首次使用——设置首位教师：First time — set up the first teacher:
WelcomePick a lesson to begin
Lv 1
Listening…
Settings
Add a free Gemini key (or any OpenAI-compatible API) to unlock unlimited free-form conversation with your AI teacher. Your API key is stored in this browser only and is never uploaded.
Get a free Gemini key ↗ — sign in with Google, tap “Create API key”, copy it, then tap the button above and paste it into API Key.
Get a free Groq key ↗ — sign in, tap “Create API Key”, copy it and paste it here. No card needed.
Learning pace
Free Chat and Live always use your AI keys — if Gemini is busy, your Groq key takes over (your chat messages are then sent to Groq).
What you tell me in chats (name, country, city, hobbies) stays on this device.
Instructions are read aloud in English; Chinese example sentences are read in Chinese. Tap the 🔊 / EN buttons on any bubble to replay.
Course progress
Clears your completed ticks, the resume point and the finished-tour flag — XP, level, streak, mistakes, saved words and settings are kept.
App version: v175
Live Voice Practice Requires an API Key
To chat with AI Live, please enter your API Key in Settings. Your key stays in this browser only.
Use AI in My Lessons
Your recordings will be sent to Groq (if you added a Groq key) or the AI provider you configured in Settings — to mark them (Android phones) and to point out which sound was off when a reading is marked wrong. Same privacy policy as your AI chats; nothing goes anywhere else.
Chinese 3 Live Practice Preview
Live Voice Practice for Chinese 3 is currently using generic Chinese 3 conversational bounds (no lesson-specific vocabulary yet).
Choose your course
Pick it once — from then on you’ll only see this textbook. You can change it any time.