Arithmos

A math app for iPhone

A natural way
to learn math.

Arithmos is a calm little math app with short, gentle lessons that actually explain why things work.

We only send one email: the one that says it’s out.

  • It goes in order.

    Each lesson builds on the one before it. You're never dropped into something you haven't seen.

  • It's lovely to look at.

    Warm parchment colors, soft slow animation, nothing cluttered. It feels closer to a storybook than a textbook.

  • It's quiet.

    No ads, nothing blinking, nothing trying to keep you hooked. You sit down, do a lesson, and get on with your day.