4.7
2.5K reviews
50K+
Downloads
Content rating
PEGI 3
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About this game

★ Top Developer (awarded 2013) ★
Same as our free "Sudoku", but without ads.

- 2500 Sudoku puzzles over 5 difficulty levels, covering easy through to medium, hard, and extreme levels

- Various different modes for notes input to cater for all playing styles

-Pre-fill notes option

-Auto-clear notes option

- Optional hints, undo and board aids

- 4 fonts/sets of symbols & 5 boards

- Statistics tracking, including fastest times, average times and completion % for each level

- Super smooth interface and graphics

- Suitable for both Phones and Tablets
Updated on
Oct 6, 2025

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
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.7
2.1K reviews
Bluejay Blackburn
June 26, 2025
I love the ability to change appearance and even includes a symbolic (non-numeric) mode. Only complaint is they dictate one of the settings is not usable at the same time as another "because that would be too easy". It's an optional setting though? Seems like should people play how they want to instead of how you want them to.
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AI Factory Limited
June 27, 2025
Thank you for your feedback. You can start a puzzle with "pre-fill notes" on, then immediately go to Options, switch to "auto-clear notes" then go back to the puzzle. Hope this helps! Our concern was that people might turn on both without realising how easy it would make each game and then not enjoy playing, but we will keep this under review.
G Morris
November 27, 2023
Very good and enjoyable. Would like to see the highlight move when undo is pressed so you see what you have undone. Also it's a pain going back to find a specific game with arrows: a number entry box would be nice. Another wish would be to be able to enter a game manually, although that sounds like a lot of work
3 people found this review helpful
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AI Factory Limited
November 29, 2023
Thank you for your suggestions. We have added these for consideration on our to-do list. However we're a very small team with lots of apps to look after so can't say how long it might take to assess any requests.
Rhiannon Fleet
June 7, 2022
I love this app! I've been playing it for years and it's the first app I've purchased the Pro version of because I loved it so much! Thank you for adding more puzzles as I had completed all the hardest ones! However, I believe there is an error with the hints for Puzzle 305 and 311 for Difficulty 5. Using only the hint function to fill in the numbers, the app gets stuck. I put the puzzles in a solver and they work, but the in-game hints are just incorrect.
8 people found this review helpful
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What’s new

SDKs updated, edge to edge display added