Shadow Flow

Learn languages from real videos with interactive subtitles, speech scoring, and instant feedback to improve your pronunciation and speaking.

Learn Languages with Videos

Turn videos into an interactive language learning experience.

Shadowflow helps you improve listening, speaking, pronunciation, vocabulary, and shadowing using synchronized subtitles and AI-powered speech analysis. Learn naturally from authentic conversations instead of traditional textbooks.

Whether you're learning English, Japanese, Chinese, Korean, Spanish, or many other languages, every video becomes your personal language lesson.

Key Features

Learn from Real Videos

Practice with authentic videos and perfectly synchronized subtitles to learn how people actually speak.

AI Pronunciation Assessment

Record your speech and receive instant pronunciation feedback.

For English, Shadowflow provides:

• Pronunciation Score
• Fluency Score
• Rhythm Score
• Stress Analysis
• Completeness Score

Understand not only what needs improvement, but also how to improve.

Phoneme-Level Pronunciation Feedback (English)

Go beyond basic speech recognition.

See exactly which English sounds need practice with:

• IPA pronunciation
• Individual phoneme analysis
• Articulation guidance
• Pronunciation tips

Focus on the sounds that matter and improve more efficiently.

Interactive Subtitles

Follow subtitles in your preferred language and understand every sentence more easily.

Instant Word Definitions

Tap any word to instantly view its meaning without interrupting your learning.

Build Your Personal Vocabulary

Save new words and definitions for later review, and build a vocabulary library that grows with you.

Replay Any Sentence

Repeat difficult sentences instantly to improve listening, pronunciation, and speaking confidence.

Record and Compare Your Speech

Practice sentence by sentence.

Compare your pronunciation with the original audio and receive AI-powered feedback after every recording.

Save Useful Sentences

Bookmark useful expressions, vocabulary, and example sentences for future review.

Build Your Personal Speaking Library

Keep your recordings together with saved sentences to review your progress anytime.

Smart Playback Controls

Learn at your own pace with:

• Pause
• Replay
• Slow playback
• Jump between subtitles

Track Your Progress

Stay motivated with:

• Learning streaks
• Practice goals
• Speaking history
• Vocabulary growth

Privacy First

Your recordings stay on your device.

• Audio recordings are stored locally.
• No account is required for speaking practice.
• Your learning data remains under your control.
• Practice with confidence knowing your recordings stay private.

Perfect For

• Learning English and other languages
• Shadowing
• Listening comprehension
• Speaking fluency
• Vocabulary building
• Everyday conversations

Why Choose Shadowflow?

• Learn from authentic videos
• AI-powered pronunciation assessment
• English phoneme-level pronunciation feedback
• Interactive subtitles with instant word definitions
• Save words, sentences, and recordings
• Improve listening and speaking together
• Shadow native speakers naturally
• Supports multiple languages
• Works without creating an account

Start learning with videos today and turn every sentence into an opportunity to speak with confidence.