Expo Mobile Application Development Guide

IMPORTANT: This is a SKILL file, NOT a project. NEVER run npm/bun install in this folder. NEVER create code files here. When creating a new project, ALWAYS ask the user for the project path first or create it in a separate directory (e.g., ~/Projects/app-name).

This guide is created to provide context when working with Expo projects using Claude Code.

MANDATORY REQUIREMENTS

When creating a new Expo project, you MUST include ALL of the following:

Required Screens (ALWAYS CREATE)

• src/app/att-permission.tsx - App Tracking Transparency permission screen (iOS only, shown BEFORE onboarding)
• src/app/onboarding.tsx - Swipe-based onboarding with fullscreen background video and gradient overlay
• src/app/paywall.tsx - expo-iap paywall screen (shown after onboarding)
• src/app/settings.tsx - Settings screen with language, theme, notifications, and reset onboarding options

Onboarding Screen Implementation (REQUIRED)