
Learn Chinese by building real sentences, practice high-frequency sentence patterns with instant AI feedback. No signup required. Start instantly.
Most apps teach vocabulary. We teach how to form sentences.

Learn a pattern and understand its structure and real-world use cases.

Build sentences and actively produce Chinese using the new pattern.

Receive instant AI feedback and fix mistakes before they become habits.

Review with smart spaced repetition (FSRS) and remember long-term.
Learn the 100 most essential Chinese sentence patterns that form the foundation of natural conversation.



Learn smarter with flashcards! Powered by the advanced Free Spaced Repetition Scheduler (FSRS), you'll review each sentence just before you're about to forget it — no wasted time, no cramming.
Start with a 7-day free trial with the Premium Plan to access all features. Afterwards, continue with the Free Plan for basic features or upgrade to Premium to unlock the full power of DouDou Chinese.
Get your 7-Day Free Trial today and start mastering essential Chinese sentence patterns with DouDou Chinese. Download now and take the first step towards fluency!
Real feedback from people learning Chinese with DouDou. We love hearing how the app fits into everyday life.
I've tried many Chinese apps out there and DouDou is the only one that actually stuck. The pattern-based approach finally made grammar click for me — I went from "just vocab" to holding real conversations in a few months.
Finally an app that teaches how people actually speak. I was so tired of textbooks drilling 请问您贵姓 — nobody talks like that. DouDou taught me the sentence skeletons real conversations run on, and suddenly I could follow my relatives without nodding and pretending.
The audio quality is outstanding and the spaced repetition actually works. I use it on my commute every day. My colleagues in Shanghai are always surprised by my tones — couldn't recommend it more highly.
DouDou Chinese (句式) is a mobile app that teaches Mandarin Chinese through the 100 most essential sentence patterns. Instead of drilling isolated vocabulary, it has you actively build sentences with each pattern and gives instant AI feedback, then schedules review with the FSRS spaced repetition algorithm so you retain what you learn.
Most apps teach vocabulary in isolation. DouDou Chinese teaches sentence patterns — the reusable grammatical structures that natural conversation is built on — and has you actively produce Chinese sentences with those patterns rather than just recognizing flashcards.
Yes. The Free plan includes spaced repetition flashcards, spaced repetition audio loops, sync across devices, and basic settings. A 7-day free trial of Premium is available, which adds AI tutor chat, unlimited card access, background audio, and more. Premium is $5/month after the trial.
FSRS (Free Spaced Repetition Scheduler) is the algorithm DouDou Chinese uses to schedule flashcard and audio reviews. It times each review to happen just before you're likely to forget the sentence pattern, so you spend less time reviewing material you already know.
No signup is required to start. You can begin practicing sentence patterns instantly after downloading the app.
Yes, DouDou Chinese is available on the Apple App Store for iOS and on Google Play for Android.
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