I haven’t tried it. My mom has tried it.
Omg
Yes, Swap 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.
Swap has several in-app purchases/subscriptions, the average in-app price is ¥334.83.
To get estimated revenue of Swap app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.