How it works
A counter sits in the middle and the game names a target. Exactly one disc on the ring gets you there.
What you have, what you want
The solid number is your counter. The dashed one is where the round ends.
Add, subtract, multiply, divide
Each disc carries its number; its colour carries the operation. Multiply and divide are physically larger, so you find them without reading.
The ring is the clock
It drains while you think, and every right answer buys some of it back. A good streak is what keeps a run alive.
Three ways to play
Arcade
The clock is running. Chase your best.
Extreme
Seven more levels, starting where Arcade ends.
Practice
No clock, no score. Just practice.
The full version
€2.99
Unlimited Practice, progress tracking, and no ads. One purchase, no subscription.
Progress shows you your own measured times: which operations you answer quickly, and which ones you do not.
Get Arithmo
Android first. The listing goes live with the first release.