App Services, Foundation & Diagnostics

MetricKit collects on-device performance metrics and diagnostic reports from an app: CPU time, launch and resume timing, disk and memory usage,…

AutomaticAssessmentConfiguration configures locked assessment sessions on Apple platforms, restricting access to system features and other apps…

The standard library's collection and sequence machinery: the protocols and adapter types that define how values are iterated and how spans of…

Observation provides the tracking machinery behind the @Observable macro, watching property access and mutation on reference types so dependents…

Core Data is Apple's object graph and persistence framework.

Photos (PhotoKit) is Apple's framework for reading, writing, and managing the user's photo and video library, including assets, collections, and…

AppManagedFeatures is an app extension point for feature activation.

Foundation provides base types and services for Apple platform code, including value types like Data, resource loading through Bundle, and…

PhotosUI provides SwiftUI and UIKit components for picking and displaying photo library content, including the system photo picker and views for…

_Concurrency is the Swift standard library module for structured concurrency: async/await, tasks, task groups, and the cancellation machinery that…

ManagedApp handles managed app configuration and feedback delivered by MDM.

StickerKit provides interfaces for editing stickers and avatars on Apple platforms, including an avatar editor view controller surface implied by…

_PhotosUI_SwiftUI is a Swift cross-import overlay, not a standalone framework.

CoreFoundation is Apple's C-based framework of opaque types and utility APIs: collections, strings, run loops, and plug-ins.

UniformTypeIdentifiers identifies file formats and data types on Apple platforms through UTType values.

CloudKit stores structured records and binary assets in iCloud containers, syncs them across a user's devices, and shares them between users.

ManagedAppDistribution provides APIs for apps distributed and managed by an organization's MDM.

XCUIAutomation is the UI testing API for Apple platforms, used from XCTest UI test targets to drive and query app interfaces.

AlarmKit is Apple's framework for scheduling and managing alarms and countdown timers.

LinkPresentation fetches and presents metadata for URLs, generating the link previews shown in Messages and other apps.

SharedWithYou is Apple's framework for surfacing content shared with the user and presenting it in a Shared with You section, with APIs to track…