Yes, 工程相机 is free to download, however it contains in-app purchases or subscription offerings.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
工程相机 has several in-app purchases/subscriptions, the average in-app price is ¥60.33.
To get estimated revenue of 工程相机 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
4.63 out of 5
160 ratings in China