The origin of SUDOKU fever, the Japanese puzzle company NIKOLI Co., Ltd. has released a Sudoku application for iPhone, iPod Touch, and iPad!

The name of the application is "Sudoku by Nikoli", it contains 9 free sample problems. You can purchase and add problem collections that contain dozens of Sudoku puzzles at the App Store, via the "Sudoku by Nikoli" application. Please try out the free sample problems. If you like these original Nikoli Sudoku puzzles, we are confident you will also enjoy the new problem collections you add.

The problem collections are categorized by difficulty (easy, medium, and hard) on the purchasing pages. When you add a new problem collection, it is simple to choose your favorite difficulty level of Sudoku puzzles. We will keep publishing new problem collections, so you will can continue enjoying our well polished finely tuned Sudoku puzzles as often as you wish.

We have worked hard to develop the Sudoku application, and with its original iPhone-like interface it has a great feel, solving Sudoku is smooth and pleasant.

- The application lets you change the orientation of the puzzles to suit you. You can always play Sudoku puzzles just the way you wish. Of course you are able to enter temporary memo numbers when you solve the Sudoku puzzles.
- The original Sudoku interface is iPhone-like and it still feels like solving with a pencil.
- You can purchase and add new problem collections via the "Sudoku by Nikoli" application. This is a new function for "Sudoku by Nikoli", here you can gather together and enjoy many great Sudoku puzzles using just one application.
- There are both save and quit functions, so you can interrupt your play and resume it when you wish. Easy to keep playing with even a little free time.
- Your list of problems shows which problems you solved, which you still didn't completely solve, and which are not tried yet. Try to solve all the puzzles!
- The application lets you change the orientation of the puzzles to suit you. You can always play Sudoku puzzles just the way you wish.
- The application tells you your solution time. A good way to to see how fast you can solve Sudoku problems.
- The tutorial tells you the Sudoku rules and how to solve Sudoku. No need to worry if you never did a Sudoku puzzle before.

What's New

Version 2.0.5

Minor bug fix.

Ratings and Reviews

Please provide setting for no timer


Please provide setting for no timer. 4-5 stars once i can play w/out timer

What a shame


It is almost a crime that this collection of the best sudoku puzzles available anywhere is presented in an app written by someone who doesn't have a clue about the interplay between the puzzle author and the puzzle solver. The appreciation and enjoyment of these fine puzzles is completely ruined by the omnipresence of the obnoxious timer, ticking away, harshing the mellow of the sudoku aficionado, and punishing him for taking the time to savor the beauty of the puzzle designs. This outrage is akin to putting a tiny Waldo in a 400 year old bonsai and giving the visitor 60 seconds to find Waldo before the viewing window slams shut. For the sake of all that is decent, give the player the option of turning that hideous timer off.

The Best

Retro Matt

Nikoli are the founders of this style of sudoku and other great logic puzzles. I am glad they have iPod/iPad apps now since each puzzle is hand made vs. computer generated puzzles and they have much better flow to them. Worth the $ for the add on packs.


28.6 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+
© NIKOLI Co.,Ltd.
In-App Purchases
  1. Hard 001 $0.99
  2. Medium 001 $0.99
  3. Medium 002 $0.99


  • Family Sharing

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

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