Starting from iOS 10.3, an App can change its icon.
Icon Card: Japanese Gojuon uses this feature to display Kana (Japanese phonetic character) in the icon on Home Screen. Each time the user switches back to Home Screen, he will peek the icon, and enhance the memories.
To study Japanese Language, begin with Icon Card: Japanese Gojuon.
Try it now.
Functions：
1. Learn Kana on the Home Screen
2. Learn Kana in Today Widget
3. Flashcards learning