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Language Reactor vs Trancy: catalog facts
Language Reactor	Trancy
Freemium Free to use, with additional features in a paid tier.	Freemium The extension can be installed at no cost; check the site for current plan pricing.
Browser extension	Browser extension
Dual subtitles on Netflix and YouTube Uses real native material instead of textbook content	Bilingual subtitles on YouTube, Netflix and course platforms Subtitle reading mode with word and sentence bookmarking
Depends on third-party streaming sites that can change their players Proprietary	Pricing and plan limits are not clearly stated on the homepage Depends on the supported video sites for subtitle features
Browser extension	Downloadable app, 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
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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