diff --git a/lib/flavored/models/humhub.f.dart b/lib/flavored/models/humhub.f.dart
index 1250a32..e79a0d2 100644
--- a/lib/flavored/models/humhub.f.dart
+++ b/lib/flavored/models/humhub.f.dart
@@ -27,7 +27,9 @@ class HumHubF extends HumHub {
         'x-humhub-app-token': randomHash!,
         'x-humhub-app': appVersion ?? '1.0.0',
         'x-humhub-app-bundle-id': bundleId,
-        'x-humhub-app-ostate': isHideOpener ? '1' : '0'
+        'x-humhub-app-ostate': isHideOpener ? '1' : '0',
+        'x-humhub-app-is-ios': isIos ? '1' : '0',
+        'x-humhub-app-is-android': isAndroid ? '1' : '0'
       };
 
   static Future<HumHubF> initialize() async {
diff --git a/lib/flavored/web_view.f.dart b/lib/flavored/web_view.f.dart
index cdea1b3..8a1ed3c 100644
--- a/lib/flavored/web_view.f.dart
+++ b/lib/flavored/web_view.f.dart
@@ -113,6 +113,7 @@ class FlavoredWebViewState extends ConsumerState<WebViewF> {
     // 1st check if url is not def. app url and open it in a browser or inApp.
     WebViewGlobalController.ajaxSetHeaders(headers: instance.customHeaders);
     WebViewGlobalController.listenToImageOpen();
+    WebViewGlobalController.appendViewportFitCover();
     final url = action.request.url!.rawValue;
 
     /// First BLOCK everything that rules out as blocked.
@@ -188,12 +189,14 @@ class FlavoredWebViewState extends ConsumerState<WebViewF> {
     }
     WebViewGlobalController.ajaxSetHeaders(headers: instance.customHeaders);
     WebViewGlobalController.listenToImageOpen();
+    WebViewGlobalController.appendViewportFitCover();
     LoadingProvider.of(ref).dismissAll();
   }
 
   void _onLoadStart(InAppWebViewController controller, Uri? url) async {
     WebViewGlobalController.ajaxSetHeaders(headers: instance.customHeaders);
     WebViewGlobalController.listenToImageOpen();
+    WebViewGlobalController.appendViewportFitCover();
   }
 
   void _onLoadError(InAppWebViewController controller, WebResourceRequest request, WebResourceError error) async {
diff --git a/lib/models/hum_hub.dart b/lib/models/hum_hub.dart
index cafb177..154789c 100644
--- a/lib/models/hum_hub.dart
+++ b/lib/models/hum_hub.dart
@@ -1,3 +1,4 @@
+import 'dart:io';
 import 'dart:math';
 import 'package:flutter/material.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
@@ -15,6 +16,8 @@ class HumHub {
   String? randomHash;
   String? appVersion;
   String? pushToken;
+  final bool isIos = Platform.isIOS || Platform.isMacOS;
+  final bool isAndroid = Platform.isAndroid;
 
   HumHub(
       {this.manifest, this.manifestUrl, this.isHideOpener = false, this.randomHash, this.appVersion, this.pushToken});
@@ -65,7 +68,9 @@ class HumHub {
   Map<String, String> get customHeaders => {
         'x-humhub-app-token': randomHash!,
         'x-humhub-app': appVersion ?? '1.0.0',
-        'x-humhub-app-ostate': isHideOpener ? '1' : '0'
+        'x-humhub-app-ostate': isHideOpener ? '1' : '0',
+        'x-humhub-app-is-ios': isIos ? '1' : '0',
+        'x-humhub-app-is-android': isAndroid ? '1' : '0'
       };
 
   static Future<Widget> app(String bundleId) async {
diff --git a/lib/pages/web_view.dart b/lib/pages/web_view.dart
index a1271c2..445e2b2 100644
--- a/lib/pages/web_view.dart
+++ b/lib/pages/web_view.dart
@@ -139,6 +139,7 @@ class WebViewAppState extends ConsumerState<WebView> {
     WebViewGlobalController.ajaxSetHeaders(
         headers: ref.read(humHubProvider).customHeaders);
     WebViewGlobalController.listenToImageOpen();
+    WebViewGlobalController.appendViewportFitCover();
 
     final url = action.request.url!.rawValue;
 
