diff --git a/lib/screens/account/me/account_settings.dart b/lib/screens/account/me/account_settings.dart
index 6699ca81..81bb383b 100644
--- a/lib/screens/account/me/account_settings.dart
+++ b/lib/screens/account/me/account_settings.dart
@@ -84,9 +84,7 @@ class AccountSettingsScreen extends HookConsumerWidget {
         'accountPasswordChange'.tr(),
       );
       if (!confirm || !context.mounted) return;
-      final captchaTk = await Navigator.of(
-        context,
-      ).push(MaterialPageRoute(builder: (context) => CaptchaScreen()));
+      final captchaTk = await CaptchaScreen.show(context);
       if (captchaTk == null) return;
       try {
         if (context.mounted) showLoadingModal(context);
diff --git a/lib/screens/auth/captcha.native.dart b/lib/screens/auth/captcha.native.dart
index 95de74dc..694b4727 100644
--- a/lib/screens/auth/captcha.native.dart
+++ b/lib/screens/auth/captcha.native.dart
@@ -2,9 +2,17 @@ import 'package:flutter/material.dart';
 import 'package:flutter_inappwebview/flutter_inappwebview.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:island/screens/auth/captcha.config.dart';
-import 'package:island/widgets/app_scaffold.dart';
+import 'package:island/widgets/content/sheet.dart';
 
 class CaptchaScreen extends ConsumerWidget {
+  static Future<String?> show(BuildContext context) {
+    return showModalBottomSheet<String>(
+      context: context,
+      isScrollControlled: true,
+      builder: (context) => const CaptchaScreen(),
+    );
+  }
+
   const CaptchaScreen({super.key});
 
   @override
@@ -13,9 +21,9 @@ class CaptchaScreen extends ConsumerWidget {
 
     if (!captchaUrl.hasValue) return Center(child: CircularProgressIndicator());
 
-    return AppScaffold(
-      appBar: AppBar(title: Text("Anti-Robot")),
-      body: InAppWebView(
+    return SheetScaffold(
+      titleText: "Anti-Robot",
+      child: InAppWebView(
         initialUrlRequest: URLRequest(
           url: WebUri('${captchaUrl.value}?redirect_uri=solian://captcha'),
         ),
diff --git a/lib/screens/auth/captcha.web.dart b/lib/screens/auth/captcha.web.dart
index a2a172f0..997ede09 100644
--- a/lib/screens/auth/captcha.web.dart
+++ b/lib/screens/auth/captcha.web.dart
@@ -4,11 +4,19 @@ import 'dart:ui_web' as ui;
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:island/pods/config.dart';
 import 'package:island/screens/auth/captcha.config.dart';
-import 'package:island/widgets/app_scaffold.dart';
+import 'package:island/widgets/content/sheet.dart';
 import 'package:web/web.dart' as web;
 import 'package:flutter/material.dart';
 
 class CaptchaScreen extends ConsumerStatefulWidget {
+  static Future<String?> show(BuildContext context) {
+    return showModalBottomSheet<String>(
+      context: context,
+      isScrollControlled: true,
+      builder: (context) => const CaptchaScreen(),
+    );
+  }
+
   const CaptchaScreen({super.key});
 
   @override
@@ -61,9 +69,9 @@ class _CaptchaScreenState extends ConsumerState<CaptchaScreen> {
 
   @override
   Widget build(BuildContext context) {
-    return AppScaffold(
-      appBar: AppBar(title: Text("Anti-Robot")),
-      body:
+    return SheetScaffold(
+      titleText: "Anti-Robot",
+      child:
           _isInitialized
               ? HtmlElementView(viewType: 'captcha-iframe')
               : Center(child: CircularProgressIndicator()),
diff --git a/lib/screens/auth/create_account.dart b/lib/screens/auth/create_account.dart
index e9f8a280..d090090f 100644
--- a/lib/screens/auth/create_account.dart
+++ b/lib/screens/auth/create_account.dart
@@ -38,9 +38,7 @@ class CreateAccountScreen extends HookConsumerWidget {
     void performAction() async {
       if (!formKey.currentState!.validate()) return;
 
-      final captchaTk = await Navigator.of(
-        context,
-      ).push(MaterialPageRoute(builder: (context) => CaptchaScreen()));
+      final captchaTk = await CaptchaScreen.show(context);
       if (captchaTk == null) return;
 
       if (!context.mounted) return;
diff --git a/lib/screens/auth/login.dart b/lib/screens/auth/login.dart
index ff00dc33..689a6389 100644
--- a/lib/screens/auth/login.dart
+++ b/lib/screens/auth/login.dart
@@ -523,9 +523,7 @@ class _LoginLookupScreen extends HookConsumerWidget {
         showErrorAlert('loginResetPasswordHint'.tr());
         return;
       }
-      final captchaTk = await Navigator.of(
-        context,
-      ).push(MaterialPageRoute(builder: (context) => CaptchaScreen()));
+      final captchaTk = await CaptchaScreen.show(context);
       if (captchaTk == null) return;
       isBusy.value = true;
       try {
diff --git a/lib/widgets/check_in.dart b/lib/widgets/check_in.dart
index 26c4fcb1..95d7a0f2 100644
--- a/lib/widgets/check_in.dart
+++ b/lib/widgets/check_in.dart
@@ -104,9 +104,7 @@ class CheckInWidget extends HookConsumerWidget {
       } catch (err) {
         if (err is DioException) {
           if (err.response?.statusCode == 423 && context.mounted) {
-            final captchaTk = await Navigator.of(
-              context,
-            ).push(MaterialPageRoute(builder: (context) => CaptchaScreen()));
+            final captchaTk = await CaptchaScreen.show(context);
             if (captchaTk == null) return;
             return await checkIn(captchatTk: captchaTk);
           }