diff --git a/static/js/app.js b/static/js/app.js
index 15b2139..5ca46fc 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -1352,10 +1352,26 @@ if ('serviceWorker' in navigator) {
     });
   });
   // When a new SW activates it sends SW_ACTIVATED — reload to get fresh assets,
-  // but only if the reader isn't open (would interrupt reading).
+  // but never in the middle of something: not while a book is open, radio or a
+  // podcast plays, or a text field has the focus — then as soon as that's over.
+  let reloadPending = false;
+  const busy = () => {
+    if (currentBookId || isPlaying) return true;
+    const host = window.DioraPodcastHost;
+    if (host && host.playerState) {
+      try { if (JSON.parse(host.playerState()).playing) return true; } catch (_) {}
+    }
+    const el = document.activeElement;
+    return !!el && (el.isContentEditable || /^(INPUT|TEXTAREA|SELECT)$/.test(el.tagName));
+  };
+  const reloadWhenIdle = () => {
+    if (busy()) setTimeout(reloadWhenIdle, 5000);
+    else window.location.reload();
+  };
   navigator.serviceWorker.addEventListener('message', e => {
-    if (e.data?.type === 'SW_ACTIVATED' && !currentBookId) {
-      window.location.reload();
+    if (e.data?.type === 'SW_ACTIVATED' && !reloadPending) {
+      reloadPending = true;
+      reloadWhenIdle();
     }
   });
 }
diff --git a/static/js/podcasts-web.js b/static/js/podcasts-web.js
index 559192c..e9091b1 100644
--- a/static/js/podcasts-web.js
+++ b/static/js/podcasts-web.js
@@ -937,11 +937,12 @@
       : /Chrome\//.test(ua) ? 'Chrome' : /Safari\//.test(ua) ? 'Safari' : 'Web';
     const os = /Android/.test(ua) ? 'Android' : /iPhone|iPad|iPod/.test(ua) ? 'iOS' : /Windows/.test(ua) ? 'Windows'
       : /Macintosh|Mac OS X/.test(ua) ? 'macOS' : /CrOS/.test(ua) ? 'ChromeOS' : /Linux/.test(ua) ? 'Linux' : '';
-    return os ? browser + '/' + os : browser;
+    return os ? browser + ' · ' + os : browser;
   }
 
   const DEVICE_ID = deviceId();
-  const DEVICE_NAME = 'Browser (' + browserName() + ')';
+  // Short, it stands in the bar ("läuft auf Chrome · Windows").
+  const DEVICE_NAME = browserName();
 
   const sync = {
     state: null,        // the server's state, as last taken in
diff --git a/static/js/sw.js b/static/js/sw.js
index 4fb34d3..7c776ea 100644
--- a/static/js/sw.js
+++ b/static/js/sw.js
@@ -2,7 +2,7 @@
  * diora service worker — caches the app shell for offline use.
  */
 
-const CACHE = 'diora-v60';
+const CACHE = 'diora-v61';
 const SHELL = [
   '/static/css/app.css',
   '/static/js/app.js',