Create custom dictionaries and retain words with puzzles.
About this app
Keep track of your growing vocabulary through custom dictionaries.
Every word is defined by you! Each definition can be adapted over time as your understanding improves.
Features:
• Specify part of speech, definitions, examples, and pronunciation for every word.
• Paste excerpts into the reader to see existing definitions and easily add new words.
• Practice with puzzles that test your knowledge, spelling, and ability to recall words.
• Specify your confidence level to affect how often a word appears in practice games.
• View language stats and share with friends.
Licensed under GPL-3.0-only, by Arthur Cosentino.
What's New in v0.29.6
Imported from the F-Droid repository index.
- - Fixed tutorial text failing to load
- - Fixed missing `:` after Longest Word in statistics
- - Fixed Read tab treating known compound words as new words
- - Fixed error from leaving recording without stopping it
- - Adjusted padding for spelling in definition bubbles
Version history
Dec 1, 2025 · 91 MB · Android API 24–35 · code 58
Imported from the F-Droid repository index.
- - Fixed tutorial text failing to load
- - Fixed missing `:` after Longest Word in statistics
- - Fixed Read tab treating known compound words as new words
- - Fixed error from leaving recording without stopping it
- - Adjusted padding for spelling in definition bubbles
SHA-256 e8e1a5c67ad043e2046638fb89c38ee76feb24cf405b1612740a48afc1396fd8
Nov 23, 2025 · 90.9 MB · Android API 24–35 · code 57
Imported from the F-Droid repository index.
- - Fixed Rush practice mode capping total time at 10s
- - Fixed Crossword's concede button pressable after the game ends
- - Fixed text rendering under interactible elements in definition lists
SHA-256 9859d6600f01fa2836ae6e1c3ca8fdda09949ed8ae2d019e0a553331cb9c2fc3
Nov 22, 2025 · 90.9 MB · Android API 24–35 · code 56
Imported from the F-Droid repository index.
- - Fixed pronunciation recordings failing to save
- - Fixed unpressable pronunciation playback button in definition list
SHA-256 bc3f34e8f59c9c41b995b7e7508b5186292163f0c66d867675474ad441342629
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- 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 dev.arthurcose.languagedex 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, 0.29.5 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Language Dex 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 Language Dex, and a listing is removed when the evidence for it stops holding up.
Get Language Dex
Every source we list for dev.arthurcose.languagedex 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
e8e1a5c67ad043e2046638fb89c38ee76feb24cf405b1612740a48afc1396fd8
Signing certificate
8ed759442c6492fd0b492b73fbc8c0c6e45f065fc5c111e24a4b4c935981a1e2
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.
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