Flashcards "Yomo-Yamo"

"Yomo-Yamo" means "4 directions, 8 faces" in Japanese.
"Yomo-Yamo" is a flashcard application which can handle up to 8 faces (sides), unlike ordinary 2 sides (front side and back side).
For the moment, the manual and sample data are only available in Japanese, although the application works on any language. X(
Sorry!