Shapes of constant width rolling between two bars that never tilt, and turning inside squares while touching every side.
Shapes of constant width rolling between two bars that never tilt, and turning inside squares while touching every side.
In the app you can adjust the colours, shape set and trails. 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 Constant Width 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.
Constant Width FAQ
How do I set Constant Width as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Constant Width 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 Constant Width as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Constant Width plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Constant Width free?
Constant Width 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 Constant Width a video loop?
No. Constant Width 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 Constant Width 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 Constant Width costs next to nothing in everyday use.
Which Macs does Constant Width run on?
Constant Width needs macOS Tahoe 26 or later.
