title: How to remove ads when user buys in-app purchase
body: <p>I have an app that I want users to be able to pay a small fee to remove ads from. I figure the best way to do this (the app needs to remain free) is via an in-app purchase. I'm wondering however the best way to go about removing the ads and how to do it once the user has bought the upgrade. Any help or advice would be great thanks.</p>