The award-winning, cult-classic KooZac is back with a fresh new look for mobile.

KooZac is a game caught between Tetris and Sudoku that’s as challenging as it is entertaining. The concept is simple: position the falling blocks on top of each other to create the target numbers and clear the blocks.

Described as utterly addictive yet surprisingly educational, KooZac takes the best bits of a block puzzler and a mental challenge game to produce one hard-to-put-down revelation.

- Free to play forever
- Easy to learn, endless fun to play
- Like Tetris with numbers
- Designed to improve mental arithmetic
- Beat your high score


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What’s New

Version 2.3

This app has been updated by Apple to use the latest Apple signing certificate.

More numbers, targets and combo's added

Ratings and Reviews

3.8 out of 5
598 Ratings

598 Ratings

Corigens25 ,

Fun while it lasts

This app is accurately described as "Tetris with numbers". However, I found it to be simpler and less frustrating than Tetris.
The format is similar to Angry Birds: there are fifteen games in a level, and four levels to play in the app. The main difference is that it involves basic addition and subtraction. As mentioned above, it is like Tetris in that it involves matching falling blocks.
My only complaint is that there are not enough levels. I finished the game within one day, and gone back and mastered all the levels with a perfect score in another day.

AJShadowz ,

Why everybody hating on this game???

I actually think its pretty fun. I guess people are just stupid... All the " this game is sooo confusing, and it's difficult and boring" comments must be coming from people that are just plain unintelligent because this game is easy. What's so hard about line the blocks up but number to reach the number displayed at the top??? I give this game 4 stars because I think it's fun and I enjoy playing it.

BalongBolt15 ,

One word, ADDicting!

This game is very addicting, but if you don't really like ARITHMETICS stuff like me, you won't find this game interesting. But give it a chance, and probably you'll like MATH stuff by then you tried playing this game. The only bummer are the controls. Sometimes, I swipe down the wrong column and everything's messed up(it will make sense when you play it in the iPhone/iPod). Deserves to be the APP OF THE WEEK!

App Privacy

The developer, Rekiv, 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.


  • Family Sharing

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

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