Great work !
This is a big work from you . Please add the 48-51.9 range
Yes, API 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.
API is free.
To get estimated revenue of API app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
This is a big work from you . Please add the 48-51.9 range