diff --git a/public/favicon.ico b/public/favicon.ico
new file mode 100644
index 0000000..26c6f48
Binary files /dev/null and b/public/favicon.ico differ
diff --git a/public/icons/apple-touch-icon.png b/public/icons/apple-touch-icon.png
new file mode 100644
index 0000000..a26d81f
Binary files /dev/null and b/public/icons/apple-touch-icon.png differ
diff --git a/public/icons/favicon-32.png b/public/icons/favicon-32.png
new file mode 100644
index 0000000..22c2853
Binary files /dev/null and b/public/icons/favicon-32.png differ
diff --git a/public/icons/icon-192.png b/public/icons/icon-192.png
new file mode 100644
index 0000000..01e8ae3
Binary files /dev/null and b/public/icons/icon-192.png differ
diff --git a/public/icons/icon-512.png b/public/icons/icon-512.png
new file mode 100644
index 0000000..99f8a4a
Binary files /dev/null and b/public/icons/icon-512.png differ
diff --git a/public/index.html b/public/index.html
index a3d2658..4e447d6 100644
--- a/public/index.html
+++ b/public/index.html
@@ -9,7 +9,9 @@
 
   <!-- PWA -->
   <link rel="manifest" href="/manifest.json" />
-  <link rel="apple-touch-icon" href="/icons/icon-192.png" />
+  <link rel="apple-touch-icon" href="/icons/apple-touch-icon.png" />
+  <link rel="icon" type="image/x-icon" href="/favicon.ico" />
+  <link rel="icon" type="image/png" sizes="32x32" href="/icons/favicon-32.png" />
 
   <!-- DNS-Prefetch + Preconnect für externe Ressourcen -->
   <link rel="preconnect" href="https://unpkg.com" crossorigin />
diff --git a/public/manifest.json b/public/manifest.json
index 5941b72..12e0eb7 100644
--- a/public/manifest.json
+++ b/public/manifest.json
@@ -20,6 +20,12 @@
       "sizes": "512x512",
       "type": "image/png",
       "purpose": "any maskable"
+    },
+    {
+      "src": "/icons/apple-touch-icon.png",
+      "sizes": "180x180",
+      "type": "image/png",
+      "purpose": "any"
     }
   ]
 }
diff --git a/public/sw.js b/public/sw.js
index af1e41c..07e04ff 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -12,9 +12,9 @@
  *   API: Immer Netzwerk (kein Caching von Nutzerdaten)
  */
 
-const SHELL_CACHE   = 'oikos-shell-v3';
-const PAGES_CACHE   = 'oikos-pages-v3';
-const ASSETS_CACHE  = 'oikos-assets-v3';
+const SHELL_CACHE   = 'oikos-shell-v4';
+const PAGES_CACHE   = 'oikos-pages-v4';
+const ASSETS_CACHE  = 'oikos-assets-v4';
 const ALL_CACHES    = [SHELL_CACHE, PAGES_CACHE, ASSETS_CACHE];
 
 // App-Shell: sofort benötigt für ersten Render
@@ -37,6 +37,9 @@ const APP_SHELL = [
   '/styles/budget.css',
   '/styles/settings.css',
   '/manifest.json',
+  '/favicon.ico',
+  '/icons/favicon-32.png',
+  '/icons/apple-touch-icon.png',
 ];
 
 // Seiten-Module: lazy geladen, aber vorab gecacht für Offline