Pay for a physical product with in-app purchase

Question

I am a complete novice and have no technical skills and little knowledge concerning iphone app development an in-app / itunes store purchases.

But I have been playin

Answer 1

Even if allowed, you'd lose 30% of your revenue to Apple using in-app purchase.

There are point-of-sale apps for iPhone that allow you to swipe credit cards. One of the Twitter founders has a startup called Square that'll be doing this. If you wanted it to be an app that users could install themselves, though, you'd likely be best off doing a custom one and hitting a payment gateway in the backend (Chipotle's app is a good example of this).