Why Expo EAS Build?

EAS Build is Expo's cloud build service. It compiles your React Native app into native iOS and Android binaries, handles code signing, and can submit directly to stores.

The Setup Problem

First-time EAS Build configuration takes 8-16 hours:

• Configure eas.json with build profiles (development, preview, production)
• Set up iOS code signing (certificates, provisioning profiles)
• Configure Android keystore
• Write submission scripts for App Store Connect API
• Generate screenshots for both platforms
• Handle app metadata (description, keywords, categories)

How AI App Factory Handles It

8 automation scripts handle the entire pipeline:

• eas.json pre-configured with all build profiles
• Code signing automated via EAS credentials manager
• Android keystore generated and stored securely
• Submission scripts call App Store Connect and Google Play APIs
• Screenshot generation scripted for all required sizes
• Metadata templates for both stores

The Scripts

Script	What It Does
build:ios	Production iOS build via EAS
build:android	Production Android build via EAS
submit:ios	Submit to App Store Connect
submit:android	Submit to Google Play
screenshots	Generate all required screenshot sizes
certs:ios	Manage iOS certificates and profiles
certs:android	Generate and backup Android keystore
deploy:all	Full pipeline: build → submit → both platforms

Related

• Code Signing Pain — the problem this solves
• How to Submit to App Store — step-by-step guide