Expo Modules: Brownfield Integration

Add React Native in isolation. No rewrite.

Engineering teams ship new screens in React Native while the existing Swift or Kotlin code stays stable. Expo handles the native configuration automatically, so your web developers can build mobile features alongside your native team.

3M+ developers. 50K+ GitHub stars. Trusted in Production By:

Modernize incrementally. Prove it with one screen.

Expo is designed for incremental adoption. Start with a single React Native view inside your existing native app, then expand at whatever pace your roadmap allows.

New screens. Native code untouched.

Embed a React Native view inside any Swift UIViewController or Kotlin Activity. Your existing architecture, navigation, and release process stay exactly as they are.

50+ libraries. Zero native config.

Camera, notifications, file system, sensors. Expo SDK libraries install into any React Native app, and config plugins apply the Xcode and Gradle changes automatically.

OTA updates work in your existing app.

EAS Update ships JavaScript fixes to production without a new binary. It works with any React Native app, Expo-created or not, and takes under 15 minutes to add.

Ship one screen this sprint. Decide the rest later.

Expo's brownfield integration renders a React Native view inside any existing UIViewController or Android Activity. Your team ships a new feature screen while the rest of the app keeps its current release cadence. Migrate more when it makes sense, or stop where you are. Nothing about the existing codebase has to change.

Ship one screen this sprint. Decide the rest later.

Add libraries without editing Xcode or Gradle files.

Installing a native library used to mean hand-editing Podfiles, Info.plist, AndroidManifest.xml, and build.gradle, then debugging whatever broke. Config plugins automate all of it. Your team adds push notifications, camera access, or biometric auth with one install command, and Xcode upgrades stop turning into a week of build triage.

Add libraries without editing Xcode or Gradle files.

Your web team ships mobile features too.

React developers already know components, hooks, and the JavaScript ecosystem. With brownfield integration they build new screens that drop straight into the native app, while your iOS and Android engineers keep ownership of the shell and the release. New mobile features stop waiting on native engineer availability.

Your web team ships mobile features too.

Enterprise-ready out of the box

Security and compliance your procurement and legal teams can approve on day one.

SOC 2 Type II

Independently audited security controls. Full report available under NDA for enterprise customers.

GDPR & CCPA compliant

Data privacy frameworks already in place. Data processing agreement available for enterprise contracts.

SSO & role-based access

SAML-based SSO and granular permissions so the right engineers have exactly the right access.

Audit logs

Exportable logs for all admin actions and full chain of custody for every build and release.

99.9% uptime SLA

Enterprise SLA with dedicated support. Because a build failure on release day isn't acceptable.

Recommended by Meta

Expo is the React Native framework recommended by Meta and a React Foundation member.

Add React Native without betting the roadmap on it.

Talk to the team about integration architecture, hybrid build pipelines, and enterprise onboarding. Start with one screen and expand from there.