Start free in your browser today. Your words, streak and progress sync to the web Learning Center — and now to your iPhone.
Dual subtitles, click-to-translate, IPA pronunciation, AI grammar and flashcards — on YouTube, Netflix and any website. Available now, free.
Get the Extension — FreeTake your words and review anywhere.
Live on the App Store now — Android coming soon.
Scan to install on iPhone
Review flashcards, track streaks and manage your subscription in the Learning Center.
Netflix can't show two subtitles at once natively — but a free Chrome extension can. 2026 setup guide for bilingual subtitles on Netflix.
Turn YouTube into your best English teacher. A practical guide to choosing channels, using subtitles effectively, and building vocabulary from videos you actually enjoy.
Honest comparison of the top Language Reactor alternatives in 2026 — Trancy, Migaku, Linglass, InterSub and more. Features, pricing, and which one fits your workflow.