diff --git a/lib/services/ai/ai_api_service.dart b/lib/services/ai/ai_api_service.dart
index 28dc5ac..1fd3999 100644
--- a/lib/services/ai/ai_api_service.dart
+++ b/lib/services/ai/ai_api_service.dart
@@ -72,7 +72,7 @@ class AiApiService {
 
       mimeType = file.isAudio()
           ? file.isRecorded
-              ? 'audio/${kIsWeb && AppInitializer.getOperatingSystem() == 'iOS' ? 'webm' : 'm4a'}'
+              ? 'audio/m4a}'
               : 'audio/${file.extname.replaceAll('.', '')}'
           : file.isImage()
               ? 'image/png'
diff --git a/lib/services/app_initalizer.dart b/lib/services/app_initalizer.dart
index ca1a80b..5ee22c8 100644
--- a/lib/services/app_initalizer.dart
+++ b/lib/services/app_initalizer.dart
@@ -16,7 +16,6 @@ import 'package:flutter/material.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:provider/provider.dart';
 import 'package:url_launcher/url_launcher_string.dart';
-import 'dart:html' as html;
 
 class AppInitializer {
   static String? fcmToken;
@@ -42,24 +41,6 @@ class AppInitializer {
     });
   }
 
-  static String getOperatingSystem() {
-    final userAgent = html.window.navigator.userAgent.toLowerCase();
-
-    if (userAgent.contains('windows')) {
-      return 'Windows';
-    } else if (userAgent.contains('mac os')) {
-      return 'MacOS';
-    } else if (userAgent.contains('iphone') || userAgent.contains('ipad')) {
-      return 'iOS';
-    } else if (userAgent.contains('android')) {
-      return 'Android';
-    } else if (userAgent.contains('linux')) {
-      return 'Linux';
-    } else {
-      return 'Unknown';
-    }
-  }
-
   static Future<SettingsData> initilizeSettings() async {
     try {
       final brightness = await StorageService.getValue(key: 'brightness');
diff --git a/lib/services/notification/firebase_api.dart b/lib/services/notification/firebase_api.dart
index 7bee444..3759cf0 100644
--- a/lib/services/notification/firebase_api.dart
+++ b/lib/services/notification/firebase_api.dart
@@ -75,13 +75,6 @@ class FirebaseApi {
     if (kDebugMode) {
       print("forground: ${NotificationData.fromJson(message.data).toJson()}");
     }
-    const platform = MethodChannel('com.didvan.didvanapp/notification');
-
-    await platform.invokeMethod('showNotification', {
-      'title': message.notification!.title,
-      'message': message.notification!.body
-    });
-
     // }
     try {
       await NotificationService.showFirebaseNotification(message);
diff --git a/lib/views/ai/widgets/ai_message_bar.dart b/lib/views/ai/widgets/ai_message_bar.dart
index 5ed6476..7d0ad4e 100644
--- a/lib/views/ai/widgets/ai_message_bar.dart
+++ b/lib/views/ai/widgets/ai_message_bar.dart
@@ -348,7 +348,7 @@ class _AiMessageBarState extends State<AiMessageBar> {
                                                           state.file = FilesModel(
                                                               path.toString(),
                                                               name:
-                                                                  '${DateTime.now().millisecondsSinceEpoch ~/ 1000}.${kIsWeb && AppInitializer.getOperatingSystem() == 'iOS' ? 'webm' : 'm4a'}',
+                                                                  '${DateTime.now().millisecondsSinceEpoch ~/ 1000}.m4a',
                                                               isRecorded: true,
                                                               audio: true,
                                                               image: false,