Mobile Development Skill — Quick Reference

This skill equips mobile developers with execution-ready patterns for building native and cross-platform mobile applications. Claude should apply these patterns when users ask for iOS/Android app architecture, UI components, navigation flows, API integration, offline storage, authentication, or mobile-specific features.

When to Use This Skill

Claude should invoke this skill when a user requests:

iOS app development (Swift, SwiftUI, UIKit)
Android app development (Kotlin, Jetpack Compose)
Cross-platform development (React Native, WebView)
Mobile app architecture and patterns
Navigation and routing
State management (Redux, MobX, MVVM)
Network requests and API integration
Local data storage (Core Data, Room, SQLite)
Authentication and session management
Push notifications
Camera and media access
Location services
App Store / Play Store deployment
Mobile performance optimization
Offline-first architecture

Quick Reference Table

Task	iOS	Android	Cross-Platform	When to Use
Native UI	SwiftUI + UIKit	Jetpack Compose + Views	React Native	Native: Best performance; Cross-platform: Code sharing
Navigation	NavigationStack	Navigation Component	React Navigation	Platform-specific for native feel
State Management	@State/@Observable	ViewModel + StateFlow	Redux/MobX	iOS: @Observable; Android: ViewModel; RN: Redux
Networking	URLSession + async/await	Retrofit + Coroutines	Axios/Fetch	Native: Type-safe; RN: JavaScript ecosystem
Local Storage	Core Data + SwiftData	Room Database	AsyncStorage/SQLite	Native: Full control; RN: Simpler
Push Notifications	APNs	FCM	React Native Firebase	Native: Platform-specific; RN: Unified API

Decision Tree: Platform Selection

Need to build mobile app for: [Target Audience]
    ├─ iOS only?
    │   └─ Use Swift + SwiftUI (templates/swift/)
    │
    ├─ Android only?
    │   └─ Use Kotlin + Jetpack Compose (templates/kotlin/)
    │
    ├─ Both iOS and Android?
    │   ├─ Need maximum performance?
    │   │   └─ Build separate native apps (Swift + Kotlin)
    │   │
    │   ├─ Need faster development + code sharing?
    │   │   └─ Use React Native (templates/cross-platform/)
    │   │
    │   └─ Wrapping existing web app?
    │       └─ Use WebView wrapper (templates/cross-platform/template-webview.md)

Navigation

Resources

resources/ios-best-practices.md — iOS architecture, concurrency, testing, and performance
resources/android-best-practices.md — Android/Kotlin architecture, coroutines, Compose, testing, performance
README.md — Folder overview and usage notes
data/sources.json — Curated external references by platform

Templates

Related Skills

../software-frontend/SKILL.md — Web-facing UI patterns and Next.js integration
../software-backend/SKILL.md — API design, auth, and backend contracts for mobile clients
../software-testing-automation/SKILL.md — Mobile CI, test strategy, and reliability gates
../quality-resilience-patterns/SKILL.md — Resilience patterns for networked mobile apps

Operational Playbooks

resources/operational-playbook.md — Mobile architecture patterns, platform-specific guides, security notes, and decision tables

software-mobile