Terms of use

Last updated: 10 October 2026

Zuno helps you learn Mandarin vocabulary and grammar. By using it you agree to these terms.

Zuno is provided as is, without warranty. It is a study aid, not an official HSK preparation guarantee.
Vocabulary definitions are adapted from CC-CEDICT and CFDICT (CC BY-SA); the HSK 3.0 word list comes from complete-hsk-vocabulary (MIT License). Sentences, grammar drills and lessons are original Zuno content.
Tips are voluntary, non-refundable through Zuno, and unlock no content. Refunds follow Apple's policies.
Don't misuse the app or try to reverse-engineer it.
Apple's standard Licensed Application End User License Agreement also applies.