OptimalChinese

Learn Chinese by reading sentences you can actually understand. Most apps show you a word, then a sentence full of other words you haven't met yet. OptimalChinese does the opposite. Every sentence you see is built from exactly what you already know — plus one new notion. You will never encounter new notions unless you explicitly learn one. WHAT'S INSIDE • A spaced-repetition system built on FSRS-6, scheduling each character, reading and meaning separately, so you review what's actually weak. • Sentences generated around your own vocabulary, refreshed each review, so you never memorise one sentence instead of learning the word. • HSK 1-5 chapter vocabulary, with lessons that teach the words of each 课. • A full Chinese dictionary that runs on your device — search works offline, with frequency data from a real corpus. • Native audio for words and sentences, plus listening review. • An AI tutor that answers questions about the sentence in front of you. • Your own cards: type them, paste them from a teacher, or import an Anki deck. They schedule alongside everything else. • A classroom, where a teacher shares a list with a student through a private link. • Handwriting and tone-aware readings, so pronunciation is part of the card rather than an afterthought. HOW IT WORKS Tell it how many minutes a day you have. It builds a pace you can hold and tells you honestly when you'll reach each level. Study on your phone, keep going on your laptop — everything syncs, and the app works offline. SUBSCRIPTION OptimalChinese is a subscription with a 7-day free trial. Cancel any time before it ends and you're not charged. Privacy: no ads, no advertising ID, and analytics you can turn off. optimalchinese.com/privacy