Train your ears.
Shadow like a native.
Chorus turns any YouTube video or podcast into a listening lesson — AI subtitles, sentence-by-sentence shadowing, and an AI tutor that explains every line.
Download on theApp StoreStart free — 60 minutes of AI subtitles every month. No card required.
How it works
Three steps from “I watched something” to “I understood every word”.
Import anything
Drop a YouTube link, a lecture recording, or your own audio. AI subtitles come back in seconds — with timings.
Shadow line by line
Listen, recall, speak. Four Echo modes train your ears and your mouth on every sentence.
Understand, don’t guess
Tap any sentence for translation, vocabulary and grammar notes from the built-in AI tutor.
Everything you need to listen deeply
One app instead of five tools.
AI Subtitles
YouTube, lectures, podcasts — transcribed in seconds, timed and ready to study.
Echo Shadowing
Listen · Recall · Speak · Play. Four modes that force ears and mouth to keep up.
AI Explain
Translation, vocabulary and grammar for any sentence, on tap.
Curated Podcasts
30 shows in Japanese, English, German, French, Spanish, Chinese and Korean.
Your ears get better every day.
Free to start. 60 minutes of AI subtitles every month — no card required.
Download on theApp Store