What problem does it solve? Building native iOS apps that follow Apple's Human Interface Guidelines requires deep knowledge of SwiftUI layout systems, navigation patterns, typography, and accessibility rules, which is easy to get wrong without structured guidance. ## Core Features & Use Cases - SwiftUI Layout & Components: Provides stack-based layouts, adaptive grids, lists, forms, buttons, sheets, and loading states with production-ready code patterns. - Navigation Patterns: Covers NavigationStack, NavigationSplitView, TabView, sheets, deep linking, and coordinator-based routing for iOS 16+ through iOS 18+. - HIG-Compliant Design: Includes semantic colors, SF Symbols, Dynamic Type typography, haptic feedback, VoiceOver accessibility, and Dark Mode support. - Use Case: When building an iPhone and iPad app, use this Skill to generate a NavigationSplitView master-detail layout with adaptive columns, semantic colors, and VoiceOver labels that pass accessibility review. ## Quick Start Ask the AI to build an iOS settings screen in SwiftUI with a form, toggles, and navigation following Apple Human Interface Guidelines.