React Native App Development

One codebase, both app stores

Ship iOS and Android from a single React Native codebase — without the app feeling like a compromise. We build fast, native-feel cross-platform apps that cut cost and time to market while keeping the polish your users expect.

iOS & Android together Native-feel UI Faster & leaner
One codebase iOS Android

Our React Native stack

React TypeScript Expo Redux Toolkit Reanimated Hermes Native modules
12+Years building apps
500+Products shipped
50+Engineers & specialists
5.0Rating on Clutch
Why React Native

Native feel, half the code

React Native lets one team build both iOS and Android from a shared JavaScript codebase — rendering to real native UI components, not a web view. Around 46% of mobile developers now use a cross-platform framework (Statista, 2023), and React Native is one of the two most popular — because you get close-to-native performance and feel with far less duplicated effort.

For most apps, that means launching on both platforms at once, a smaller team, and a single place to fix bugs and add features — a meaningful cut in cost and time to market versus building two separate native apps. It's why companies from startups to the largest tech firms ship in React Native.

The trick is knowing where the shared code ends. When a screen needs platform-specific behaviour, custom native performance or a device capability the ecosystem doesn't cover, we drop into native modules in Swift or Kotlin and bridge it cleanly. You get the productivity of one codebase without hitting a wall on the hard 10%.

We also engineer for the things that make or break a React Native app in production: smooth 60fps animations with Reanimated, a lean bundle with Hermes, sensible state management, and over-the-air updates so you can ship fixes without waiting on app review.

Whether React Native is your whole mobile strategy or one option we're weighing against Flutter and native, we give you a straight recommendation and then build it properly — design, engineering, and both store launches under one roof.

JS
React + TypeScriptYour shared app logic & UI
HE
Hermes engineFast JS execution, small bundle
JSI
Bridge / JSITalks to the native side
NM
Native modulesSwift & Kotlin where needed
▣
Real native UIOn iOS & Android at once
The Advantage

Why teams choose React Native

The practical wins that make one shared codebase the smart default for most mobile products — and why everyone from early startups to the world's biggest apps ships this way.

🔌Shared codebaseOne team builds and maintains both apps at once
⚡Faster launchShip iOS and Android on the same timeline
📱Native feelReal native components, smooth 60fps UI
🌐Huge ecosystemMature libraries for almost everything
↻OTA updatesPush fixes without app-store review delays
💰Lower costLess code, fewer people, one clear roadmap
The Payoff

What React Native delivers for your business

The right cross-platform build gets you to market faster and cheaper — without the “written once, broken twice” feeling of a bad hybrid app. Done well, users never know it wasn't fully native.

  • Launch on iOS and Android together, from day one
  • One codebase to build, test, fix and evolve over time
  • Lower build and maintenance cost across the app's whole life
  • A near-native experience your users can't tell apart
  • Ship updates instantly with over-the-air delivery
  • Reuse skills and logic alongside your React web team
⚡FasterTwo platforms, one timeline
💰LeanerLower cost to build & maintain
📱Native feelReal components, smooth UX
↻AgileInstant over-the-air updates
Built In

Engineered for production, not just demos

A demo is easy; a React Native app that stays fast and reliable at scale is not. These are the capabilities we build in from the start to keep it that way.

🔧
Native modules

Custom Swift and Kotlin bridges for anything the ecosystem doesn't cover — hardware, SDKs and platform-specific behaviour, exposed cleanly to your shared code.

↻
OTA updates

EAS Update or CodePush so you can push JavaScript fixes and features straight to users without a full store release each time.

🎲
Fluid animations

Reanimated and Gesture Handler for buttery 60fps interactions that feel every bit as smooth and responsive as native.

📶
Offline & sync

Local storage, caching and background sync so the app stays useful with a poor connection or none at all.

🔔
Push & deep links

Push notifications, deep linking and analytics wired in across both platforms from a single implementation.

✅
Testing & CI/CD

Automated tests and EAS/Fastlane pipelines so builds, releases and both store submissions stay reliable and repeatable.

Industries

React Native apps for every sector

Cross-platform is a natural fit when you need to reach everyone quickly and keep one team in sync. We tailor each build to your industry's data, compliance and users, and adapt proven patterns to how your sector really works.

Case Study · React Native

Two apps, one team, one timeline

The problem

A startup needed to launch on iOS and Android at the same time but had the budget and team for only one native app. Building two separately would have doubled cost and split their small team in half.

What we built

A single React Native codebase with a shared design system, native modules for the few platform-specific pieces, and an EAS pipeline for builds and over-the-air updates. One team shipped both apps together.

