diff --git a/src/features/slop/ui/slop-camera.tsx b/src/features/slop/ui/slop-camera.tsx
index c566443..f9902d0 100644
--- a/src/features/slop/ui/slop-camera.tsx
+++ b/src/features/slop/ui/slop-camera.tsx
@@ -1,10 +1,9 @@
 import React, { useEffect, useRef } from 'react';
 import { createPortal } from 'react-dom';
-import { toast } from 'sonner';
 import type { Position, Webcam } from '@/entities/slop/model/model';
 import ArrowRightIcon from '@/shared/icons/arrow-right';
-import NeutralFace from '@/shared/icons/neutral-face';
 import { cn } from '@/shared/lib';
+import postAppMessage from '@/shared/lib/postAppMessage';
 import CameraButton from '@/shared/ui/cam-button';
 import { Tooltip } from '@/shared/ui/tooltip';
 import useSlopStore from '../hooks/useSlopStore';
@@ -45,11 +44,7 @@ const SlopCamera = ({
     setOpenCamera();
 
     if (!src) {
-      toast(
-        <>
-          <NeutralFace /> 선택한 웹캠은 아직 준비중 이에요
-        </>
-      );
+      postAppMessage('선택한 웹캠은 아직 준비중 이에요');
     }
   };
 
diff --git a/src/shared/lib/postAppMessage.ts b/src/shared/lib/postAppMessage.ts
new file mode 100644
index 0000000..616b458
--- /dev/null
+++ b/src/shared/lib/postAppMessage.ts
@@ -0,0 +1,34 @@
+declare global {
+  interface Window {
+    BRIDGE: {
+      sendMessage: (message: string) => void;
+    };
+    webkit: {
+      messageHandlers: {
+        weski: {
+          showToast: (message: string) => void;
+        };
+      };
+    };
+  }
+}
+
+const postAppMessage = (message: string) => {
+  const userAgent = navigator.userAgent;
+  const android = userAgent.match(/Android/i);
+  const iphone = userAgent.match(/iPhone/i);
+    
+  if (android !== null) {
+    console.log("Android");
+    return window.BRIDGE.sendMessage(message);
+
+  } else if (iphone !== null) {
+    console.log("iOS");
+    return window.webkit.messageHandlers.weski.showToast(message);
+  
+  } else {
+    return window.opener.postMessage(message);
+  }
+}
+
+export default postAppMessage;
\ No newline at end of file