Solar system
Planets start where they really are today, lit by the Sun with true phases. Click empty space to launch a comet.
A tiny universe
on your desktop.
Puniverse turns your Mac's wallpaper into a living pixel-art cosmos. Click anything and learn something real.
One email when it launches. No spam. Privacy
Three scenes. Real physics.
Pixel art on the outside, real science on the inside.
Spiral galaxy
Old golden stars in the core, young blue ones in the arms. Click to set off a supernova.
Black hole
Gravity bends the light of the disk over the top, just like the real thing. Drop matter and watch it spiral in.
Click. Learn. Repeat.
Every planet, star and visitor hides a real fact, short enough to remember.
VenusA day on Venus is longer than its year.
SaturnIt is less dense than water.
Event horizonNothing, not even light, can escape from here.
Made for your Mac
Light, native and respectful of your work.
- Lives behind your windows and pauses when they cover it.
- The sky's colors follow your local time, from dawn to night.
- Real visitors drop by: the Space Station, Hubble, Sputnik… and a UFO.
- A real screen saver included, and meteor showers on their real dates.
- In English, Spanish, French, German, Italian, Portuguese, Chinese and Japanese.
- One-time purchase. No subscription. No tracking.
Questions
Will it drain my battery?
No. In our tests on an Apple Silicon Mac it uses about 3% of one CPU core while animating, and it pauses by itself when a window covers the desktop. You can also pause it on battery.
Which Macs does it run on?
Any Mac with macOS 13 Ventura or later, with Apple Silicon or Intel.
Does it need the internet or collect data?
No. It works offline and collects nothing. Planet positions, Moon phases and meteor showers are calculated on your Mac.
Are the facts real?
Yes. Every fact is checked, the planets start where they really are today and the Moon shows its real phase. Sizes and distances are not to scale, or the planets would be invisible.
Is it a screen saver too?
Yes. It includes a real screen saver for System Settings that works with the lock screen and hot corners.
How much will it cost?
A one-time purchase, no subscription. Everyone on the waitlist gets the launch price.
Be the first to explore it
Coming soon for macOS 13 or later, on Apple Silicon and Intel. Join the list and get the launch price.