Shadow Flow: Shadow & Speak

Shadow Flow

About this app

Learn Languages with Videos
Turn videos into an interactive language learning experience.

Improve your listening, speaking, pronunciation, vocabulary, and shadowing with synchronized subtitles and instant speech feedback. Learn naturally from real conversations instead of traditional textbooks.
Whether you're learning English, Japanese, Chinese, Korean, Spanish, or many other languages, every video becomes a personalized lesson.

Key Features

🎬 Learn from Real Videos
Practice with authentic video content and perfectly synchronized subtitles.

🤖 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 with ease.

📖 Instant Word Definitions
Tap any word in the subtitles to instantly see its meaning without interrupting your learning.

⭐ Save Words for Review
Save new words and their definitions to build your own personal vocabulary list. Review them anytime to strengthen your memory and expand your vocabulary.

🔁 Replay Any Sentence
Repeat difficult lines instantly to improve listening and pronunciation.

🤖 Instant Speech Feedback
Record your voice and receive instant feedback on your pronunciation, accuracy, and completeness. Compare your speech with the target subtitle and identify areas for improvement after every practice session.

📚 Save Useful Sentences
Bookmark vocabulary, expressions, and useful phrases for later review.

🎤 Build Your Personal Speaking Library
Save your recordings alongside your favorite sentences and review your speaking progress anytime.

⏯ Smart Playback Controls
Pause, replay, slow down, or jump between subtitles to learn at your own pace.

📈 Track Your Progress
Stay motivated with learning streaks, practice goals, and measurable improvements over time.

Privacy First
Your recordings stay on your device.
• Audio recordings are stored locally.
• No account is required for speaking practice.
• You control your own learning data.
• Practice with confidence knowing your recordings remain private.

Perfect For
• Learning English and other languages
• Pronunciation practice
• Listening comprehension
• Speaking fluency
• Vocabulary building
• Shadowing practice
• Everyday conversations

Why You'll Love It
• Learn from authentic videos
• Tap any word for an instant definition
• Save words and definitions for later review
• Instant pronunciation and speech feedback
• Practice listening and speaking together
• Improve naturally through repetition
• Save and review useful sentences
• Supports multiple languages
• No account required

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

What’s new

Added support for both US and UK pronunciations.
Tap any word in subtitles to instantly view its definition and hear its pronunciation.
Added AI pronunciation scoring for individual words.
Improved AI pronunciation scoring for more accurate feedback.
Performance improvements and bug fixes.