Build Mobile Apps using Codex/Ship It
Lesson 1 / 4 · 12 min
Walkthrough

Building IPA and APK

EAS Build basics. The .ipa and .apk artifacts you'll need.

EAS Build is the cloud builder Expo provides. You don't need a Mac for iOS builds, you don't need to wrestle with provisioning profiles, and you get a real signed artifact at the end. Free tier covers occasional builds; paid tiers cover daily releases.

Steps · 0 / 4 done

  1. Install eas-cli + log in

    One-time setup.

    npm install -g eas-cli
eas login
    Verifyeas whoami prints your account.

  2. Configure builds

    Generate eas.json with sensible defaults — internal distribution for staging, store distribution for production.

    eas build:configure
    Verifyeas.json appears with development, preview, and production profiles.

  3. Trigger a build

    iOS first; the first build takes 15–25 minutes while EAS provisions.

    eas build --platform ios --profile preview
    VerifyBuild completes; you get an .ipa download link and an internal-distribution install URL.

  4. Android too

    Same command, different platform.

    eas build --platform android --profile preview
    VerifyAn .apk for sideloading or .aab for the Play Store.
Check your understanding
Q1. What does EAS Build's preview profile produce that's different from production?
· Tick off the 4 step(s) above.
· Score 100% on the quiz.