01 is the ultimate way to train your binary skills. Play quick games that test your binary number recognition and improve your ability in the process.

Choose an available number, convert it to binary as quickly as you can, and swipe it off the board. It's that simple! 01 is an addictive game that'll have you thinking in 0s and 1s in no time.

Other features:
-> Three unlockable difficulties to keep things challenging.
-> Game Center leaderboards: compare scores with your friends.
-> iCloud syncing: sync your high scores to all of your devices.

01 is a universal App, looking great on all current iPhone and iPad models, including iPhone 6 and 6 Plus.


Need a quick tutorial on the basics of binary numbers? Try

Ratings and Reviews

4.4 out of 5
37 Ratings

37 Ratings

CaGameDevInDc ,

Good binary number drill, but unstable

This is a pretty good binary number drill game, and it even has a bit of the "Flappy Birds" magic formula: quick ➕ hard => addictive ➕ fun. Unfortunately, as soon as I got to the 5-bit mode it started to crash sporadically on correct swipes. It doesn't have bright colors or splashy graphics, but after a bit more debugging and polishing, for an educational game, it'll be a winner.

Anyone of us ,

Clever game

I thought this game would be a little fun for a while...but I keep coming back to it. It's challenging but simple enough to learn in a minute. The animations and art style are really nice.

CS Student #16432 ,


Great app! Fun way to practice binary. One can only hope that downloads for this app skyrocket. The dev who created this app deserves it.


Jack Morris
11.8 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like