About
Experience Sudoku with every grid size imaginable, from 4x4 to 25x25. Enjoy a daily free puzzle, focus mode, and unique stamp and checkpoint features. This app offers a one-time purchase for unlimited access with no ads or tracking.
What's New in Sudoku Atlas
1.0.14
August 17, 2026
After you leave a completed puzzle, we may occasionally ask if you'd like to rate Sudoku Atlas. The prompt never appears on the victory screen itself. Not now postpones it.
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$4.99
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Unlimited puzzles; One-time purchase - No Subscriptions
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FAQ
What grid sizes does Sudoku Atlas offer?
Sudoku Atlas offers a comprehensive range of grid sizes, starting from quick 4x4 and 6x6 puzzles, through the standard 9x9, and extending to larger 16x16 and 25x25 challenges.
Is Sudoku Atlas free to play?
Yes, Sudoku Atlas is free to download and includes a free daily 9x9 puzzle that never expires. A one-time purchase unlocks all features and grid sizes permanently.
Does Sudoku Atlas have ads?
No, Sudoku Atlas is completely ad-free. The app has no ad SDK, ensuring an uninterrupted gaming experience.
Can I save my progress in Sudoku Atlas?
Yes, Sudoku Atlas features checkpoints that allow you to save your board at any point and rewind if you make a mistake or want to try a different strategy.
How does the 'Focus Mode' in Sudoku Atlas work?
Focus Mode in Sudoku Atlas helps you concentrate by blurring away all values except for one. This makes it easier to scan the board and see where your chosen number can be placed.
Can I share puzzles with friends in Sudoku Atlas?
Absolutely. Every puzzle in Sudoku Atlas has a unique seed code that you can share with friends, allowing them to play the exact same grid in the same starting state.
What devices is Sudoku Atlas available on?
Sudoku Atlas is currently supported on iPhone and iPod devices.
How often is Sudoku Atlas updated?
The latest version of Sudoku Atlas was released on 2026-06-25, indicating regular updates to improve the application.