Everything you need tomaster vocabulary
From live transcription to spaced repetition flashcards — a complete pipeline for turning lessons into long-term memory.
Live Transcription
实时转录
Real-time speech-to-text for both you and your tutor. Perfect speaker identification, instant results.
100% Accurate Speaker ID
Our stereo audio architecture means we always know who's speaking. No machine learning guessing — deterministic identification based on audio channels.
Dual Audio Capture
Captures both your microphone and your tutor's audio from screen sharing or tab audio. Works with any video call platform.
Immediate Results
Missed that word during class? Transcripts appear as you speak so you don't miss a beat!
Chinese & English
Full support for Mandarin Chinese and English, including code-switching. Speak both languages naturally.
Smart Vocabulary Detection
智能词汇识别
AI automatically catches words you ask about during lessons. No more scrambling to take notes.
Automatic Detection
When you ask "what does X mean?" or your tutor explains a new word, our AI detects it and adds it to your queue.
One-Click Definitions
Highlight any word in your transcript to get instant definitions with pinyin and example sentences.
Vocabulary Queue
Review AI-suggested words after your lesson. Accept what's useful, skip what you know.
Multiple Sources
Words come from starred definitions, AI suggestions, document imports, and manual additions — all in one place.
老师说:这是一个很好的投资机会,对经济有帮助。
AI Lesson Summaries
AI课程总结
After each lesson, AI generates a comprehensive summary with key topics, vocabulary covered, and progress insights. Never lose track of what you learned.
Automatic Generation
As soon as your lesson ends, AI analyzes the transcript and generates a structured summary with key takeaways.
Vocabulary Highlights
See all new words covered in the lesson at a glance. Quickly add any to your flashcard deck.
Speaking Metrics
See your speaking time breakdown and track topics covered in each lesson.
Complete Lesson Archive
Every lesson is saved with full transcripts. Go back to any lesson to review or extract vocabulary.
Spaced Repetition Flashcards
间隔重复闪卡
Turn vocabulary into long-term memory with scientifically optimized review intervals.
SRS Algorithm
Based on proven spaced repetition research. Cards appear at optimal intervals — just before you'd forget them.
Smart Flashcards
Start with Chinese first and flip to reveal English with pinyin, definition and example sentences. The almighty algorithm knows when you should switch to starting with English.
Mastery Tracking
Visual progress through Learning → Familiar → Mastered tiers. Watch your retention rate climb.
Audio Pronunciation
High-quality text-to-speech for every card. Hear the correct pronunciation as you learn.
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Smart Document-to-Flashcards
智能文档转闪卡
Upload your lesson materials and let AI extract vocabulary to create flashcards automatically. Works with any Chinese learning content.
AI Extraction
Our AI reads your PDFs and identifies vocabulary words, providing pinyin and definitions automatically.
Textbook Support
Works with textbooks, worksheets, reading materials — any PDF with Chinese text.
Annotation Recognition
Our AI picks up your scribbles too. We just hope that its legible to the human eye.
Direct to Queue
Extracted vocabulary goes straight to your queue. Review, edit, and convert to flashcards.
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