Andoku Sudoku 3

Contains adsIn-app purchases
47K reviews
Content rating
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About this game

Andoku Sudoku 3 is a Sudoku number puzzle game for smartphones and tablets. The game contains Sudoku puzzles of various difficulty levels and detailed instructions. It is aimed at beginners and experts alike.


✔ intuitive navigation
✔ appealing design
✔ auto-save running games
✔ unlimited undo and redo
✔ enter notes
✔ numerous assistance functions
✔ many game variations
✔ nine difficulty levels
✔ cloud synchronization
✔ enter your own Sudoku puzzles
✔ game statistics

Game variations

Andoku Sudoku 3 offers numerous other game variants in addition to the standard version of Sudoku:
• X Sudoku
• Hyper Sudoku
• Percent Sudoku
• Color Sudoku


Andoku Sudoku 3 comes with tutorials that teach you many solving techniques. Based on specific game situations, the tutorials explain the solving techniques step by step.

The solution techniques are ordered by difficulty, ranging from very simple (Introduction, Hidden Single, etc.) to very difficult (XY Chain, Sashimi Swordfish, etc.).

Enter your own puzzles

Would you like to solve a Sudoku puzzle from your local newspaper on your smartphone? With Andoku Sudoku 3 you can easily enter your own puzzles.

Cloud synchronization

The game allows you to save your progress in the cloud. This also allows running games to be synchronized between different devices.

You can start a game on your smartphone and continue to play on your tablet later!
Updated on
May 13, 2022

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
No information available
47K reviews
January 21, 2022
Hands down the best sudoku app I have found. The tutorial section outlines what techniques are added to each level of increased difficulty, allowing you to learn as you progress. Clean, easy to use interface with plenty of assistance options (or none, if that's your thing). I can't speak for the ads as I purchased the ad removal. 12/10 I reccomend.
17 people found this review helpful
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Dallas Jensen
February 22, 2022
Very good app, I would really like it and would upgrade it if indicated the row and column as you touch the grid. I have found one puzzle (Hard standard #224) that has a mistake. It is possible in that puzzle to do only legal moves and still send up in a stalemate of one empty cell and no way to complete the puzzle. I am reducing my rating because of that.
13 people found this review helpful
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Markus Wiederkehr
April 28, 2022
Please use the "show hint" feature from the menu, it will point out any mistakes you might have made. The one and only solution for Hard standard #224 is 813759642 459623781 672148539 591487263 764532198 328961457 936214875 185376924 247895316.
A Google user
January 20, 2020
Ive been using this for several years. On the one hand I wish there was a way to show different levels of candidates, perhaps through coloring. On the other hand, that feature would really be nothing more than enabling guessing and backtracking, therefore I'm forcing myself to learn the strategies the experts use. So, 5 stars.
2 people found this review helpful
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What's new

• Added an option to hide candidates when entering a custom puzzle
• Added a dialog for entering puzzles encoded as 81-digit string
• Removed the extra margin that was used on some devices; go to Settings, Look and feel, to re-enable it if needed
• Updated library dependencies
• Minor bug fixes