What changes with the New Architecture (Fabric, TurboModules, JSI) for a production app?

Three concrete changes. Fabric replaces the legacy renderer with a synchronous, concurrent UI layer that eliminates flicker during transitions and brings React Native concurrent mode features. TurboModules replace the asynchronous bridge for native modules with a JSI-backed direct interface, removing per-call serialization overhead. JSI lets JavaScript call C++ and native code synchronously, which opens the door for libraries like Reanimated 3 and gesture handlers to run animations on the UI thread without bridge round-trips. For existing apps, migration is a multi-week project. For new apps, starting on the New Architecture is the default in 2026.

Expo or bare React Native, which should we choose for a new project?

Expo for nearly every new app now. Modern Expo (SDK 50 and later) supports the EAS build service, custom native modules through development builds, and the full New Architecture. The escape hatches that used to force teams off Expo (custom native modules, specific SDK versions) are mostly handled through development builds and config plugins. Bare React Native remains the right choice for apps with very deep custom native integration that conflicts with Expo managed model, but we reach for Expo by default and only step out where the project genuinely needs the bare workflow.

Can a React Native app share code with our existing React web app?

Yes, with the right project structure. Pure business logic, types, validators, API clients, and state management code share cleanly across React and React Native through a yarn or pnpm workspace. UI code does not share directly because React Native uses native components (View, Text, ScrollView) instead of HTML, but tools like Tamagui, Solito, and React Native Web make a higher percentage of UI shareable when the team designs for it. We size the realistic sharing percentage during scoping (typically 30 to 60 percent depending on UI complexity) and design the codebase around that target.

How close is React Native performance to native iOS and Android in real apps?

For most production apps the gap is invisible to users on modern phones. List rendering with FlashList, animations on Reanimated 3 running on the UI thread, and image loading with native libraries hit 60fps comfortably. Where React Native is still slower than native is heavy-graphics workloads (real-time AR, custom canvases, complex 3D), very large lists without proper virtualization, and cold-start time on lower-end Android devices. We benchmark on the actual target devices before committing and we drop into native code for the specific hot paths that need it.

How do you debug and monitor a React Native app in production?

Crash reporting through Sentry or Bugsnag, with React Native source maps uploaded automatically per release so stack traces resolve to your TypeScript code. Performance monitoring captures startup time, navigation timing, and slow JavaScript frames. Application logs flow through React Native logging APIs to your logging backend. For investigations after the fact, OTA updates through EAS Update let you ship fixes to JavaScript and assets without going through App Store review, which significantly shortens the loop between a production bug and a deployed fix.

Cross-Platformby Software Pro

React Native

JavaScript-Powered Native Mobile with Shared Code and Native Feel

Software Pro, headquartered in NYC, is a React Native development team shipping production cross-platform apps for SaaS, startup, and enterprise clients. React Native renders to native iOS and Android UI components, not a WebView. Combined with TypeScript and Expo, it's the fastest path to a production-quality mobile app for teams already working in React. We build React Native apps that feel native, perform well, and share code intelligently with your web stack.

iOSAndroidExpo GoWeb (optional)TV

Native

Renders to real iOS and Android components

TypeScript

Type-safe across the full stack

70%+

Code shared between iOS and Android

At a glance

Code Sharing: 70 to 90 percent shared between iOS and Android

Team: One React team ships web and mobile

Updates: OTA patches in minutes with no review wait

Architecture: New Architecture: JSI + Fabric + TurboModules

What We Build

React Native Capabilities

What we ship in React Native: production iOS and Android apps that share code with your existing web stack.

Native Component Rendering

React Native compiles to native iOS UIKit and Android View components, not HTML in a WebView. Touch, scroll, and animation behave exactly as users expect on each platform.

Expo for Rapid Development

Expo's managed workflow, OTA updates, and unified build service (EAS Build) dramatically reduce the configuration overhead of bare React Native, so teams ship faster with less DevOps.

Shared TypeScript Codebase

Business logic, API calls, validation, and state management are shared between iOS and Android. Platform-specific UI diverges only where needed.

Over-the-Air Updates (OTA)

Expo Updates and CodePush deliver JavaScript bundle updates directly to users without App Store review, so you can ship bug fixes and small features in minutes.

Native Module Bridge

Access any native SDK via community modules or custom native code bridged to JavaScript, including Bluetooth, NFC, biometrics, and device-specific hardware.

