Offline Dictionaries
About this app
OSS‑Dict is a fast, privacy-friendly offline dictionary reader — a modern fork of Aard 2 with Material design and enhanced features for comfortable reading and lookup.
Highlights
* Blazing fast searches: punctuation, diacritics and case insensitive — find entries instantly. * Bookmarks & history: save and revisit important articles quickly. * Dictionary management: import, enable/disable and organize multiple dictionary files. * Customizable article appearance: add your own CSS to change fonts, colors and layout. * Beautiful math rendering: scalable, styleable formulas that look great on any screen. * Random article for discovery, volume-button navigation, and fullscreen reading mode. * Clipboard auto-paste and easy external link sharing for fast lookups from other apps.
Why OSS‑Dict? OSS‑Dict is designed to work entirely offline — your dictionaries stay on your device for fast lookups and better privacy. It’s lightweight, configurable, and ideal for travelers, students, and anyone who needs reliable dictionary access without an internet connection.
Network access The app requests the INTERNET permission for internal use by the built-in renderer and to open external links. This permission is not required for core dictionary lookups — the app functions offline with local dictionary files.
Open source OSS‑Dict is open source and available on GitHub. Contributions, bug reports and feature requests are welcome.
Get started Install or import your offline dictionaries, customize the look with CSS if you like, and start searching — fast and offline.
Licensed under GPL-3.0-only.
What's New in v2.0.6
Imported from the F-Droid repository index.
Version history
Jun 3, 2026 · 2.8 MB · Android API 24–36 · code 79
Imported from the F-Droid repository index.
SHA-256 522db05633e6f32a74ce029ab228dd7f92bebd4f274bb675eb672d513c2c6523
May 30, 2026 · 2.8 MB · Android API 24–36 · code 78
Imported from the F-Droid repository index.
- Bug fixes:
- - bookmarks/history lost on restart
SHA-256 70d1439d812ade59e90685fa256bbc158f2976eb576a95e8594300a51220038a
May 29, 2026 · 2.7 MB · Android API 24–36 · code 77
Imported from the F-Droid repository index.
- Bug fixes:
- - broken production build
- - reduce(drastically) APK size by using android provided icu library
SHA-256 8f64d7acd834c40b838b2be06870f00856e9067a4186e59d6f8aaa7df8901b61
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 com.akylas.aard2 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, 2.0.5 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall OSS-Dict 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 OSS-Dict, and a listing is removed when the evidence for it stops holding up.
Get OSS-Dict
Every source we list for com.akylas.aard2 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
522db05633e6f32a74ce029ab228dd7f92bebd4f274bb675eb672d513c2c6523
Signing certificate
50c3301e181970be7d50b4cd51e44060db6876ebf6adb02e48336db4048e5757
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
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