Compare software

Readlang vs Clozemaster: catalog facts
Readlang	Clozemaster
Freemium Free to start, with paid plans available.	Freemium Free to play, with a paid Pro tier that adds advanced features.
Web, Browser extension	Android, Web
Click-to-translate on any text or website Translated words saved automatically as flashcards	Vocabulary learned inside real sentences Over 170 language pairings
Best suited to learners who can already read simple texts Some features require a paid plan	Advanced features require Pro Less suited to complete beginners with no grammar basics
Web application, Browser extension	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.