Squares on a grid open one by one at random and join into coloured clusters; near the critical density one cluster suddenly links top to bottom and lights up, then the grid closes again.
Squares on a grid open one by one at random and join into coloured clusters; near the critical density one cluster suddenly links top to bottom and lights up, then the grid closes again.
In the app you can adjust the colours, grid rows and open speed. 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 Percolation 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.
Percolation FAQ
How do I set Percolation as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Percolation 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 Percolation as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Percolation plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Percolation free?
Percolation 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 Percolation a video loop?
No. Percolation 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 Percolation 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 Percolation costs next to nothing in everyday use.
Which Macs does Percolation run on?
Percolation needs macOS Tahoe 26 or later.
