A free, libre, open source Hanyu Shuiping Kaoshi (HSK) training app, complete with words lists, pronunciations and quizzes for students of mandarin chinese. The app is fully ad-free and will remain so.
Full source code available here: https://github.com/Decker108/OpenHSK
Please email me feature requests and/or bugs not detected by the OS.
Tags: for hsk training