simple flashcard app
About this app
📣 Simple app to manage your flashcards.
🏛️ App structure: filing boxes -> decks -> flashcards
🗃️ Filing boxes can be exported as and imported from a backup (individually or all).
🗂️ The decks of a filing box contain the flashcards.
🌈 You may use four color variants for filing boxes and decks.
📇 Flashcard values: front, back, notes (optional) and progress (integer).
🖌️ You may activate flashcard formatting in the app settings.
📎 You may link files to flashcards.
🏷️ You may add tags to flashcards.
🖨️ You may print flashcards.
▶️ From each flashcard list you may enter a query mode.
🔍 Flashcard lists for the entire collection as well as single filing boxes or decks are available. Using the “advanced query” option you may generate lists of all or some decks by tags, progress and / or last repetition.
❗ Please backup your content on a regular basis.
Licensed under GPL-3.0-only, by Jonathan Herrmann-Engel.
What's New in v3.4.10
Imported from the F-Droid repository index.
- Update dependencies.
- Start counting flashcard repetitions.
Version history
Apr 5, 2026 · 10 MB · Android API 25–36 · code 84
Imported from the F-Droid repository index.
- Update dependencies.
- Start counting flashcard repetitions.
SHA-256 4ce9a6bd1b5ae1367d2cb0779bd3b291c66a41966df472e3f186f385460d0fc4
Jan 26, 2026 · 9.9 MB · Android API 25–36 · code 83
Imported from the F-Droid repository index.
- Slight UI adjustments.
- Update dependencies.
SHA-256 f8d9bb15cc825dde4530ab0567f121bb5a11205bc58a09db567a19512ea5c46f
Oct 23, 2025 · 9.9 MB · Android API 25–36 · code 82
Imported from the F-Droid repository index.
- Simplify flashcard list statistics design.
SHA-256 3506f75f0ef51c4f99dadf76a416582cbd0467adf94b786571c348720fb4ac31
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 de.herrmann_engel.rbv 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, 3.4.9 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Really Basic Vocab 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 Really Basic Vocab, and a listing is removed when the evidence for it stops holding up.
Get Really Basic Vocab
Every source we list for de.herrmann_engel.rbv 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
4ce9a6bd1b5ae1367d2cb0779bd3b291c66a41966df472e3f186f385460d0fc4
Signing certificate
59f124e8c946131c981318d0fb9d0169a6e85551c0988ac97af029aed61797b5
Permissions Required
What each permission lets Really Basic Vocab do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
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.
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