApp().then(
         (_) => authenticationRepository.authenticateAnonymously(),
@@ -25,6 +27,7 @@ void main() {
       leaderboardRepository: leaderboardRepository,
       shareRepository: shareRepository,
       pinballAudioPlayer: pinballAudioPlayer,
+      platformHelper: platformHelper,
     );
   });
 }
diff --git a/test/app/view/app_test.dart b/test/app/view/app_test.dart
index d247a562..b9f2ef16 100644
--- a/test/app/view/app_test.dart
+++ b/test/app/view/app_test.dart
@@ -5,6 +5,7 @@ import 'package:mocktail/mocktail.dart';
 import 'package:pinball/app/app.dart';
 import 'package:pinball/game/game.dart';
 import 'package:pinball_audio/pinball_audio.dart';
+import 'package:platform_helper/platform_helper.dart';
 import 'package:share_repository/share_repository.dart';
 
 class _MockAuthenticationRepository extends Mock
@@ -17,18 +18,25 @@ class _MockLeaderboardRepository extends Mock implements LeaderboardRepository {
 
 class _MockShareRepository extends Mock implements ShareRepository {}
 
+class _MockPlatformHelper extends Mock implements PlatformHelper {
+  @override
+  bool get isMobile => false;
+}
+
 void main() {
   group('App', () {
     late AuthenticationRepository authenticationRepository;
     late LeaderboardRepository leaderboardRepository;
     late ShareRepository shareRepository;
     late PinballAudioPlayer pinballAudioPlayer;
+    late PlatformHelper platformHelper;
 
     setUp(() {
       authenticationRepository = _MockAuthenticationRepository();
       leaderboardRepository = _MockLeaderboardRepository();
       shareRepository = _MockShareRepository();
       pinballAudioPlayer = _MockPinballAudioPlayer();
+      platformHelper = _MockPlatformHelper();
       when(pinballAudioPlayer.load).thenAnswer((_) => [Future.value()]);
     });
 
@@ -39,6 +47,7 @@ void main() {
           leaderboardRepository: leaderboardRepository,
           shareRepository: shareRepository,
           pinballAudioPlayer: pinballAudioPlayer,
+          platformHelper: platformHelper,
         ),
       );
       await tester.pump(const Duration(milliseconds: 1100));
diff --git a/test/game/components/backbox/backbox_test.dart b/test/game/components/backbox/backbox_test.dart
index b99b86ab..61b0907e 100644
--- a/test/game/components/backbox/backbox_test.dart
+++ b/test/game/components/backbox/backbox_test.dart
@@ -45,13 +45,23 @@ class _TestGame extends Forge2DGame
     ]);
   }
 
-  Future<void> pump(Backbox component) {
+  Future<void> pump(
+    Backbox component, {
+    PlatformHelper? platformHelper,
+  }) {
     return ensureAdd(
       FlameBlocProvider<GameBloc, GameState>.value(
         value: GameBloc(),
         children: [
-          FlameProvider.value(
-            _MockAppLocalizations(),
+          MultiFlameProvider(
+            providers: [
+              FlameProvider<AppLocalizations>.value(
+                _MockAppLocalizations(),
+              ),
+              FlameProvider<PlatformHelper>.value(
+                platformHelper ?? _MockPlatformHelper(),
+              ),
+            ],
             children: [component],
           ),
         ],
@@ -186,9 +196,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
         expect(game.descendants(), contains(backbox));
       },
     );
@@ -204,8 +216,8 @@ void main() {
           Backbox.test(
             bloc: bloc,
             shareRepository: _MockShareRepository(),
-            platformHelper: platformHelper,
           ),
+          platformHelper: platformHelper,
         );
         await tester.pump();
       },
@@ -226,9 +238,11 @@ void main() {
             initialEntries: [LeaderboardEntryData.empty],
           ),
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
         backbox.requestInitials(
           score: 0,
           character: game.character,
@@ -258,9 +272,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         game.onKeyEvent(_mockKeyUp(LogicalKeyboardKey.enter), {});
         verify(
@@ -287,9 +303,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         expect(
           game.descendants().whereType<GameOverInfoDisplay>().length,
@@ -317,9 +335,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         expect(
           game.overlays.value,
@@ -344,9 +364,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         expect(
           game.overlays.value,
@@ -367,9 +389,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         expect(
           game.descendants().whereType<GameOverInfoDisplay>().length,
@@ -390,9 +414,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         final shareLink =
             game.descendants().whereType<ShareLinkComponent>().first;
@@ -420,9 +446,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         expect(
           game
@@ -452,9 +480,11 @@ void main() {
           final backbox = Backbox.test(
             bloc: bloc,
             shareRepository: _MockShareRepository(),
+          );
+          await game.pump(
+            backbox,
             platformHelper: platformHelper,
           );
-          await game.pump(backbox);
 
           expect(
             game.descendants().whereType<ShareDisplay>().length,
@@ -499,9 +529,11 @@ void main() {
           final backbox = Backbox.test(
             bloc: bloc,
             shareRepository: shareRepository,
+          );
+          await game.pump(
+            backbox,
             platformHelper: platformHelper,
           );
-          await game.pump(backbox);
 
