Open Sudoku is an Open Source Sudoku game.
About this app
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.
Licensed under GPL-3.0-or-later, by Open Sudoku developers.
What's New in v4.7.0
Imported from the F-Droid repository index.
- - 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 [大王叫我来巡山, Andreas Pettersson, Bart Uliasz, Joan Montané, Michalis, ssantos, Ștefan Zaharia]
Version history
Jun 26, 2026 · 3.1 MB · Android API 26–35 · code 20260625
Imported from the F-Droid repository index.
- - 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 [大王叫我来巡山, Andreas Pettersson, Bart Uliasz, Joan Montané, Michalis, ssantos, Ștefan Zaharia]
SHA-256 3be09258b3a7d8cea32ae7e04944d09e4603eb2ff340f527baf1cd68899b6ec9
Apr 13, 2026 · 3 MB · Android API 26–35 · code 20260412
Imported from the F-Droid repository index.
- - New folders sorting feature [Rainer Popella]
- - New translation to Catalan! [Joan Montané]
- - Bugfixes/improvements [Bart Uliasz]
- - Existing translations updates [大王叫我来巡山, தமிழ்நேரம், Andreas Pettersson, Bart Uliasz, Manuel Tassi, Óscar García Amor, Rainer Popella]
SHA-256 790262c5f44a5988721e7c32d33f5eaa3213e75a503e569f90dd7dd4e1dcd698
Dec 30, 2025 · 3.3 MB · Android API 26–35 · code 20251229
Imported from the F-Droid repository index.
- - New "Hint" strategy (X-Chain) [Rainer Popella]
- - New translation to Galician! [José M.]
- - Translation updates [AndyRn.t.me, Bart Uliasz, Lula Bye, Manuel Tassi, poesty, Rainer Popella]
SHA-256 08f4be311c06878e8f5459811626c3e3cc39133716c7c34c516c4ee80fbfb4e9
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be org.moire.opensudoku is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 4.6.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Open Sudoku first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Open Sudoku, and a listing is removed when the evidence for it stops holding up.
Get Open Sudoku
Every source we list for org.moire.opensudoku is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
3be09258b3a7d8cea32ae7e04944d09e4603eb2ff340f527baf1cd68899b6ec9
Signing certificate
a54ce29ebb02fcb9b478620572f7c4dd39b903736fe6199687471ba729f4613a
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.