Subitise Flashcards is not free (it costs 2990.00), however it doesn't contain in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
The price of Subitise Flashcards is 2990.00.
To get estimated revenue of Subitise Flashcards app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.