Binary Challenge

Master Binary Numbers and
Train Your Mental Math!

Binary Challenge

Master binary numbers & Train your mental math with this amazing game!

Binary Challenge drives you to convert binary (and hexadecimal) numbers to the decimal system by mental math faster and faster. Dive into the meditative “deep space” atmosphere to enhance your concentration and enter flow.

You start in super simple 4-bit binary mode and choose your result from suggestions. Discover new game modes, more numeral systems and advance to larger bit-sizes by mastering each level. We’ve included “Pure” and “Insane” mode where you calculate the exact result, hexadecimal numbers, and numbers with up to 32-bit. The faster you convert the numbers, the higher your score. Earn your place in our leaderboards and compare with your friends! Are you ready for the binary challenge?



Master binary, quaternary and hexadecimal

Game Modes

Several game modes with varying difficulty. Start with 4-bit mode and advance to reach 32-bit mastery.


Binary Challenge will explain every conversion step by step if you need help


Master 54 achievements!


Raise in ranks and compete in our leaderboards

Ambient Music

Meditative futuristic background music

Teachers and Students

With our latest major release of Binary Challenge, you now can easily enable all features and remove the occasional ads for your whole class or course at once!

Use our special highly discounted in-app purchases for educational purposes. Educational FAQ


“… it’s surprisingly engaging thanks to a very well-thought-out UI.”

Michael Crider

“It’s easy to get drawn into it, and there’s a reason for that…”
(Score 4.13 / 5)

Jason Botha

“It’s a special game that stands out because of its originality and amazing design.”
(Score: 8.8 / 10)

Anna Grace