Yes, Эндоскопическая диагностика 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.
Эндоскопическая диагностика is free.
To get estimated revenue of Эндоскопическая диагностика app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.