Sumdoit is great fun for children, math wizards and everyone in between. It only uses single digits from 0 to 9 and no equation is greater than 20. Sumdoit uses simple math to improve your speed, problem solving and focus skills. It has 3 main levels, 2 x 2, 3 x 3 and 4 x 4 grids with 4 levels for each, Easy, Difficult, Extreme and Insane. Your children will love the 2 x 2 and you the 3 x3 and for those of you who excel in math the 4 x 4 will give you the challenge you are looking for.

Slide and Drop
Reset for Correct Puzzle Totals

What’s New

Version 1.4

1 Enable you to switch number
2 Enable you to pause time when you enter background

Ratings and Reviews

4.0 out of 5
3 Ratings

3 Ratings

Guilicious ,

A perfect math puzzler

If you love math puzzles, look no further. This one provides hours of fun. The game is 100% skill based so there is no reliance on randomization to complete your puzzle. This is probably my favorite aspect. The visuals are nice and flat and the ads are unobtrusive. Couldn’t recommend more.

App Privacy

The developer, Lajo Cymbalski, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • 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.

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