Yes, JLPT Ninja is free to download, however it contains in-app purchases or subscription offerings.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
JLPT Ninja has several in-app purchases/subscriptions, the average in-app price is ¥350.75.
To get estimated revenue of JLPT Ninja app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
5 out of 5
4 ratings in Japan