Does anyone know using the Android BillingLibrary 4 if you can work out when the user purchased the app programatically within the app?
Or how the app was installed / obtained via Promo code, paid or free?
Does anyone know using the Android BillingLibrary 4 if you can work out when the user purchased the app programatically within the app?
Or how the app was installed / obtained via Promo code, paid or free?