There is a "level mode" that you can study alone and a "rank mode" that competes with records.

[Level Mode]
> Flag (100) and capital (100) questions (total 200 levels)!
> The problem is randomly generated by difficulty and can be learned infinitely!

[Rank Mode]
Infinite game until the best record!

[ Three Kinds of Problems ]
1. OX
2. Selecting a right picture
3. Selecting a right answer in 4 questions

[Simple design to facilitate learning]

[Efficiently study with wrong answer notes]

[Perfect support for Korean, English, and Japanese]