Yes, カードリーダー ネクストICカード is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
カードリーダー ネクストICカード is free.
To get estimated revenue of カードリーダー ネクストICカード app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.