diff --git a/index.html b/index.html
index 2a93a4d..95625f0 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,6 @@
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
   <title>Chromatone Spectrogram</title>
-  <link rel="icon" type="image/svg+xml" href="./logo.svg">
   <meta name="theme-color" content="black">
   <meta name="application-name" content="Spectrogram">
   <meta name="author" content="Denis Starov">
@@ -27,9 +26,12 @@
   <meta name="twitter:image" content="/spectrogram.png">
 
   <meta name="mobile-web-app-capable" content="yes">
+  <meta name="apple-touch-fullscreen" content="yes">
   <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
   <meta name="apple-mobile-web-app-title" content="Spectrogram">
-  <link rel="apple-touch-icon" href="./icon.png" sizes="any">
+
+  <link rel="icon" type="image/svg+xml" href="./logo.svg">
+  <link rel="apple-touch-icon" href="./icon.png" sizes="512x512">
 
   <link rel="manifest" href="./manifest.json">