the date to submit my app to the stores get's closer (slowly ;-) ) but I would like to know if there are any helping libraries on the topic of Licence Checking with the App Stores and handling InApp Purchases.
I have seen that there are Xamarin Components for IAPs for Android and iOS but not for Windows Store.
Do I have to check with the App Stores if this App copy was licenced or can I be sure that the Store App will only install payed Apps?
I have not found any libraries for licence checking. Isn't there any?