Tchisla

More than a calculator, Tchisla is the dynamic, arithmetical puzzle game.

10 seconds of math

Practice mental arithmetic

Griddition is a challenging numbers puzzle where you must fill a grid with numbers, Sudoku-style.

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A uniquely challenging math puzzle game.

Math practice app that sends you questions between 10AM and 10PM to keep you on your toes.

Perfect for students to improve their math abilities

How fast can you add two numbers?

A fun number puzzle game for iPhone and iPad.