Compare software

Readlang vs Language Reactor: catalog facts
Readlang	Language Reactor
Freemium Free to start, with paid plans available.	Freemium Free to use, with additional features in a paid tier.
Web, Browser extension	Browser extension
Click-to-translate on any text or website Translated words saved automatically as flashcards	Dual subtitles on Netflix and YouTube Uses real native material instead of textbook content
Best suited to learners who can already read simple texts Some features require a paid plan	Depends on third-party streaming sites that can change their players Proprietary
Web application, Browser extension	Browser extension
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	Needs internet
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.