Tapdaq & AppLovin can track your users In App Purchases, to pass the data do the following:
String name = ""; //Item Name
double price = 0.0; // Item Price
String currency = "GBP"; //3 Character currency code
Locale locale = Locale.getDefault(); //Locale of the device/store
Intent intent; //Intent returns by Play Store IAP activity
Tapdaq.getInstance().sendIAP(<CONTEXT>, intent, name, price, currency, locale);
//Alternatively retrieve the following data from the intent
String in_app_purchase_data = intent.getStringExtra("INAPP_PURCHASE_DATA");
String in_app_purchase_signature = intent.getStringExtra("INAPP_DATA_SIGNATURE");
Tapdaq.getInstance().sendIAP(<CONTEXT>, in_app_purchase_data, in_app_purchase_signature, name, price, currency, locale);
If you are having any problems integrating, feel free to contact us on [email protected] and we will be more than happy to help.