Play the classic paper and pencil number puzzle game right on your phone! Enjoy the timeless classic whether you are a beginner or an expert with our simple & elegant design.

Challenge your problem-solving skills with an expert-level game or take a break with a quick game on easy mode. Whether you’re a hyper-competitive puzzle-solver or looking for a way to relax, a beginner or a master puzzler, Tripledot’s Sudoku for mobile is the best way to pass the time.

Choose from four different difficulty levels, and customise your experience with features to help or challenge you.

- Thousands of well-formed puzzles,
- 9x9 classic grid,
- Simple and elegant design,
- Highlight duplicates to help you solve the puzzle,
- Stay on your toes by enabling a mistake limit,
- Use hints to help you find your way through a difficult puzzle,
- Use the pencil mode to make notes as you solve more complex puzzles.

Play the timeless game your way!

- Four perfectly crafted difficulty levels: Easy, Medium, Hard, Expert. Play the classic game your way!
- Auto Check for Mistakes: enable auto-check to check your mistakes, or disable it to play a more free-form game
- Optional Mistake Limit: challenge yourself to a perfect game, or relax with unlimited mistakes
- Pencil mode: Use the pencil mode to make notes on each cell, which automatically update as you play the game
- Statistics: See your best times and streaks for every difficulty level
- Autosave: Your puzzles save as you go, so you can come back anytime
- Highlight duplicates to avoid repeating numbers in a row, column, and block
- Hints: Hints can guide you through the puzzle when you are stuck
- Eraser: Made a mistake? Get rid of it by using our eraser feature
- Unlimited undos: Eliminate errors using our unlimited undo feature
- Customize appearance: Choose from three beautiful skins for a game that is as easy on the eyes as it is to play

By using Sudoku, you agree to our Terms of Use and Community Guidelines available at
Questions? Email for help!

What’s New

Version 1.3.2

Hello Sudoku fans!
Thank-you all for playing and for the amazing feedback. We always listen to our fans!

What’s New?
- Pencil mode is now clearer and easier to use.
- You wanted more daily challenges? You got it! You can now access all daily challenges going back 12 month!
- You can also replay any Daily Challenge to beat your time.
- We’ve added new and fun boards for all difficulties.
- Added some more small animations to make the game feel more fluid.
- Bug fixes and performance improvements to make the game load and run even faster.

Some of our 5 star reviews:

“Once you get the hang of it you are engaged and focused”

“All levels of Sudoku. Love the daily challenges.”

“Great, love it very easy to use!”

Thanks again for playing, and as always If you have any suggestion please let us know at
Keep Sudoking!

Ratings and Reviews

4.7 out of 5
165 Ratings
165 Ratings
Mark Beck ,

Easy to difficult

All levels of Sudoku. Love the daily challenges.

Jadsgy ,

Great game!

Great game! Love all the available levels and the graphics! Enjoyable to play in my free time!


Tripledot Studios Limited
156.4 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© Tripledot Studios Limited


  • Family Sharing

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

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