A moving source sending out rings – crowded together ahead of it, stretched out behind.
A moving source sending out rings – crowded together ahead of it, stretched out behind.
In the app you can adjust the colours and speed (of sound). 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 Doppler Effect 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.
Doppler Effect FAQ
How do I set Doppler Effect as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Doppler Effect 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 Doppler Effect as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Doppler Effect plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Doppler Effect free?
Doppler Effect 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 Doppler Effect a video loop?
No. Doppler Effect 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 Doppler Effect 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 Doppler Effect costs next to nothing in everyday use.
Which Macs does Doppler Effect run on?
Doppler Effect needs macOS Tahoe 26 or later.
