Yes, 准妈妈陪胎儿听故事 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.
准妈妈陪胎儿听故事 is free.
To get estimated revenue of 准妈妈陪胎儿听故事 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.