diff --git a/index.html b/index.html
index 3d12570..453ab50 100644
--- a/index.html
+++ b/index.html
@@ -189,15 +189,13 @@
 
       // Hide the installation button once the app is installed
       document.getElementById('installButton').style.display = 'none';
-      
-      // Hide the installation instructions once the app is installed
-      document.getElementById('install-instructions').style.display = 'none';
     }
 
     // Show installation instructions only if app is not already installed
-    if (!window.matchMedia('(display-mode: standalone)').matches) {
+    window.addEventListener('beforeinstallprompt', (event) => {
+      event.preventDefault();
       document.getElementById('install-instructions').style.display = 'block';
-    }
+    });
   </script>
 </body>
 </html>
diff --git a/manifest.json b/manifest.json
index 0bcb664..39192b8 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,11 +1,17 @@
 {
-    "name": "EUR-DZD",
-    "short_name": "EUR DZD",
+    "name": "EUR-DZD Calculator",
+    "short_name": "EUR-DZD",
+    "description": "Convert Euro to Algerian Dinar and vice versa.",
     "icons": [
       {
         "src": "icon.png",
         "sizes": "192x192",
         "type": "image/png"
+      },
+      {
+        "src": "icon.png",
+        "sizes": "512x512",
+        "type": "image/png"
       }
     ],
     "start_url": "/index.html",
@@ -13,5 +19,4 @@
     "background_color": "#f5f5f5",
     "theme_color": "#4CAF50"
   }
-  
   
\ No newline at end of file
diff --git a/service-worker.js b/service-worker.js
index db1dba7..402b81a 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -1,48 +1,29 @@
 const CACHE_NAME = 'eur-dzd-calculator-v1';
+const urlsToCache = [
+  '/',
+  '/index.html',
+  '/icon.png',
+  '/manifest.json',
+  // Add more URLs of assets to cache here
+];
 
-self.addEventListener('install', function(event) {
+self.addEventListener('install', event => {
   event.waitUntil(
     caches.open(CACHE_NAME)
-      .then(function(cache) {
-        return cache.addAll([
-          '/index.html',
-          '/manifest.json',
-          '/icon.png',
-          '/style.css',
-          '/script.js',
-        ]);
-      })
+      .then(cache => cache.addAll(urlsToCache))
+      .catch(error => console.error('Error caching assets:', error))
   );
 });
 
-self.addEventListener('fetch', function(event) {
+self.addEventListener('fetch', event => {
   event.respondWith(
     caches.match(event.request)
-      .then(function(response) {
+      .then(response => {
         if (response) {
-          return response;
+          return response; // Serve cached asset if available
         }
-        
-        let fetchRequest = event.request.clone();
-
-        return fetch(fetchRequest)
-          .then(function(response) {
-            if (!response || response.status !== 200 || response.type !== 'basic') {
-              return response;
-            }
-
-            let responseToCache = response.clone();
-
-            caches.open(CACHE_NAME)
-              .then(function(cache) {
-                cache.put(event.request, responseToCache);
-              });
-
-            return response;
-          })
-          .catch(function(error) {
-            console.error('Error fetching and caching:', error);
-          });
+        return fetch(event.request); // Otherwise, fetch from network
       })
+      .catch(error => console.error('Error fetching asset:', error))
   );
 });