クイズのみ
値段が高すぎる。
Prepare for the exam
How to change the language?
软件不完善
没有选择语言，没有一个穴位的详解
not a challenge
this app is way too easy, it gives you only a few options so it is easy to guess the point, and I can't see any option to make it more difficult ... waste of $9.99.
