iPhone
Keep your iPhone's screen on, in Safari.
Works directly in Safari on iOS 16.4 and later — no App Store download, no Shortcuts automation to set up.
Pick a duration and hit start.
Duration
iOS's own Auto-Lock setting, and a real caveat
iOS lets you extend (but not fully disable) the screen-lock timer underSettings → Display & Brightness → Auto-Lock, up to 5 minutes, or "Never" on some iOS versions. That's a permanent, device-wide change.Guided Access (Settings → Accessibility) is Apple's own built-in way to pin the screen on one app indefinitely, which is the closest native equivalent to what this tool does for a single tab.
One specific, accurate caveat worth knowing: if you add this page to your iPhone's Home Screen as a standalone web app, the wake lock doesn't work reliably in that mode on iOS versions before 18.4 — it's a known limitation of how Safari implemented the API for home-screen apps specifically. Using it as a normal Safari tab (not added to your Home Screen) works correctly on any iOS 16.4+ device regardless of version.
FAQ
- What iOS version do I need?
- iOS 16.4 or later for Safari as a regular tab. If you've added this page to your Home Screen specifically, you'll want iOS 18.4+ for it to work reliably there too.
- Does this work in Chrome or Firefox for iOS?
- No — every browser on iOS uses Apple's WebKit engine under the hood (it's an App Store requirement), so support follows Safari's version requirements regardless of which browser app you're using.