QChinese is an Android app developed by CuongLam that offers a complete curriculum from HSK1 to HSK6. It includes 135 tests with over 10,000 questions, a vocabulary of 5,000 common words from HSK1 to HSK6 and 11,000 words from the new HSK7 to HSK9. In addition, it has a dictionary of over 17,000 words covering all fields and areas, with more than 17,000 audio pronunciations in standard Beijing Mandarin.

The app also provides over 3,000 instructional videos that demonstrate how to write Chinese characters by hand, with an average of 10 strokes per character, totaling more than 30,000 strokes in total.

With QChinese, learning Chinese is more accessible and convenient as it eliminates the need for physical books. The app allows users to easily do exercises and get detailed results, answers, and dialogues in just one second. It also provides a quick vocabulary search feature and supports flashcards for easy and convenient learning.