Open Sudoku

4.6
514 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Learn more
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About this game

Features:
• Without ads
• Puzzles can be downloaded from web, entered by hand or generated on the project's homepage
• Game stats (time spent, mistakes)
• Next step hints with multiple strategies suggestions
• Import to and export from a file
• Visual themes including custom theme editor
• Several input modes (finger-friendly numpad, popup, keyboard etc.)
• Double pencil marks
…and much more.

More information (including how to report ideas and issues) can be found on the project's home page: http://opensudoku.moire.org
Updated on
Jul 9, 2026

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
479 reviews
Per Nystrom
July 27, 2020
So happy to have found this! It fixes the "problems" with the original from Roman MaŔek. And when I say problems, I mean that over the years the Android OS broke backward compatibility and you could no longer get to the menu. I don't blame the developer at all for this, but I'm thrilled that someone has taken it up and modernized it. Thank you!!!
16 people found this review helpful
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--
February 4, 2022
Open Sudoku, how did I not know about you before now?! Thank goodness I found you. I was still playing on the original, after it lost many of it's features. 1- you are fully functioning: filter out completed games, choose the theme colors, choose the kind of keypad, add my own puzzles, 2-no ads !!! 3- no intrusive permissions!!! Thank you so so much.
11 people found this review helpful
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Ash Thomas
March 27, 2025
I have been using this app for about a year without any problems, however the latest version 4.4.1 has totally lost the 10,000 games that I was playing (1389 played). Error: Could not find puzzle in the database. not a good experience. using the RESET ALL option does what it says, and the unfindable puzzles are again playable (until the next forced upgrade, no choice to opt out)
3 people found this review helpful
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What’s new

- New Puzzle Rating feature [Rainer Popella]
- New feature to select fonts for digits [Andras Porjesz]
- New translation to Greek! [Michalis]
- Bugfixes/improvements [Bart Uliasz]
- Existing translations updates [å¤§ēŽ‹å«ęˆ‘ę„å·”å±±, Andreas Pettersson, Bart Uliasz, Joan MontanĆ©, Michalis, ssantos, Ștefan Zaharia]