Features

Everything you need tomaster vocabulary

From live transcription to spaced repetition flashcards — a complete pipeline for turning lessons into long-term memory.

Core Feature

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.

Live
AI-Powered

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.

Vocab Queue3 new

AI-Powered

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.

AI Lesson Summarygenerating...
AI
Memory Science

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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Productivity

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.

开始学习

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