很垃圾不好用
每次都要重新登录才能扫码
Yes, 双重预防 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.
双重预防 is free.
To get estimated revenue of 双重预防 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
每次都要重新登录才能扫码