Explore the tools, technologies, capabilities, and languages included in the iOS SDK that make app development possible. Some iOS SDK essentials are the Cocoa Touch frameworks that include the UIKit, GameKit, PushKit, Foundation Kit, and MapKit. These frameworks and others allow you manipulate the iPhone or iPad camera, add voice interaction using SiriKit, explore music with MusicKit, expand viewing and listening via AirPlay 2, and even add iMessage Business Chat to your application. iOS 11 added the power of machine learning with Core ML and augmented reality (AR) experiences with ARKit.