Through [Settings],
You can add or delete courses by yourself.
You can add or delete questions by yourself.
The question types are divided into error-prone, typical and difficult.

Through [Review],
Able to automatically count the number of reviews.
It can be reviewed according to the year and month, the type of the question, the number of reviews, etc.
Ability to review and test the learning effect by randomly querying questions.

This application corresponds to English, Japanese, Chinese Simplified, Chinese Traditional Chinese Traditional.