HelloChinese Pro is an advanced version of the popular language learning app designed specifically for Vietnamese speakers. It offers a rich array of lessons and features tailored to help users master Mandarin Chinese effectively. The app is structured to cater to learners starting from scratch and those aiming to conquer HSK Level 4, providing a well-rounded educational experience.

Key features include over 2000 short clips for listening and pronunciation practice, 200 detailed grammar lessons, and an advanced speech recognition function to perfect pronunciation. Users can enjoy a hands-on approach to learning Chinese characters with a unique handwriting feature. The app also supports offline learning and allows customization of study goals, making it a versatile tool for anyone looking to learn Mandarin at their own pace.