Chorus: AI Listening Lab
Shadowing with AI subtitles
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Turn podcasts, videos, and voice memos into language lessons with word-level subtitles, AI explanations, and Echo record-and-compare practice.
Chorus is an AI listening lab for people who learn languages by ear.
Import what you already want to listen to — a podcast episode, a YouTube video, a voice memo, a video from your library — and Chorus turns it into a shadowing lesson: word-level subtitles, reading aids, a translation into your native language, and an AI tutor that explains the exact sentence you are stuck on.
LISTEN IN THREE LAYERS
The original line, exactly as spoken. A reading aid above each word — furigana for Japanese, romanization where it helps. Translation in your native language only where you need it, so you can read the original first and check yourself after.
PRACTISE WITH ECHO
Loop a single line and say it out loud. Listen, Recall, Speak and Play modes drill one sentence until it feels natural — or turn on Auto Echo and shadow hands-free, then record yourself and compare.
ASK WHY, NOT JUST WHAT
Tap Explain on any line: a plain-language translation, a vocabulary list with readings, the grammar patterns actually at work in that sentence, and notes on why it is phrased that way. Then ask your own follow-up questions.
FIND SOMETHING WORTH LISTENING TO
30 hand-picked podcasts in Japanese, English, German, French, Spanish, Chinese and Korean — beginner, conversation and exam prep.
IMPORT FROM ANYWHERE
- YouTube URL: play it in the app, no download needed
- Files: audio and video from your device
- Photo album: videos from your library
YOUR AUDIO STAYS YOURS
Playback happens locally. Playing a file you imported never requires an account. Sign in only for AI subtitles and explanations, and your allowance follows your account across devices.
FREE AND SUBSCRIPTION
Every account starts with 60 minutes of AI subtitles and 20,000 characters of translation — enough to hear what the app actually does.
Basic Monthly (1 month): 5 hours of subtitles and 300,000 characters of translation per month.
Pro Monthly (1 month) and Pro Yearly (1 year): 30 hours of subtitles per month, unlimited translation and explanation.
Subscriptions renew automatically until cancelled; manage or cancel in your App Store settings. Prices are shown in your local currency before you buy.
Privacy Policy: https://ace.ningxiaochen.com/chorus/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Support: https://ace.ningxiaochen.com/chorus/support
The developer, 丰全 岳, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 丰全 岳
- Size
- 11.1 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Yearly $36.99
- Pro Monthly $4.99
- Basic Monthly $0.99
- Copyright
- © 2026 Fengquan Yue