I am developing an app with monthly auto renewable subscription model. I want the IAP screen to appear after the 5 onboarding slides and the IAP screen will be there until the purchase is made in order to use the app. The IAP screen will go away after the purchase is made and then user can use all the contents of the app. Will such a concept be rejected by the reviewing team? There are 1000s of apps with this concept and they are not rejected and in fact doing well on App Store.