Introduction

Framework
/System/Library/Frameworks/StoreKit.framework
Header file directories
/System/Library/Frameworks/StoreKit.framework/Headers
Companion guide
Declared in
SKDownload.h
SKError.h
SKPayment.h
SKPaymentQueue.h
SKPaymentTransaction.h
SKProduct.h
SKProductsRequest.h
SKReceiptRefreshRequest.h
SKRequest.h
SKStoreProductViewController.h

The Store Kit framework provides classes that allow an app to request payment from a user for additional functionality or content that your application delivers.