objective-c - development process similar to Zhihu's appreciation function

Question

1. Appreciation function, Alipay payment, WeChat payment, because it is a reward, there is no physical item, will the AppleStore review require you to go through the in-app purchase process? All the money is given to the author, and 30% of the in-app purchase is required. Can this bypass Apple's in-app purchase?
2. To implement the function, does the company need to sign a contract with UnionPay?

Answer 1

No need, just sign up with a third party such as Alipay and WeChat to call the payment interface.