Introduction

• Both React Native and Flutter allow a single codebase to ship to iOS and Android.
• The choice affects your team's hiring pool, performance profile, and long-term maintenance.
• This comparison is practical — focused on real trade-offs, not synthetic benchmarks.

The Fundamental Architectural Difference

React Native (New Architecture — Fabric + JSI)

• UI is rendered by the native platform (iOS UIKit / Android Views) — truly native components.
• JavaScript business logic communicates with native modules via JSI (JavaScript Interface) — synchronous bridging.
• React Native 0.73+ ships with the new architecture enabled by default (no more async bridge).

Flutter

• Flutter draws every pixel itself via its Skia/Impeller rendering engine — no native components.
• Dart is compiled to native ARM code — no JavaScript runtime.
• Consistent pixel-perfect UI across platforms but doesn't look "native" by default (requires manual theming).

Language: JavaScript/TypeScript vs Dart

	React Native	Flutter
Language	TypeScript / JavaScript	Dart
Learning curve for JS devs	Low	Medium
Type system	TypeScript (opt-in)	Strongly typed (built-in)
Hiring pool	Very large (JS ecosystem)	Growing but smaller

• If your team already writes React/TypeScript, React Native is the obvious choice — code sharing with a Next.js web app is practical.
• Dart is approachable but adds a new language to hire/train for.

Performance

• Flutter: highly consistent 60/120fps; Impeller engine replaced Skia in iOS/Android.
• React Native: excellent with the new architecture; heavy JS processing can still cause frame drops.
• For most business apps (CRUD, forms, lists): both are more than performant enough.
• For GPU-intensive animations or games: Flutter has an edge.

Ecosystem & Libraries

• React Native: backed by Meta, used by Microsoft (Xbox, Outlook), Shopify. npm ecosystem available.
• Flutter: backed by Google, strong Material/Cupertino widget libraries, pub.dev package ecosystem.
• Third-party native module coverage: React Native has more battle-tested integrations (Stripe, Firebase, payments).

Code Sharing with Web

• React Native: share business logic (hooks, API clients, stores) with a React web app; UI code doesn't transfer directly.
• React Native Web: render React Native components in a browser — works for simple UIs.
• Flutter Web: mature but heavier initial bundle; design language is more app-like than web-like.

Expo: The React Native Developer Experience Win

• Expo is the recommended way to start a React Native project.
• Managed workflow: no Xcode/Android Studio required until you need custom native modules.
• EAS (Expo Application Services): cloud builds, OTA updates, submission to App Store/Play Store.
• Expo SDK ships well-tested implementations of camera, notifications, file system, sensors.

Community & Job Market

• React Native developer roles significantly outnumber Flutter roles in most markets (2026 Glassdoor/LinkedIn data).
• Flutter is dominant in Southeast Asian startup ecosystems and greenfield Google-stack shops.
• Both have active GitHub communities and regular major releases.

When to Choose React Native

• Your team knows React/TypeScript already.
• You want code + logic reuse with a Next.js/React web app.
• You need access to the broadest native module ecosystem.
• Your app integrates heavily with platform features (payments, biometrics, deep linking).

When to Choose Flutter

• You need pixel-perfect custom UI that deviates from iOS/Android conventions.
• You're targeting multiple platforms including Desktop (macOS, Windows, Linux) and Embedded.
• Your team has Dart/Flutter experience or you want a single strongly-typed language.
• You're building a design-heavy consumer app with complex animations.

Conclusion

• For a full-stack web developer expanding into mobile: React Native wins on familiarity and ecosystem.
• For a team building a design-system-first consumer product across all platforms: Flutter is compelling.
• The gap has narrowed significantly in 2024–2026 — either is a solid choice; pick based on team skills, not hype.