What is React Native and how does it differ from native development?

React Native is Meta's open-source framework that lets developers write one JavaScript/TypeScript codebase that compiles to native iOS and Android components. Unlike web-based hybrid apps (Cordova, Ionic), React Native renders actual native UI elements—not a web view. The result looks and feels native to users while sharing 85–95% of code across platforms. The key trade-off versus fully native Swift or Kotlin: a thin JavaScript bridge introduces slight latency for complex interactions, and deeply platform-specific APIs occasionally require native module wrappers.

Expo vs bare React Native workflow — which should my agency use?

Expo managed workflow is the fastest way to start: zero native configuration, built-in libraries for camera, location, and push notifications, and OTA updates via EAS Update out of the box. Choose it for MVPs, content apps, and teams without native iOS/Android engineers. Bare workflow gives full access to native code (Swift, Kotlin) and is required when you need custom native modules, advanced Bluetooth, or background audio/video. Most agencies start Expo-managed and eject to bare only when a specific native API demands it.

How do over-the-air (OTA) updates work in React Native?

React Native's JavaScript bundle can be updated without going through App Store or Google Play review. Tools like Expo EAS Update and Microsoft CodePush push new JS bundles to installed apps silently or with a user prompt. This means bug fixes and UI changes can reach users in minutes rather than days. Restrictions apply: OTA updates cannot add new native modules, change app permissions, or include native binary changes—those still require a full store release. Used well, OTA cuts your release cycle from weeks to hours for JS-layer changes.

What is the Hermes engine and why does it matter?

Hermes is a JavaScript engine built by Meta specifically for React Native. Unlike V8 or JavaScriptCore, Hermes pre-compiles JavaScript to bytecode at build time, reducing app startup time by 30–50% on low-end Android devices and cutting memory usage significantly. Hermes has been the default engine since React Native 0.70 and is enabled by default in Expo SDK 47+. When evaluating agencies, confirm they are shipping with Hermes enabled—apps that haven't migrated may see unnecessarily slow cold-start times.

How does React Native performance compare to fully native apps?

For most business apps—CRUD screens, lists, forms, navigation, payments—React Native performance is indistinguishable from native. The gap appears in CPU-intensive operations: complex animations at 120 fps, real-time audio processing, AR, or heavy image manipulation. React Native's New Architecture (Fabric renderer + JSI) removes the async bridge and cuts latency substantially. Apps like Facebook, Instagram, Shopify, and Coinbase run on React Native at scale. If your app is not processing live video or rendering 3D, performance is not a reason to avoid React Native.

When should I choose React Native over Flutter?

Choose React Native when your team already writes JavaScript or TypeScript, you share logic with a React web app, or you need the largest possible ecosystem of third-party libraries. React Native integrates naturally with REST/GraphQL APIs, Redux, and the broader npm ecosystem. Choose Flutter when pixel-perfect custom UI consistency across platforms is a hard requirement, or when targeting a team that is comfortable learning Dart. React Native has more production deployments and battle-tested solutions for common enterprise patterns; Flutter has a slight edge in visual polish for highly custom designs.

What does a React Native project cost in 2026?

Simple apps (authentication, basic CRUD, push notifications) run $30,000–60,000. Medium-complexity apps with real-time features, payments, and backend integrations: $60,000–150,000. Complex apps with offline sync, custom native modules, or AI features: $150,000–400,000. React Native typically costs 25–35% less than building separate native iOS and Android apps because one team covers both platforms. Agencies with Expo expertise can further compress early-stage budgets by avoiding native configuration overhead.

Can React Native apps share code with a React web app?

Yes—this is one of React Native's most underrated advantages. Business logic (API calls, data models, validation, state management with Zustand or Redux) is pure JavaScript and runs identically on web and mobile. UI components require platform-specific implementations, but libraries like React Native Web let you share many presentational components too. Teams with existing React web expertise have a meaningful advantage: onboarding onto React Native is measured in weeks, not months, because the mental model, tooling, and language are the same.

