Puffs of heat landing on a plate and slowly spreading out as they cool.
Puffs of heat landing on a plate and slowly spreading out as they cool.
In the app you can adjust the spread. 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 Diffusion 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 Diffusion FAQ
How do I set Heat Diffusion as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Heat Diffusion 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 Diffusion as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Heat Diffusion plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Heat Diffusion free?
Heat Diffusion 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 Diffusion a video loop?
No. Heat Diffusion 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 Diffusion 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 Diffusion costs next to nothing in everyday use.
Which Macs does Heat Diffusion run on?
Heat Diffusion needs macOS Tahoe 26 or later.
