I have had no problem distributing my Xamarin Forms Android apps through both Google Play Store and the Amazon store... until now.
This time I am offering a premium upgrade and the app needs to know where it was purchased from so that it can buy the premium upgrade from the correct store. Is there a way to determine, not the device nor the platform, but where the app was purchased?
I doubt I am the first one to encounter this problem, but I couldn't find a solution. Appreciate any help I can get. Thanks.