Open Sudoku

4.5
377 reviews
10K+
Downloads
Content rating
Everyone
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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
Mar 9, 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

4.6
351 reviews
Mark Richardson
September 26, 2024
Really enjoyed this since 1.x until latest update. Almost uninstalled. Silenced annoying beep and turned off most “helpers” especially double pencil marks. Game became almost usable. I cannot get past is having input/pencil to right. Thumb blocks it, and it destroys the top/middle/bottom input flow that the previous release did a great job of. I use popup mode exclusively. Having mode on the right introduces an awkwardness. Not normal good UI behavior. PLEASE return the “Tabbed” UI approach.
5 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.
9 people found this review helpful
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Per Nystrom
July 27, 2020
So happy to have found this! It fixes the "problems" with the original from Roman Mašek. 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!!!
13 people found this review helpful
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What’s new

4.4.0:
• New SUID (Sudoku Unique ID, can be used to copy puzzle)
• New "Hint" strategies (Remote Pair, BUG: Bi-value Universal Grave)
• New "Play random unsolved puzzle" button if there's no resume
• Keyboard UI changes
• Translations updates

4.3:
• New "Hint" strategy (Empty Rectangle)
• Unsolvable puzzle alert
• UI improvements
• Import/export issues fix
• Folder list update fix
• Multiple various bug fixes
• New translation to Finnish!
• New translation to Tamil!