The app offers two traditional Japanese card games, Koi-Koi and Hana-Awase, with customizable backgrounds, card types, and music. Players can challenge five distinct opponents and adjust game rules for a personalized experience.
The app presents news and topics from seven media outlets. It offers articles on society, entertainment, culture, business, IT, and paranormal phenomena.
The app combines the tactile experience of paper flashcards with digital efficiency. It features a scientific approach to learning, automatically presenting difficult cards at optimal times.