Build high-performance iOS and Android apps from one JavaScript codebase with React Native 0.85 - featuring the New Architecture for near-native speed.
React Native is Meta's open-source framework that lets JavaScript developers build truly native iOS and Android applications from a single codebase. The latest stable release, v0.85 (June 2026), ships the New Architecture enabled by default — combining JSI, Fabric, and TurboModules to deliver near-native performance with up to 95% code sharing between platforms. It is how ELIVTECH gives clients one app, on every device, for far less than two.
Write once, deploy to iOS and Android simultaneously. Up to 95% of code is shared, cutting both development time and long-term maintenance burden roughly in half.
Most developers already know JavaScript. Teams can move existing web engineers onto mobile projects without onboarding an entirely new language stack.
JSI, the Fabric renderer, and TurboModules replace the old asynchronous bridge, delivering up to 40% faster startup and 20–30% lower memory use versus the legacy architecture.
Code changes appear on the simulator and device in milliseconds without losing component state, making iteration cycles dramatically shorter than full native builds.
When JavaScript alone is not enough, developers call Swift, Kotlin, Objective-C, or Java modules directly — reaching Bluetooth, ARKit, biometrics, and any other device API.
Production-tested inside Facebook, Instagram, and Shopify, with a 3,000+ contributor community shipping libraries, tooling, and framework updates every six to eight weeks.
The New Architecture is what makes today's React Native feel indistinguishable from a hand-built native app. Here is how a single JavaScript codebase drives real native UI on both platforms:
React Native New Architecture — one codebase, native on both platforms
The New Architecture replaces the old serialised JSON bridge with the JavaScript Interface (JSI) — a lightweight C++ layer that lets JavaScript hold direct references to native objects. That means synchronous calls, no serialisation round-trips, shared C++ types across iOS and Android, and the foundation for React 19 concurrent rendering on mobile.
Fabric is the new UI layer, written in C++ and shared across platforms. It supports React's concurrent model — Suspense, transitions, and priority updates all work natively on mobile — and drives consistent frame rates targeting 60fps and 120fps ProMotion displays, greatly reducing jank during long list scrolls and complex animations.
TurboModules lazy-load native modules on first use rather than registering everything at startup — a measurable share of the startup speed-up on apps with dozens of modules. Combined with JSI, native calls become synchronous and type-safe via generated bindings, removing an entire class of runtime type errors.
Hermes is Meta's mobile-optimised JavaScript engine, enabled by default. It compiles JavaScript to bytecode at build time, cutting parse time on device. Versus JavaScriptCore it ships smaller bundles, uses less memory, and reaches interactivity faster — critical for app-store ratings and retention on mid-range Android phones.
React Native and Flutter lead the cross-platform market, with React Native's JavaScript foundation giving it a uniquely large talent pool and direct code reuse with React web apps.
Cross-platform framework developer adoption (Stack Overflow 2024, %)
| Capability | React Native | Flutter | Xamarin / MAUI | Ionic / Capacitor |
|---|---|---|---|---|
| True native UI components | ✓ | ✗ custom canvas | ✓ | ✗ WebView |
| JavaScript / TypeScript | ✓ | ✗ Dart | ✗ C# | ✓ |
| Code sharing with React web | ✓ 60–70% | ✗ | ✗ | ✓ limited |
| Fast Refresh | ✓ | ✓ | ✓ | ✓ |
| Modern architecture (JSI / Fabric) | ✓ | Skia engine | — | — |
| Over-the-air updates | ✓ EAS / CodePush | limited | ✗ | partial |
Product catalogues, barcode scanning, AR try-on, and push-driven promotions — all sharing business logic with the companion web store.
FHIR-compliant patient portals, wearable integrations (HealthKit / Health Connect), and real-time telemetry dashboards for clinical teams.
Biometric authentication, secure card tokenisation, real-time transaction feeds, and deep-linked onboarding on both platforms from one codebase.
Driver and technician apps with offline-first sync, GPS tracking, camera-based proof-of-delivery, and Bluetooth device pairing.
Interactive lesson players, adaptive quizzes, offline video download, and accessibility features meeting WCAG 2.2 AA standards.
Workforce scheduling, asset management, and approval-workflow apps that reuse existing React web components and single sign-on.
Behind the architecture, choosing React Native with ELIVTECH comes down to four plain promises:
A single shared codebase typically cuts mobile delivery time by 40–50% versus separate native apps — real budget back in your pocket, on build and on every future update.
Your app renders true platform controls, so it looks and feels right on both iOS and Android — no compromise on the experience your customers expect.
Over-the-air updates let us push urgent fixes and improvements straight to installed apps — no waiting days for a store review when it matters most.
Facebook, Instagram, and Shopify run React Native in production. The same framework that serves their millions of users is the one carrying your app.
Our engineers ship production-grade React Native solutions. Let's scope yours.
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