Contains adsIn-app purchases
597K reviews
Content rating
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About this game

You won’t be looking for a paper puzzle ever again!

With 4 difficulty levels, intuitive interface, and all the functions right at your fingertips, this Sudoku app is sure to be your favorite. Interrupted? Exit Sudoku, and the puzzle is saved exactly as you see it!

Want to know how you stack up against other Sudoku players? Upload your results to our servers and see for yourself, or take part in a weekly Sudoku competition.

* 4 difficulty levels
* 3 input modes: "Digit first", "Cell first", popup
* Pencil marks (a.k.a. Notes) with auto fill / erase option
* Selected digit and various other highlighting options
* Show digit counts option
* Auto-save
* Unlimited Undo and Redo
* Intelligent hints that use only logic
* Two levels of automatic error checking option
* Submit results and track progress online
* Top scores and History
* Real time competitions

Sudoku supports trackball, touch screen, keyboard.

NOTE: This application is ad-supported. You have a choice of ad formats: in-game banners or in-between games interstitials (shown once every three games or so). The screenshots depict playing with the full screen ad style selection.

NOTE: The INTERNET permission is required for competitions and game results upload. The READ and WRITE_EXTERNAL_STORAGE are needed for move-to-SD functionality.

Please contact our support team at if you have any questions, comments, or suggestions about improving this Sudoku app.

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Updated on
May 3, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and Device or other IDs
Data isn’t encrypted

Ratings and reviews

538K reviews
Lainey Johnson-Bowen
June 9, 2024
Been using this app for years after I got tired of spending money on paper sudoku books. I see folks mentioning the assist features, but I actually like this app the best because those can be turned off - I wanted something as close to paper puzzles as possible, and this app provides it. Other apps wouldn't let me turn off the highlighting, timer, etc. but this one is fully customizable.
4 people found this review helpful
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Kate N
January 23, 2024
All the features I want. No need to go back and forth, cell-number cell-number, to fill in multiple pencil marks. Automatically erases pencil when you fill in a number. Hilites all locations of the number you're currently working on. Puts pencil marks in keypad-placement instead of crammed one after another. Validation if you think you've messed up, and Hints if you really need it. Makes it too easy, I suppose, but I doubt if I'll go back to any lesser version. Needs higher levels.
12 people found this review helpful
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Kenneth Peake
March 26, 2024
I just re-download this game. I think someone in programming made a mistake because the extreme levels are easier than the hard levels. I had this game for years and never had to use a hint for the hard levels. The extreme is a challenge, yet it is easier. Someone needs change this because the settings are wrong.
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What's new

- Bug fixes.
- Library updates.