Shadow Master
Speak & Learn — Language Mastery Through Shadowing
Shadow Master turns almost any captioned YouTube video into a complete speaking lesson. Not scripted textbook audio — real people, at real speed, on subjects you actually care about. Listen to a line, echo it back, then compare your voice against the native speaker.
Download on Google Play






Real Content
Any captioned YouTube video becomes a lesson — news, vlogs, interviews, lectures, songs. Material you would watch anyway.
Echo Shadowing
Listen to a line, record yourself with a live waveform, then play both back side by side or together. That comparison is where pronunciation changes.
Karaoke Captions
Every word highlighted in time with the speaker, with your own language above and romaji, pinyin or phonetics below.
Instant Dictionary
Hold any word for meanings, pronunciation, real example sentences and images — then save it to your deck in one tap.
Spaced Repetition
Saved words return exactly when you are about to forget them. Every card shows its stage: New, Learning, Young, Mature, Mastered.
Dictation Practice
Type what you hear. Checked forgivingly — case, punctuation and small typos never count against you, because the point is hearing the words.
How Shadowing Works
You hear a line and repeat it immediately, matching the speaker's rhythm, stress and intonation. It is how professional interpreters and actors train, and it is the fastest way to fix pronunciation and build fluent speech.
Search like you would on YouTube, paste any link, or let the library suggest videos in the language you are learning — verified by the language actually spoken, not just the subtitle track.
Each word lights up in time with the speaker. Your native language sits above the line and the romanisation below, so an unfamiliar script is never a wall.
Double-tap any line to drill it: listen, record yourself, then compare. Switch between the original speaker and a clear robot voice, and trim the line end if a caption runs long.
Hold a word for the full dictionary and save it. Your deck schedules reviews automatically so vocabulary sticks instead of fading.
Why Learners Choose Shadow Master
- 40 learning languages, with the interface itself in over 130 languages
- Every label can fade between your language and your target language, so the app teaches you as you use it
- Full right-to-left support for Arabic and Hebrew
- Playback speed control and per-line caption timing adjustment
- Streaks, daily goals and progress statistics tracked per language
- Works with your phone microphone or a headset — recordings stay on your device
- Dark, distraction-free design built for long study sessions
Languages
English, Spanish, French, German, Italian, Portuguese, Dutch, Russian, Polish, Ukrainian, Czech, Swedish, Norwegian, Danish, Finnish, Greek, Turkish, Arabic, Hebrew, Hindi, Bengali, Urdu, Tamil, Telugu, Japanese, Korean, Chinese (Mandarin and Cantonese, Simplified and Traditional), Thai, Vietnamese, Indonesian, Malay, Filipino, Swahili, Romanian, Hungarian, Bulgarian, Serbian, Croatian and more.