We are implementing In-App purchases for DLC. I have a few questions regarding this where the documentation is not so clear: 1. In the API docs a difference is made between a In-App purchase and a subscriptions. On the back-end it seems as though we can only add subscriptions. However our DLC would not be a subscription ideally (it is a one-time buy thing). What is the correct way to go about this? 2. How do we test the In-App purchases with our developer account?