           final facebookButton =
               game.descendants().whereType<FacebookButtonComponent>().first;
@@ -553,9 +585,11 @@ void main() {
           final backbox = Backbox.test(
             bloc: bloc,
             shareRepository: shareRepository,
+          );
+          await game.pump(
+            backbox,
             platformHelper: platformHelper,
           );
-          await game.pump(backbox);
 
           final facebookButton =
               game.descendants().whereType<TwitterButtonComponent>().first;
@@ -585,9 +619,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         expect(
           game.descendants().whereType<LeaderboardDisplay>().length,
@@ -608,9 +644,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         expect(
           game.descendants().whereType<LeaderboardFailureDisplay>().length,
@@ -632,9 +670,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
 
         backbox.removeFromParent();
         await game.ready();
@@ -673,9 +713,11 @@ void main() {
         final backbox = Backbox.test(
           bloc: bloc,
           shareRepository: _MockShareRepository(),
+        );
+        await game.pump(
+          backbox,
           platformHelper: platformHelper,
         );
-        await game.pump(backbox);
         game.update(4);
 
         verify(
diff --git a/test/helpers/pump_app.dart b/test/helpers/pump_app.dart
index df75efae..d136487c 100644
--- a/test/helpers/pump_app.dart
+++ b/test/helpers/pump_app.dart
@@ -12,6 +12,7 @@ import 'package:pinball/select_character/select_character.dart';
 import 'package:pinball/start_game/start_game.dart';
 import 'package:pinball_audio/pinball_audio.dart';
 import 'package:pinball_ui/pinball_ui.dart';
+import 'package:platform_helper/platform_helper.dart';
 import 'package:share_repository/share_repository.dart';
 
 class _MockAssetsManagerCubit extends Mock implements AssetsManagerCubit {}
@@ -29,6 +30,8 @@ class _MockStartGameBloc extends Mock implements StartGameBloc {}
 
 class _MockPinballAudioPlayer extends Mock implements PinballAudioPlayer {}
 
+class _MockPlatformHelper extends Mock implements PlatformHelper {}
+
 PinballAudioPlayer _buildDefaultPinballAudioPlayer() {
   final audioPlayer = _MockPinballAudioPlayer();
   when(audioPlayer.load).thenAnswer((_) => [Future.value()]);
@@ -60,6 +63,7 @@ extension PumpApp on WidgetTester {
     LeaderboardRepository? leaderboardRepository,
     ShareRepository? shareRepository,
     PinballAudioPlayer? pinballAudioPlayer,
+    PlatformHelper? platformHelper,
   }) {
     return runAsync(() {
       return pumpWidget(
@@ -74,6 +78,9 @@ extension PumpApp on WidgetTester {
             RepositoryProvider.value(
               value: pinballAudioPlayer ?? _buildDefaultPinballAudioPlayer(),
             ),
+            RepositoryProvider.value(
+              value: platformHelper ?? _MockPlatformHelper(),
+            ),
           ],
           child: MultiBlocProvider(
             providers: [
diff --git a/test/how_to_play/how_to_play_dialog_test.dart b/test/how_to_play/how_to_play_dialog_test.dart
index c6e60d73..78e793cb 100644
--- a/test/how_to_play/how_to_play_dialog_test.dart
+++ b/test/how_to_play/how_to_play_dialog_test.dart
@@ -17,27 +17,23 @@ void main() {
     setUp(() async {
       l10n = await AppLocalizations.delegate.load(const Locale('en'));
       platformHelper = _MockPlatformHelper();
+      when(() => platformHelper.isMobile).thenAnswer((_) => false);
     });
 
-    testWidgets(
-      'can be instantiated without passing in a platform helper',
-      (tester) async {
-        await tester.pumpApp(
-          HowToPlayDialog(
-            onDismissCallback: () {},
-          ),
-        );
-        expect(find.byType(HowToPlayDialog), findsOneWidget);
-      },
-    );
+    test('can be instantiated', () {
+      expect(
+        HowToPlayDialog(onDismissCallback: () {}),
+        isA<HowToPlayDialog>(),
+      );
+    });
 
     testWidgets('displays content for desktop', (tester) async {
       when(() => platformHelper.isMobile).thenAnswer((_) => false);
       await tester.pumpApp(
         HowToPlayDialog(
-          platformHelper: platformHelper,
           onDismissCallback: () {},
         ),
+        platformHelper: platformHelper,
       );
       expect(find.text(l10n.howToPlay), findsOneWidget);
       expect(find.text(l10n.tipsForFlips), findsOneWidget);
@@ -50,9 +46,9 @@ void main() {
       when(() => platformHelper.isMobile).thenAnswer((_) => true);
       await tester.pumpApp(
         HowToPlayDialog(
-          platformHelper: platformHelper,
           onDismissCallback: () {},
         ),
+        platformHelper: platformHelper,
       );
       expect(find.text(l10n.howToPlay), findsOneWidget);
       expect(find.text(l10n.tipsForFlips), findsOneWidget);
@@ -75,6 +71,7 @@ void main() {
             );
           },
         ),
+        platformHelper: platformHelper,
       );
       expect(find.byType(HowToPlayDialog), findsNothing);
       await tester.tap(find.text('test'));
@@ -100,6 +97,7 @@ void main() {
             );
           },
         ),
+        platformHelper: platformHelper,
       );
       expect(find.byType(HowToPlayDialog), findsNothing);
       await tester.tap(find.text('test'));