To build a solid foundation for study, you need to be familiar with related terms.
It also includes quizzes to test your common language / literacy.

[Recommended for these people]
Students interested in studying Korean,
Candidates preparing for civil service exams,
It is recommended for all students who are educated after becoming adult.

A word from the developer]
Paid apps have ads removed and available offline (with some features).
Do not exchange data between paid and free apps

If you are a burdened paid app
Please use the free app.

To provide high quality content and maintain the server
The free app inevitably contains numerous ads.

Do not exchange data between paid and free apps