Yes, Студия йоги «Дыхание» 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.
Студия йоги «Дыхание» is free.
To get estimated revenue of Студия йоги «Дыхание» app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.