React Native · iOS & Android from one codebase · Updated May 2026

React Native app development agencies, compared

46 agencies that ship iOS and Android from a single JavaScript/TypeScript codebase — typically 25–35% cheaper than going fully native on both platforms. Average rate $77–$122/hr, typical minimum project $29K. This is a focused view of the broader Cross-Platform directory, filtered to React Native specialists only.

See the 46 agencies Cost breakdown

Why Should You Choose React Native Over Native or Flutter?

React Native's defining advantage is not just cross-platform reach—it's the connection to the JavaScript ecosystem your team likely already knows. A team that writes React for the web can be productive in React Native within weeks. Business logic, API integrations, form validation, and state management with Redux or Zustand transfer directly. You are not learning a new language (as you would with Flutter's Dart) or a new paradigm—you're extending an existing skill set to mobile. For companies running React web products, this code and skills reuse is a concrete budget advantage.

Meta's 2022 New Architecture—Fabric renderer and JavaScript Interface (JSI)—eliminated the biggest historical criticism: the async JavaScript bridge. React Native now calls native modules synchronously, improving performance for animations, gestures, and layout-heavy screens. Combined with the Hermes engine pre-compiling JavaScript at build time, modern React Native apps start 30–50% faster than apps on the older architecture. Agencies that haven't migrated projects to the New Architecture are shipping measurably slower products.

Over-the-air update capability is a business differentiator most clients underestimate. With Expo EAS Update or Microsoft CodePush, JavaScript-layer fixes and UI changes reach users in minutes without waiting for App Store or Google Play review. For SaaS products, marketplaces, and any app where a bug costs revenue per hour, OTA updates are not a luxury—they're a risk management tool. Native iOS and Android cannot do this without a full store submission.

Expo vs Bare Workflow: Which Setup Does Your Project Need?

The Expo ecosystem is now the recommended starting point for nearly all React Native projects. Choosing the wrong workflow adds cost; understanding the trade-offs upfront keeps budgets predictable.

Expo Managed Workflow

Best for: MVPs, content apps, B2B tools, most SaaS products
OTA updates: Built in via EAS Update
Native config: Zero — Expo handles iOS/Android build complexity
Library access: Expo SDK covers 95%+ of common use cases
Cost impact: Lower — no native engineer required early on

Bare / Custom Dev Client Workflow

Best for: Apps needing custom native modules or hardware APIs
OTA updates: Available via EAS Update with custom dev client
Native config: Full access to iOS (Swift/ObjC) and Android (Kotlin) code
Library access: Any npm package + any native SDK
Cost impact: Higher — requires native expertise for each platform

A well-run React Native agency starts projects in Expo managed workflow and maintains a documented list of the specific APIs that would trigger an ejection. If an agency jumps straight to bare workflow without justification, ask why—they may be adding unnecessary complexity or billing for native configuration that Expo would handle automatically.

The list

React Native agencies (46)

Sorted A–Z

Agicent

Noida, India

Noida app development company founded in 2010. 100+ developers have built 1,000+ apps for TCS, Gold Gym, Panasonic, and the creators of Groupon — specializing in iOS, Android, React Native, and AI-driven mobile solutions.

iOSAndroidReact Native SwiftJava

Hourly rate: $20–25
Min project: $25K
Team size: 50-100
IP ownership: Standard

React Native app development agencies, compared

Why Should You Choose React Native Over Native or Flutter?

Expo vs Bare Workflow: Which Setup Does Your Project Need?

Expo Managed Workflow

Bare / Custom Dev Client Workflow

React Native agencies (46)

What Does React Native Development Cost in 2026?

Typical Project Budgets by App Type

When Is React Native the Right Choice vs Flutter or Native?

React Native Wins When:

Consider Alternatives When:

React Native App Development FAQs

Related Directories

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