Russian national Fool (дурак) card game
About this app
OpenFool is a free and open source Fool (Durak) card game for desktop and Android.
Features * Individual game for 2 to 5 players and 4-players partnership game * 52-card decks: Standard Russian (designed by A. Charlemagne in 19th century, public domain - from Wikimedia), international (by Chris Aguilar - LGPL v3), French deck (by David Bellot - LGPL v3) * Standard rules for throwing in (some convention can be customized)
Licensed under MIT.
What's New in v0.3.0
Imported from the F-Droid repository index.
Version history
Jan 3, 2020 · 17.7 MB · Android API 14–28 · code 30
Imported from the F-Droid repository index.
SHA-256 04c8764f5e00b277d451946b7ca2b073937c7a08d2086ab1c5ddc360eb893066
Aug 22, 2019 · 20.4 MB · Android API 14–28 · code 29
Imported from the F-Droid repository index.
SHA-256 43da35346ab56a0628a7b0bc6ea0f3bd951895c8e875c8be73be9c0bbcf88ba8
Nov 11, 2018 · 12.8 MB · Android API 14–27 · code 28
Imported from the F-Droid repository index.
SHA-256 37bffb8487df68789b373f251c5db4b01b81dd09741f4374ec7976df1c7d671c
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
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 ru.hyst329.openfool 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, 0.2.9 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall OpenFool 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 OpenFool, and a listing is removed when the evidence for it stops holding up.
Get OpenFool
Every source we list for ru.hyst329.openfool 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
04c8764f5e00b277d451946b7ca2b073937c7a08d2086ab1c5ddc360eb893066
Signing certificate
c45d70fc75e5de9477d3cb109cda2551b598f1cd579d07dff286b33a5ece2074
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
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