15 Digits
GamesPuzzleCard

15 Digits

Satoshi Washio · released 21 Jul 2026 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
Rating no reviews

No in-app products collected for this app.

RatingPrice
United Arab Emirates<1%0AED 2.99 $0.81
Afghanistan<1%0$0.99
Antigua And Barbuda<1%0$0.99
Anguilla<1%0$0.99
Albania<1%0$0.99
Armenia<1%0$0.99
Angola<1%0$0.99
Argentina<1%0$0.99
Austria<1%0€0.99 $1.14
Australia<1%0A$1.99 $1.41

The store shows a different set in every country

Description

An entirely original math puzzle game.

The idea first came to me 15 years ago while I was playing with my child in the bath using sponge number toys.

Using the numbers 1 through 10 and the five mathematical symbols +, −, ×, ÷, and =, each exactly once, your goal is to create a correct equation with both sides of the = sign balanced.

The rules are simple and easy to understand, yet this is a completely new kind of math game unlike anything else out there.

It’s so addictive that you may even forget to get out of the bath—and forget about everything else too.

This is a game that both children and adults can enjoy. I hope it grows into something like the next Sudoku and becomes popular all over the world.

I’d also love to create many more difficulty levels, so it can become the perfect game for everyone to enjoy in their spare time.

Please download and give it a try!