Crack Growth — a live screensaver and wallpaper for your Mac.

Real-time · Abstract · PremiumFree this month

Straight cracks run across a pale sheet, each new one branching off an older crack at nearly a right angle and stopping where it meets another, shaded softly along one side until the sheet reads like a crystalline map.

Straight cracks run across a pale sheet, each new one branching off an older crack at nearly a right angle and stopping where it meets another, shaded softly along one side until the sheet reads like a crystalline map.

In the app you can adjust the paper, ink, draw speed, cracks and shading. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.

Use it on your Mac

  1. Get SCRNSVRS free from the Mac App Store.
  2. Select Crack Growth in the library.
  3. Click Set as Screensaver or Set as Wallpaper – or both.
Download on the Mac App StorePreview free · macOS Tahoe 26 or later

Crack Growth FAQ

How do I set Crack Growth as my screensaver on a Mac?

Install SCRNSVRS free from the Mac App Store, select Crack Growth 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 Crack Growth as a live wallpaper?

Yes. Click Set as Wallpaper in SCRNSVRS and Crack Growth plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.

Is Crack Growth free?

Crack Growth 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 Crack Growth a video loop?

No. Crack Growth 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 Crack Growth 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 Crack Growth costs next to nothing in everyday use.

Which Macs does Crack Growth run on?

Crack Growth needs macOS Tahoe 26 or later.

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