German for beginner with many categories

If you who always search and learn a quiz app like these, this app is for you

1. German Flash card app.
2. German Quiz app.
3. Easy German Learning app.
4. Learn German.
5. German Question app.
6. Guess the Korean Word app.

Main Features:
・Breaking up the content of the category: makes practice more interesting and less boring.
・Flashcard for all vocabulary
・Learn by Quiz all daily words