Choose real dialogue
Practice with YouTube or local videos you genuinely want to understand and say aloud.
Language shadowing app for iPhone and Android
Speak more naturally with videos you already love.
Shadow Flow turns YouTube and local videos into focused speaking practice for language learners. Replay one sentence, follow synced subtitles, record your voice, get AI-powered feedback, and save the phrases worth mastering.
Designed for daily speaking reps
Turn a few minutes of video into active pronunciation, rhythm, and recall practice.
No more endless scrubbing
Repeat the exact line you need instead of fighting the video timeline.
Private by design
Your practice history and voice recordings stay on your device.
How it works
From watching to speaking in three focused steps.
Repeat one line at a time
Use synced subtitles and sentence replay to copy timing, stress, and pronunciation.
Hear what to improve next
Record yourself and get AI-powered feedback on pronunciation, accuracy, and completeness.
Features
Everything you need to make shadowing stick.
Real-video practice
Train with speech that sounds like real life.
Use videos you already care about, with synced subtitles that connect listening, meaning, and speaking in one practice session.
Sentence replay
Master the line before moving on.
Replay short phrases without restarting the whole scene, so practice stays focused, quick, and easy to repeat.
AI speech feedback
Know what sounded right and what needs work.
Compare your recording with the target subtitle and review feedback on pronunciation, accuracy, and completeness, all on your device.
Private voice recording
Improve without putting your practice on display.
Record each attempt, play it back, and hear your progress. Speech feedback runs on your device, and recordings are not sent to our servers.
Personal review library
Keep the phrases that deserve another rep.
Save useful lines, tricky subtitles, and progress so your next session starts with material that matters.
Optional Google sign-in
Bring in YouTube material only when you choose.
Connect Google only if you want playlists and subscriptions available inside Shadow Flow for practice.
Trust and FAQ
Built for serious practice, not noisy learning feeds.
Who is Shadow Flow for?
Language learners who want to speak more naturally by copying real dialogue, repeating short phrases, and reviewing the lines they struggle with.
Does Shadow Flow post to YouTube?
No. Google sign-in is optional, YouTube access is read-only, and Shadow Flow does not upload, comment, edit playlists, or change your account.
Where are my recordings stored?
Your practice recordings, saved subtitles, playback progress, and core learning data stay on your device. Speech feedback is processed on device.
Do I need a Google account?
No. Google sign-in is optional and only needed if you want YouTube playlists and subscriptions available inside the app.
Start speaking today
Practice your first shadowing session in minutes.
Download Shadow Flow on iPhone or Android, choose a video, and start repeating the lines you want to sound natural saying.