This is an interesting article and everyone who uses in-app purchases should understand how they work. However, a lot of work has already been done by other de

This is an interesting article and everyone who uses in-app purchases should understand how they work. However, a lot of work has already been done by other developers and it's wise to reuse something such as CargoBay https://github.com/mattt/CargoBay https://github.com/mattt/CargoBay.