Stop paying for English classes.
Turn any YouTube video into an English listening lesson.
Loop the sentence you almost understood, read along with captions that actually make sense, and save new words as flashcards — in your browser and on your phone.
From “what did they say?” to “I got it.”
Meet Tina.
Your words come alive.
Not just any AI. Tina is trained to put the vocabulary in your flashcards to work, in live conversation, by text or by voice.
- Built around your flashcards
- Starts from your video
- Text and audio
- Says it like a native
Up and running in under a minute
- 1
Add LangTune
Install the Chrome extension, the Android app, or both.
- 2
Open a YouTube video
The panel appears on the watch page; in the app, paste the link.
- 3
Loop, capture, practice
Mark the parts to master and save words as you go.
- 4
Keep it in sync
Sign in and everything follows you between devices.
Free is the real thing. Premium is a bonus.
Everything you need to practise with YouTube is free, with no card and no trial clock. Premium only adds more of Tina.
Free
US$ 0forever
- Loops, smart captions and listening-first practice
- Unlimited flashcards, saved with their sentence
- Chrome extension and Android app, one account
- 3 study plans
- A monthly allowance to chat with Tina
OptionalPremium
Free while we launchin beta
- Everything in Free
- Much more time with Tina every month
- Tina's AI voice, like a voice message
- Unlimited study plans
- AI-written examples for your words
Open the app 5 days in a row, then ask for Premium from the app or the extension. We review each request by hand and turn it on for you.
Practice wherever you watch.
Same account, same loops and flashcards on both — pick where you want to start.
Turn the YouTube you already watch into practice.
A panel appears on every YouTube video. Nothing to open, nothing to paste.
Add to ChromeStop losing the words you almost understood.
Add LangTune to Chrome or your phone and start practicing on the very next video you watch.