Divisible Dash
A number falls. The pill asks: divisible by 7? Swipe right if it is, left if it is not. The divisibility rules for 2 to 12, learned at arcade speed.
Your class code, so it is not lost on the way to the store:
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After installing: open the app, tap JOIN CLASS, then type or paste this code.
Launching October 2026
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Free to play, every day.
The Daily Challenge
One run a day against the same numbers as everyone else, plus two practice runs. Free, with no account needed.
Every rule, 2 to 12
Drill the tests until they are automatic, and read the worked examples for any rule that has not clicked yet.
Race your friends
Swap 6-character friend codes and you appear on each other's boards. Class boards for schools are free too.