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Purpose: Comprehensive reference for file-based iCloud sync using ubiquitous containers Availability: iOS 5.0+ (basic), iOS 8.0+ (iCloud Drive), iOS 11.0+ (modern APIs) Context: File-based cloud storage, not database (use CloudKit for structured data)

Comprehensive API reference for modern Core Location (iOS 17+).

Purpose: Comprehensive reference for file encryption and data protection APIs Availability: iOS 4.0+ (all protection levels), latest enhancements in iOS 26 Context: Built on iOS Data Protection architecture using hardware encryption

Command-line interface for Instruments profiling. Enables headless performance analysis without GUI.

Complete API reference for iOS energy optimization, with code examples from WWDC sessions and Apple documentation.

Complete reference for TextKit 2 covering architecture, migration from TextKit 1, Writing Tools integration, and SwiftUI TextEditor with AttributedString through iOS 26.

Complete reference for typography on Apple platforms including San Francisco font system, text styles, Dynamic Type, tracking, leading, and internationalization through iOS 26.

Comprehensive guide to App Intents framework for exposing app functionality to Siri, Apple Intelligence, Shortcuts, Spotlight, and other system experiences. Replaces older SiriKit custom intents with modern Swift-first API.

StoreKit 2 is Apple's modern in-app purchase framework with async/await APIs, automatic receipt validation, and SwiftUI integration. This reference covers every API, iOS 18.4 enhancements, and comprehensive WWDC 2025 code examples.

Advanced query patterns and schema composition techniques for SQLiteData by Point-Free. Built on GRDB and StructuredQueries.