card.io shouldn't be used for in-app purchases (Apple's StoreKit works quite well there), but for mobile commerce: selling goods, travel purchases, daily deal s

card.io shouldn't be used for in-app purchases (Apple's StoreKit works quite well there), but for mobile commerce: selling goods, travel purchases, daily deal sites, local services, and the like. These are all places where commerce is taking place outside of the App Store. (edited to add that this is Mike from card.io)