Fluid heated from below breaks into a honeycomb of rolling cells – hot plumes rising in the middle, cool fluid sinking at the walls.
Fluid heated from below breaks into a honeycomb of rolling cells – hot plumes rising in the middle, cool fluid sinking at the walls.
In the app you can adjust the cell size and 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 Convection Cells 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.
Convection Cells FAQ
How do I set Convection Cells as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Convection Cells 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 Convection Cells as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Convection Cells plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Convection Cells free?
Convection Cells 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 Convection Cells a video loop?
No. Convection Cells 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 Convection Cells 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 Convection Cells costs next to nothing in everyday use.
Which Macs does Convection Cells run on?
Convection Cells needs macOS Tahoe 26 or later.