New Architecture (JSI + Fabric)

React Native's New Architecture replaces the async bridge with JSI, enabling synchronous native calls, the Fabric concurrent renderer, and TurboModules for 60fps complex UIs.

Questions? We've Got Answers

Your React Native Architecture Questions, Answered.

Direct answers on what the new React Native architecture changes for production teams, and whether existing apps should migrate.

Featured Answer

How does the new React Native architecture change things for production teams?

The new architecture introduces three significant changes. Fabric replaces the legacy UI manager with synchronous rendering, reducing flicker and timing issues that plagued the bridge architecture. TurboModules replace the bridge-based native module system with direct JavaScript interface, reducing serialization overhead. JSI enables tighter integration between JavaScript and native code, supporting features like synchronous calls. For existing apps, migration requires effort but produces measurable performance improvements. New projects should start on the new architecture by default rather than the legacy approach.

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Industry Applications

What We Ship With React Native

Real React Native apps our engineers have shipped across SaaS, fintech, healthcare, and consumer products.

SaaS

Mobile Companion to Web SaaS

Ship a mobile app that shares API clients, validation logic, and data types with your web frontend, with one TypeScript team owning the entire product surface.

Shared TypeScript types with web

Same API layer (React Query)

Push notifications + deep links

Marketplace

Two-Sided Marketplace Mobile Apps

Buyer and seller apps with product listings, in-app messaging, payment flows, and real-time status updates, built once in React Native and deployed to both stores.

Stripe React Native SDK

In-app messaging with WebSocket

Location-based search

Consumer

Social and Content Consumer Apps

Infinite-scroll feeds, camera-first UX, story-style content, and push-driven re-engagement are all handled well by React Native, which supports high-fps feed rendering and native camera access.

Flatlist virtualized infinite scroll

react-native-vision-camera

Reanimated 3 gesture animations

Enterprise

Enterprise Internal Mobile Tools

Replace outdated enterprise mobile apps covering field inspection forms, approval workflows, and inventory scanning with a modern React Native app deployed via MDM.

Offline SQLite with sync

Barcode / QR scanning

MDM sideloading support

Deliverables

What You Get From Us

Every React Native engagement ends with App Store and Play Store submission, CI/CD, and OTA updates wired up.

App Store and Play Store Submission via EAS

Expo Application Services (EAS) builds, signs, and submits to both stores from the same pipeline, with CI/CD from day one.

Design System with React Native Paper / NativeWind

Tailwind-compatible NativeWind or React Native Paper component library with design tokens, dark mode, and accessibility built in.

OTA Update Pipeline

Expo Updates configured for staged rollouts so you can hot-patch JavaScript bugs and content updates without waiting for app store review.

End-to-End Test Suite (Detox)

Detox gray-box end-to-end tests running on iOS Simulator and Android Emulator in CI, catching regressions before every release.

Technical Profile

React Native Strengths

Code Sharing (iOS + Android)

70 to 90 percent

Native Feel

High (native components)

Web Stack Alignment

Same team as React web

Complex Animations

Good (Reanimated 3)

OTA Update Speed

Minutes vs days

Tech Stack

Tools & Libraries We Use

The Expo, native modules, and JavaScript ecosystem we pair with React Native in shipped mobile apps.

Expo / EAS

Build & Deploy

React Navigation

Navigation

Zustand / Jotai

State

TanStack Query

Data Fetching

NativeWind / Tamagui

Styling

Reanimated 3

Animations

Firebase

Backend

Stripe React Native

Payments

Detox

E2E Testing

Sentry

Error Monitoring

Our React Native Track Record

Why Teams Choose Software Pro for React Native

Software Pro is a full-service mobile and game development studio headquartered in NYC, with 200+ engineers, dedicated QA, and App Store launch experience across every major platform.

React Native New Architecture (JSI + Fabric) adoption

Expo-managed workflow for fast iteration cycles

Shared TypeScript monorepos with web and mobile in one repo

OTA update pipeline for production hot-patching

Reanimated 3 complex gesture-driven UI interactions

8000+

Projects Delivered

Across multiple service lines

3000+

Clients Nationwide

Across the United States

200+

Engineers on Staff

Senior, vetted, full-time

5.0

Clutch Rating

From verified client reviews

React Native Development FAQs

Ready to Build Your React Native App?

Book a free 30-minute call with our mobile team. We'll scope your project, share platform-specific recommendations, and give you a realistic timeline and budget.

No commitment · 24h response · NDA available