KenKen® - Brain Training Puzzle

Train your brain with KenKen®, the unbelievably fun, exciting and addictive logic and math puzzle! KenKen is an amazing puzzle that is frequently described as “sudoku on steroids.” If you like other brain games such as sudoku, 2048, Threes, Kakuro, Unblock Me, Tricky Test, Tetris, Flow, jigsaw puzzles, word search puzzles, or crossword puzzles, then you will LOVE KenKen!

This is the ONE-AND-ONLY Original KenKen app, created by acclaimed Japanese mathematics educator Tetsuya Miyamoto. Don’t be fooled by unauthorized versions such as mathdoku and calcudoku, and don't get stuck in a sudoku rut. Play KenKen math puzzles today!

KenKen appears daily in the New York Times and hundreds of other publications around the globe. NY Times puzzle editor, Will Shortz, calls KenKen "the most addictive puzzle since sudoku."

There are virtually unlimited KenKen puzzles available to you on this app. The first 50 are included FREE with the download. If you need problem! Just order them and they'll appear immediately. YOU select the size, difficulty level, and operations.

KenKen Classic includes:
- 50 FREE fun math puzzles of every size and difficulty level
- Unlimited FREE 3x3 size puzzles to learn from and enjoy
- Virtually unlimited puzzles, ranging from 3x3 to 9x9 grids, from Easy to Expert
- A variety of color schemes and music (you can even set your own music to play in the background)
- 3 input modes for digits and notes
- Great extra features such as Hints, Check, Undo, Redo, Reset, Pause, and Timer
- Online leaderboards
- Ability to post results directly to Twitter
- Ability to email results and invite friends

What’s New

Version 2.7

Small fixes and tweaks ... making things better.

Ratings and Reviews

4.9 out of 5
53 Ratings
53 Ratings
imaterrier ,

Dastardly clever!

A gem of a game, so many levels, intricacy of play and difficulties, I love this game even more than Sudoku which I’ve been playing a long time. Just starting to try the more challenging levels, the tips on playing are very good and I like the simplicity of the grids. Well done!

Tempts Fugit ,


Love the way you can enter multiple options within each square. A frustrating point about paper versions of the game and other number puzzles eg Sodoku. Automatic removal of numbers that become impossible. I’m new to the game and I’m hooked!

SteeeeeveP ,

Great variety

I find KenKen more challenging and more fun than Sodoku. This app provides an amazing variety of levels of difficulty so you can always find a puzzle to solve to suit your wish.


KenKen Puzzle, LLC
45.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© KenKen Puzzle LLC
In-App Purchases
  1. 250 Puzzles PLUS removal of all ads! £7.99
  2. 31 Puzzles PLUS removal of all ads! £1.99
  3. 1000 Puzzles PLUS removal of all ads! £14.99


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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