The outcome

They launched on both stores on the same day with a consistent, native-feel experience, and now fix bugs and add features once instead of twice — freeing budget for growth rather than duplicated engineering.

Release pipeline Shipped App StoreiOS build approved Google PlayAndroid build live OTA updatev1.1 pushed instantly One codebase ✓
How We Work

From idea to both stores

A clear, agile path that builds once and ships to iOS and Android together — with builds you can try at every step.

01

Discover

Define goals and scope, and confirm React Native is the right call for your app before we build.

02

Design

One design system that adapts to each platform's conventions, refined on prototypes first.

03

Build

Develop the shared codebase in sprints, adding native modules where the app genuinely needs them.

04

Test

QA on real iOS and Android devices for performance, feel and stability, catching issues before users do.

05

Launch

Ship to both stores, then iterate fast with over-the-air updates as real usage comes in.

Why EchoInnovate IT

React Native done right

React Native is easy to start and hard to master — the difference shows in performance, native feel and how the app holds up as it grows. We've built and shipped 500+ products over 12+ years, with React and native engineers who know exactly when to share code and when to go native. And with design, backend and mobile under one roof, there's one accountable team from idea to both store listings, so quality doesn't leak between vendors.

  • React & TypeScript with a clean architecture
  • Native modules in Swift & Kotlin when needed
  • Smooth 60fps UI, tuned bundle and startup
  • Both app stores handled, plus OTA updates
  • Clean, documented code you own
  • Support and updates long after launch
How It Compares

React Native vs Flutter vs native

A quick, honest comparison to help you choose — and we'll give you a straight recommendation for your project.

 React NativeFlutterNative
LanguageJavaScript / TSDartKotlin & Swift
UI approachReal native componentsCustom-renderedFully native
EcosystemHuge (React / npm)Growing, strongPlatform SDKs
Shared web skillsYes, with React web teamsNo (Dart)No
Best whenYou want a native feel & the React ecosystemYou want a distinctive UI across many platformsYou need max performance or deep platform depth
FAQ

React Native development, answered

Is React Native as good as native?

For the vast majority of apps, yes — React Native renders real native UI components, so users can't tell the difference. For the rare screen that needs heavy graphics or a very platform-specific capability, we drop into native code and bridge it, so you never trade quality for convenience. In practice, the ceiling is far higher than most teams ever need.

Will one codebase really run on both iOS and Android?

Yes. The large majority of your code is shared, with small platform-specific tweaks where each store or design language calls for it. You build, test and maintain one codebase and ship to both the App Store and Google Play, rather than funding two separate native teams that can drift apart over time.

What is React Native best suited for?

Most consumer and business apps — marketplaces, social, fintech, on-demand, content and internal tools — are a great fit. It shines when you want both platforms fast on a sensible budget. For apps built around intense 3D, AR or heavy device-level processing, we'll tell you honestly if native is the better call.

Can you add native features and device APIs?

Absolutely. We write custom native modules in Swift and Kotlin for camera, Bluetooth, payments, maps, biometrics and any SDK the ecosystem doesn't already cover — then expose them cleanly to the shared JavaScript layer so the rest of the app stays simple to work on.

What are over-the-air (OTA) updates?

OTA lets us push JavaScript changes — bug fixes, copy, many features — straight to users' installed apps without waiting for App Store or Play review. We set up EAS Update or CodePush so you can respond to issues in hours, not days, within the platforms' rules.

Can you fix or upgrade our existing React Native app?

Yes. We take over existing React Native codebases, upgrade old versions and dependencies, fix performance and crash issues, add native modules, and modernize the architecture — without a full rewrite unless the current code truly warrants one. Many of our engagements begin as a rescue.

How much does a React Native app cost?

Because you're building for two platforms at once, React Native is usually more cost-effective than two native apps. The exact figure depends on scope, screens and integrations, so we scope your project and share a clear estimate and roadmap after a short discovery call.

Do you provide support after launch?

Yes. React Native and its libraries move quickly, so we offer ongoing support to keep the app current, adopt useful new capabilities, fix issues, monitor stability and add features as your product grows — across both platforms from one place. You are never left maintaining it alone.
Let's Build

Ready to ship on both stores?

A new cross-platform app, a rescue of a struggling one, or advice on React Native vs the alternatives — tell us your goal and we'll map the fastest path to launch.

GET STARTED

Get a Free Project Quote

Tell us about your project and our team replies within 24 hours with a clear scope and estimate — no obligation.

  • ✓ 500+ products delivered
  • ✓ 12+ years experience
  • ✓ NDA on request

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