Freedom251 › Language learning apps
Lingueez
What Lingueez is
Lingueez is free, open-source vocabulary software for saving, translating, practising, and tracking words across 105 languages. It runs on Android, Linux, the web, and Windows, and supports offline lessons. A configurable global shortcut captures words from anywhere for translation. Google or optional DeepL can translate, while optional OpenAI or Gemini services can add definitions and examples. Flashcards use spaced repetition, and quizzes accept multiple-choice or typed answers. The reader handles articles, web pages, Wikipedia entries, and RSS feeds with synchronized translations and audio. Excel imports are supported, with exports to PDF, CSV, Excel, MP3, and Anki-compatible formats. Desktop use works offline without an account; Android requires sign-in and synchronizes the library. Personalized review is available, but speech practice and placement tests are not. The applications use AGPL-3.0 licensing.
Who it suits
Lingueez suits learners who want free, open-source vocabulary study across desktop, web, and Android platforms. It is particularly useful for offline learning, personalized review, reading practice, and exportable study materials.
What it does well
- Free and open-source under AGPL-3.0
- Supports 105 languages
- Offline desktop lessons
- Spaced-repetition flashcards and quizzes
- Multiple import and export formats
What to know first
- No speech practice
- No placement test
- Android requires sign-in
- Some translation endpoints receive submitted text
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Free and open source · no paywalls · optional one-time contributions | Free |
As lingueez.app lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
Lingueez offers a broad vocabulary and reading toolkit without subscription charges, including offline desktop use and many export formats. Learners seeking speaking exercises or placement testing will not find those functions listed.
Facts from Lingueez's own pages
- Data use
- The privacy policy says Lingueez uses no analytics, advertising or tracking; learning progress statistics stay on the device. · lingueez.app, 12 Oct 2026
- E-reader
- The KOReader plugin can save translated words, browse saved vocabulary and review flashcards on supported e-readers. · lingueez.app, 12 Oct 2026
- Free plan
- Yes · lingueez.app, 23 Sept 2026
- Import and export
- Lingueez supports Excel imports and exports to PDF, CSV, Excel, MP3 and Anki-compatible formats. · lingueez.app, 12 Oct 2026
- License
- The applications are free and open-source software licensed under AGPL-3.0. · lingueez.app, 12 Oct 2026
- Maker
- The site identifies Yurii Lysak as Lingueez’s creator. · lingueez.app, 12 Oct 2026
- Mobile apps
- Yes · lingueez.app, 23 Sept 2026
- Offline and account
- The desktop app can be used offline without an account; the Android app requires sign-in and syncs the library. · lingueez.app, 12 Oct 2026
- Offline lessons
- Yes · lingueez.app, 23 Sept 2026
- Personalized review
- Yes · lingueez.app, 23 Sept 2026
- Placement test
- No · lingueez.app, 23 Sept 2026
- Practice
- Flashcards use spaced repetition, and quizzes support multiple choice or typed answers. · lingueez.app, 12 Oct 2026
- Product
- Lingueez is a vocabulary trainer for saving, translating, practising and tracking words across languages. · lingueez.app, 12 Oct 2026
- Reading
- The reader supports articles, web pages, Wikipedia entries and RSS feeds, with synchronized translations and audio. · lingueez.app, 12 Oct 2026
- Security
- The privacy policy says data in transit uses HTTPS/TLS, cloud records are isolated per user with Row-Level Security, and logs are redacted of secrets. · lingueez.app, 12 Oct 2026
- Speech practice
- No · lingueez.app, 23 Sept 2026
- Support
- Support is available at [email protected], and the maker offers optional one-time contributions with no subscription. · lingueez.app, 12 Oct 2026
- Third-party data
- When used, the default free Google translation and desktop read-aloud endpoints receive the text, and the policy says those endpoints are not covered by a data-processing agreement. · lingueez.app, 12 Oct 2026
- Translation and AI
- Translations can use Google or optional DeepL, while optional OpenAI or Gemini can provide definitions and examples. · lingueez.app, 12 Oct 2026
- Word capture
- Users can capture and translate words from anywhere with a configurable global keyboard shortcut. · lingueez.app, 12 Oct 2026
Where Lingueez stands on Freedom251
- Language learning apps#103 of 278