Accept payment on ios apps?

Question

is this okay to implement payment system on ios apps? I would like to make an app that can browse products on my e-commerce website then let people buy products on my app. I

Answer 1

You must use In-App Purchase via StoreKit or your app will be rejected. Implementing your own payment system violates a couple of the review guidelines, most directly:

Apps utilizing a system other than the In App Purchase API (IAP) to purchase content, functionality, or services in an app will be rejected

This of course only applies to content, functionality, or services within the app, as long a the purchase is only relevant to things outside of the app they have no stake in the purchase.