Learn English from the YouTube videos you already watch
Subtys puts dual subtitles on every YouTube video. Tap a word to save it, then lock it in with spaced-repetition flashcards and quick games.
Works on any YouTube video · 6 study languages
and that's how habits actually stick
ось так звички й закріплюються
How it works
Three steps, zero homework.
Watch with dual subtitles
Turn on Subtys and every YouTube video shows the English line with your language right underneath — in real time.
Tap a word to save it
Click any word, or drag to grab a whole phrase, to add it to your dictionary together with the sentence it came from.
Study & play
Saved words flow into Anki-style review and four mini-games, so they actually stick.
See it in action
Dual subtitles on YouTube
Practice games
Spaced-repetition review
The browser extension
Your YouTube turns into an English lesson.
Dual subtitles
Original English on top, your language below — synced to the video.
Click to save
One tap saves a word; drag to save a whole phrase with its context.
6 study languages
Translate into Ukrainian, Russian, Spanish, German, French or Polish.
Fast & free
Only the lines you watch get translated, so it stays quick and free.
and that's how habits actually stick
ось так звички й закріплюються
Learn by playing
Four quick games on your own words — each one keeps your streak alive.
Match
Pair each word with its translation against the clock.
Listening
Hear a word, then pick the one you heard.
A full study app
Everything you save, organized and ready to review.
Review
Anki-style spaced repetition with four modes: flashcards, typing, choice and cloze.
My Words
Every word you saved, with its translation, context and video source.
Sources
Browse the YouTube videos your words came from.
Find New
Get going fast with irregular-verb and common-word decks.
Dashboard
Streaks, XP, achievements and a 14-day activity heatmap.
Learn in your language
The interface speaks three languages; translate English into six.
Interface
Translate English into
Start learning from your next video
Add the extension, open any YouTube video, and start collecting words in minutes.