A simple and easy to use flash card to help you study
About this app
A simple and easy to use flash card app to help you study smarter and learn faster!
Create & Manage
• Easily add decks and flash cards
• Reversible cards — swap question and answer during tests
• Copy and move cards between decks
• Save & Add Another button for quick consecutive card creation
• Record voices and attach images for your cards
Study & Test
• Test mode with shuffle and progress tracking
• Test state persistence — resume your test after app restart
• Flash bot to smartly suggest cards to test you based on your behavior
Reminders
• Notification timer to periodically quiz you
• Notification time window — set start and end times for reminders
• Voice playback directly from notifications
• Create shortcut to show random card from deck for casual study (Android 8+)
Import & Export
• Easily export & share your decks to your friends
• Import and export decks in Anki .apkg format (supports Basic cards with images and audio)
AI-Powered
• Generate flash card decks from any topic using Google Gemini AI
• Transform existing decks with AI — translate, expand, create harder questions, and more
• AI model selection — choose from available Gemini models
Appearance
• Support dark mode and light mode
Licensed under GPL-3.0-only, by rh-id.
What's New in v1.11.1
Imported from the F-Droid repository index.
- Release 1.11.1+54
- Fixes:
- * Fix thread safety for RxJava subjects across all notifier classes
- * Fix race conditions in TestStateModifier database operations
- * Fix memory leak from nested RxJava subscriptions in CardItemSV and NotificationTimerItemSV
- * Fix CompositeDisposable leak in DeckItemSV, HomePage, and timer detail dialog
Version history
Jun 9, 2026 · 7.1 MB · Android API 23–36 · code 54
Imported from the F-Droid repository index.
- Release 1.11.1+54
- Fixes:
- * Fix thread safety for RxJava subjects across all notifier classes
- * Fix race conditions in TestStateModifier database operations
- * Fix memory leak from nested RxJava subscriptions in CardItemSV and NotificationTimerItemSV
- * Fix CompositeDisposable leak in DeckItemSV, HomePage, and timer detail dialog
SHA-256 b0136d15b30e0e674bbefddfda62815426c0adb76281d7ab5242ad31cdcc643d
May 29, 2026 · 7 MB · Android API 23–36 · code 53
Imported from the F-Droid repository index.
- Release 1.11.0+53
- Fixes:
- * Fix potential API key leakage in Gemini API error responses
- * Fix crash when timer is deleted between scheduling and execution
- * Fix deadlock and memory leak in notification handler
- * Fix TOCTOU race condition in AudioPlayer
SHA-256 e1a48e597c7a5ba10c4c284454cae14cc0c81c1d33b8f4b34a8d23b5e49ea1e5
May 28, 2026 · 7 MB · Android API 23–36 · code 52
Imported from the F-Droid repository index.
- Release 1.10.0+52
- Fixes:
- * Remove duplicate isReversed column to prevent startup crash
- * Use x-goog-api-key header instead of query param for Gemini API auth
- Feature:
- * Generate Deck from Existing Decks via Gemini AI
SHA-256 41bfb3145c554bb26d6f698d1f871a40f9330acb802880cc180aaad8ca0ad494
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 m.co.rh.id.a_flash_deck 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, 1.11.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Flash Deck 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 Flash Deck, and a listing is removed when the evidence for it stops holding up.
Get Flash Deck
Every source we list for m.co.rh.id.a_flash_deck 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
b0136d15b30e0e674bbefddfda62815426c0adb76281d7ab5242ad31cdcc643d
Signing certificate
ba0a843466573ee57cada3f8f01ef5244af4ec9b2b2f0f148a54702c5a2a812d
Permissions Required
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.