Core Audio is the digital audio infrastructure of iOS and OS X. It includes a set of software frameworks designed to handle the audio needs in your applications. Read this chapter to learn what you can do with Core Audio.

The Core Motion framework lets your application receive motion data from device hardware and process that data. The framework supports accessing both raw and processed accelerometer data using block-based interfaces. For devices with a built-in gyroscope, you can retrieve the raw gyro data as well as processed data reflecting the attitude and rotation rates of the device. You can use both the accelerometer and gyro-based data for games or other apps that use motion as input or as a way to enhance the overall user experience.

Core Text is an advanced, low-level technology for laying out text and handling fonts.

Core Video provides a pipeline model for digital video. Partitioning the processing into discrete steps makes it simpler for developers to access and manipulate individual frames without having to worry about translating between data types (QuickTime, OpenGL, and so on) or display synchronization issues. Applications that do not need to manipulate individual video frames should never need to use Core Video directly.

Create, distribute, and update passes for the Wallet app. Request and process Apple Pay payments in your app. The PassKit framework lets you add and manage passes in the user’s Wallet app. The Wallet app allows users to organize their boarding passes, tickets, gift cards, and loyalty cards. Using the PassKit framework, you can add passes to Wallet and have these passes appear on the user’s lock screen based on the time and place when the pass is relevant. You can also update a pass’s content using push notifications. Additionally, Wallet manages the user’s credit cards for Apple Pay. The PassKit framework also supports in-app payments for physical goods and services using Apple Pay. For digital goods and services delivered within the app, see In-App Purchase Programming Guide instead.

The powerful programming language that is also easy to learn. Swift is a powerful and intuitive programming language for macOS, iOS, watchOS and tvOS. Writing Swift code is interactive and fun, the syntax is concise yet expressive, and Swift includes modern features developers love. Swift code is safe by design, yet also produces software that runs lightning-fast.

The UserNotifications framework (UserNotifications.framework) supports the delivery and handling of local and remote notifications. You use the classes of this framework to schedule the delivery of local notifications based on specific conditions, such as time or location. Apps and extensions also use this framework to receive and potentially modify local and remote notifications when they are delivered to the user’s device.

AdMob has been rebuilt, leveraging the best of Google's ad platforms. It's designed for app developers, with an intuitive UI to help you start earning from your app quickly, create campaigns in minutes to acquire new users, and gain insights into your app's performance.

Adobe mobile services give mobile teams a powerful, intuitive way to understand and improve app engagement. Discover when and where users launch your app, which parts of your UX are working to increase ROI, and where the opportunities for monetization lie. Only Adobe mobile services give apps the combined strength of Adobe Analytics, Adobe Media Optimizer, and Adobe Target. App-centric user interface: The mobile services dashboard is specifically designed for mobile teams, so you can quickly and intuitively analyze and optimize your apps from one place. App analytics: Get comprehensive reports on key metrics and KPIs, including user engagement, app store performance, path analysis, GPS location analysis, and more. App optimization: A seamless workflow from analytics and insight to optimization helps you improve engagement and app monetization, fast. Geo-location analytics and targeting: Discover where users are launching your app, so you can personalize content and offers based on GPS location or even specific points of interest. Single SDK: With just one SDK for Adobe Marketing Cloud, you can efficiently collect and deliver app data across solutions.

The Ad Support framework provides apps with access to an identifier that can be used only for serving advertisements, as well as a flag which indicates whether a user has limited ad tracking. Accessing the advertising identifier requires apps to read and honor the opt-out flag.