A flat two-tone horizon under a low sun wavers in rising heat haze; just below the line a thin mirage mirrors the sky, swelling and fading with the shimmer.
A flat two-tone horizon under a low sun wavers in rising heat haze; just below the line a thin mirage mirrors the sky, swelling and fading with the shimmer.
In the app you can adjust the colours, speed and shimmer. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.
Use it on your Mac
- Get SCRNSVRS free from the Mac App Store.
- Select Heat Shimmer in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Preview free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Heat Shimmer FAQ
How do I set Heat Shimmer as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Heat Shimmer in the library and click Set as Screensaver. macOS starts it whenever your Mac is idle, exactly like a built-in screensaver.
Can I use Heat Shimmer as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Heat Shimmer plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Heat Shimmer free?
Heat Shimmer is included in SCRNSVRS Unlimited. It's free for your first 7 days; after that Unlimited is $1.99/month or $9.99/year (€1.99/month or €9.99/year) for every screensaver, including new ones. It can also come up in Free this month, when 25 premium screensavers are free for everyone.
Is Heat Shimmer a video loop?
No. Heat Shimmer is rendered live on your Mac with Metal, so it never repeats and stays sharp on any display size. The clip on this page is a screen recording of the real thing.
Will Heat Shimmer slow down my Mac or drain the battery?
No. SCRNSVRS drops to 30 fps on battery and stops rendering when the wallpaper is covered by a full-screen app, so Heat Shimmer costs next to nothing in everyday use.
Which Macs does Heat Shimmer run on?
Heat Shimmer needs macOS Tahoe 26 or later.