@@ -232,6 +233,7 @@ class WebViewAppState extends ConsumerState<WebView> {
     WebViewGlobalController.ajaxSetHeaders(
         headers: ref.read(humHubProvider).customHeaders);
     WebViewGlobalController.listenToImageOpen();
+    WebViewGlobalController.appendViewportFitCover();
     LoadingProvider.of(ref).dismissAll();
   }
 
@@ -239,6 +241,7 @@ class WebViewAppState extends ConsumerState<WebView> {
     WebViewGlobalController.ajaxSetHeaders(
         headers: ref.read(humHubProvider).customHeaders);
     WebViewGlobalController.listenToImageOpen();
+    WebViewGlobalController.appendViewportFitCover();
   }
 
   _onProgressChanged(InAppWebViewController controller, int progress) {
diff --git a/lib/util/web_view_global_controller.dart b/lib/util/web_view_global_controller.dart
index 7db2446..6865d64 100644
--- a/lib/util/web_view_global_controller.dart
+++ b/lib/util/web_view_global_controller.dart
@@ -20,8 +20,7 @@ class WebViewGlobalController {
   /// [ref] is reference to the app state.
   /// [url] is the URL to evaluate.
   /// @return `true` if the URL should open in a new window, `false` otherwise.
-  static bool openCreateWindowInWebView(
-      {required String url, required Manifest manifest}) {
+  static bool openCreateWindowInWebView({required String url, required Manifest manifest}) {
     String? baseUrl = manifest.baseUrl;
     if (url.startsWith('$baseUrl/file/file/download')) return true;
     if (url.startsWith('$baseUrl/u')) return true;
@@ -33,10 +32,7 @@ class WebViewGlobalController {
     _value = newValue;
   }
 
-  static void ajaxPost(
-      {required String url,
-      required String data,
-      Map<String, String>? headers}) {
+  static void ajaxPost({required String url, required String data, Map<String, String>? headers}) {
     String jsonHeaders = jsonEncode(headers);
     String jsCode4 = """
           \$.ajax({
@@ -51,18 +47,14 @@ class WebViewGlobalController {
   }
 
   static void ajaxSetHeaders({Map<String, String>? headers}) {
-    String jsCode =
-        "\$.ajaxSetup({headers: ${jsonEncode(headers).toString()}});";
+    String jsCode = "\$.ajaxSetup({headers: ${jsonEncode(headers).toString()}});";
     value?.evaluateJavascript(source: jsCode);
   }
 
-  static void onLongPressHitTestResult(InAppWebViewController controller,
-      InAppWebViewHitTestResult hitResult) async {
+  static void onLongPressHitTestResult(InAppWebViewController controller, InAppWebViewHitTestResult hitResult) async {
     if (hitResult.extra != null &&
-        ([
-          InAppWebViewHitTestResultType.SRC_ANCHOR_TYPE,
-          InAppWebViewHitTestResultType.EMAIL_TYPE
-        ].contains(hitResult.type))) {
+        ([InAppWebViewHitTestResultType.SRC_ANCHOR_TYPE, InAppWebViewHitTestResultType.EMAIL_TYPE]
+            .contains(hitResult.type))) {
       Clipboard.setData(
         ClipboardData(text: hitResult.extra!),
       );
@@ -119,6 +111,22 @@ class WebViewGlobalController {
     );
   }
 
+  static void appendViewportFitCover() {
+    value?.evaluateJavascript(source: """
+    (function() {
+      var metaTags = document.getElementsByTagName('meta');
+      for (var i = 0; i < metaTags.length; i++) {
+        if (metaTags[i].name.toLowerCase() === 'viewport') {
+          var content = metaTags[i].content;
+          if (!content.includes('viewport-fit=cover')) {
+            metaTags[i].content = content + ', viewport-fit=cover';
+          }
+        }
+      }
+    })();
+  """);
+  }
+
   static InAppWebViewSettings settings({bool zoom = false}) {
     return InAppWebViewSettings(
       useShouldOverrideUrlLoading: true,