app monetization2 affiliate marketing1 app store1 billing1 coupon codes1 custom stores1 digital goods1 e-commerce1 firebase integration1 goldengate1 iap manager1 in-app purchase1 ios1 mobile commerce1 mobile marketing1 mobile payment1 multi-network1 native ads1 performance enhancements1 premium features1 push notifications1 real-time news1 sdk integration1 secure transactions1 subscription1 swift1 tech updates1 unlock content1 user engagement1