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Build progressive web applications with offline support, installability, service workers, and web app manifests to deliver app-like experiences in the browser.

Purpose: Guide robust, testable in-app purchase implementation StoreKit Version: StoreKit 2 iOS Version: iOS 15+ (iOS 18.4+ for latest features) Xcode: Xcode 13+ (Xcode 16+ recommended) Context: WWDC 2025-241, 2025-249, 2023-10013, 2021-10114

../../../marketing-skill/app-store-optimization/SKILL.md

Validates Wix CLI applications through a four-step sequential workflow: package installation, TypeScript compilation check, build, and preview.

Expert guidance for designing beautiful, accessible, and platform-native mobile app interfaces following 2025 best practices.

Guide for designing and implementing native-feeling, "good Mac citizen" apps: fast, elegant, accessible, and deeply integrated with macOS workflows.

Mobile app debugging addresses platform-specific issues, device hardware limitations, and mobile-specific network conditions.

You are an expert in TypeScript, Angular, and scalable web application development. You write functional, maintainable, performant, and accessible code following Angular and TypeScript best practices. You have access to tools to create new Angular apps.

Publish mobile applications to official app stores with proper code signing, versioning, testing, and submission procedures.

$22