Open Sudoku icon

Open Sudoku

Open Sudoku developers
Puzzle
Version
4.11.1
Size
40.1 MB
Requires
Android API 26+
4.6 / 5 · 536 ratings 50,000 downloads

Updated Oct 9, 2026

Quick answer

Open Sudoku is an Open Source Sudoku game.

Open Sudoku is an Open Source Sudoku 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.

Screenshots

Open Sudoku screenshot 1
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Open Sudoku screenshot 8
Open Sudoku screenshot 9

What’s new

- Edge-to-edge layout updates for Play Console requirements [Bart Uliasz]
- Translations updates [Andreas Pettersson, Bart Uliasz, bittin, Muha Aliss, RainSlide]

How to install

  1. Download the APK from the button at the top of this page.
  2. Allow “Install unknown apps” for your browser or file manager only, not for every app.
  3. Open the downloaded file and confirm the installation.
  4. If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.

Data safety

  • Every file is checked against its published SHA-256 before it is listed.
  • Files are scanned for malware on every update.
  • The permissions each app requests are listed on its own page.
  • Read the full safety policy for how we test, flag, and delist files.

Frequently asked questions

What is Open Sudoku?
Open Sudoku is an Open Source Sudoku game.
Who develops Open Sudoku?
Open Sudoku is developed by Open Sudoku developers.
Which Android version does Open Sudoku require?
Open Sudoku requires Android API 26 or later.
What is the current version of Open Sudoku?
The synchronized F-Droid version is 4.11.1.
Which license does Open Sudoku use?
The signed F-Droid metadata lists GPL-3.0-or-later.
Where is the source code for Open Sudoku?
https://gitlab.com/opensudoku/opensudoku

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