This document describes the Accelerate framework, which contains C APIs for vector and matrix math, digital signal processing, large number handling, and image processing.

The Accounts framework provides access to user accounts stored in the Accounts database. An account stores the login credentials of a particular service, such as Twitter, that can be used as authentication for the service. By implementing the Accounts framework into your app, you do not need to be responsible for storing account logins yourself. Instead, the user can grant access for your app to use their account login credentials, bypassing the need to type their username and password. If no account for a particular service exists in the user’s Accounts database, you can let them create and save an account from within your app.

AdColony delivers high-definition Instant-Play video ads that can be displayed anywhere within your application.

This is the iOS SDK of Adjust. You can read more about it at http://adjust.io.

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.

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.

ADTECH's integrated ad serving solutions enable web publishers, ad networks, agencies and advertisers to manage, serve and report on their online advertising campaigns – including display, video and mobile formats.

AFNetworking is a networking library for iOS and Mac OS X. It's built on top of the Foundation URL Loading System, extending the powerful high-level networking abstractions built into Cocoa. It has a modular architecture with well-designed, feature-rich APIs that are a joy to use.

AppsFlyer applies advanced attribution analytics to generate high value app users from your mobile acquisition and retargeting campaigns. AppsFlyer’s SDK is lightweight and can be integrated in minutes. It tracks and measures all your user acquisition campaigns, no matter which ad network or agency is running it.

Easy to use CFNetwork wrapper for HTTP requests, Objective-C, Mac OS X and iPhone.

In iOS and OS X, the Photos framework (formerly known as Assets Library framework) provides classes that support building photo editing extensions for the Photos app. In iOS, the Photos framework also provides direct access to the photo and video assets managed by the Photos app, including the iCloud Photo Library. Use this framework to retrieve assets for display and playback, edit their image or video content, or work with collections of assets such as albums, moments, and iCloud Shared Albums.