It is a simple word card application.

You can create a word card for each item such as English words, kanji, history, etc.

In the created word card, register words composed of front/back,
You can learn like a real word card.

On the learning screen, tap the button or flick
Since you can switch words, you can learn at a good tempo.

For operating instructions of the application,
https://hirauchi-genta.com/frashcard/
You can check at.