Yes, 宝宝启蒙识字 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.
宝宝启蒙识字 has several in-app purchases/subscriptions, the average in-app price is 114.33 ฿.
To get estimated revenue of 宝宝启蒙识字 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.