React Native App Development Company
PerfectionGeeks is a React Native app development company that builds iOS and Android apps, and often a web app, from one TypeScript codebase. We use React Native's New Architecture, Expo where it fits and native modules in Swift and Kotlin when an app needs device features or extra performance. Most apps share the large majority of their code across platforms, which usually cuts cost and time compared with two separate native apps. A React Native MVP typically costs $15,000–$40,000 and launches in 8–12 weeks; a full-featured app costs $40,000–$100,000.
- React Native suits most business, commerce, social, booking and content apps that need iOS and Android quickly.
- Since version 0.76, the New Architecture is on by default, improving performance and native interoperability.
- Over-the-air updates can only change JavaScript and assets; native changes and new features still go through App Store and Google Play review.
- Choose native or add native modules for heavy graphics, AR, advanced Bluetooth or very complex animations.
- Typical cost: $15K–$40K for an MVP, $40K–$100K for a full app, $100K–$250K+ for enterprise apps.
React Native Development Services
New React Native apps
IOS and Android apps, with an optional web version via React Native Web, built in TypeScript.
Migration to React Native
Move from two native codebases, Cordova, Ionic or Xamarin to one React Native app, screen by screen.
Upgrades to the New Architecture
Upgrade older React Native versions and libraries to supported releases, Fabric and TurboModules.
Performance optimisation
Fix slow start-up, janky lists, memory leaks and large bundles using profiling and Hermes.
Native modules and integrations
Custom Swift and Kotlin modules for Bluetooth, payments, maps, health data or SDKs that lack React Native support.
UI/UX design
Platform-aware design systems in Figma that feel right on both iOS and Android.
Testing and release
Automated tests, CI/CD with EAS or Fastlane, store submission and over-the-air updates.
Support and maintenance
OS and library updates, crash monitoring and new features.
Apps We Build With React Native
| App type | Examples of features |
|---|---|
| E-commerce and retail | Catalogue, cart, payments, loyalty, push campaigns |
| On-demand and delivery | Customer, driver and admin apps, live tracking, payments |
| Fintech | Wallets, KYC, biometrics, secure storage, charts |
| Healthcare and fitness | Booking, telehealth video, wearables, HealthKit and Health Connect data |
| Social and community | Feeds, chat, media upload, notifications, moderation |
| SaaS companion apps | Dashboards, approvals, offline forms, single sign-on |
| Education | Courses, video, quizzes, offline lessons |
When React Native Is the Right Choice
Many successful products mix both: a React Native app with a few native screens or modules where they matter.
| Choose React Native when | Consider native when |
|---|---|
| You need iOS and Android, often with web, on one budget | The app relies on heavy 3D graphics, games or AR |
| Your team already uses React or JavaScript | You need deep, low-level access to new OS features on day one |
| Most screens are forms, lists, feeds, maps and media | Animations and real-time processing are the core of the product |
| You want fast releases and over-the-air fixes | You only target one platform |
React Native vs Flutter vs Native
| Comparison | React Native | Flutter | Native (Swift and Kotlin) |
|---|---|---|---|
| Language | JavaScript or TypeScript | Dart | Swift, Kotlin |
| UI | Native platform components | Its own rendering engine | Native components |
| Code sharing | iOS, Android and web | iOS, Android, web and desktop | None between platforms |
| Best for | Teams with React skills, apps that should feel native on each platform | Highly custom, pixel-identical UI across platforms | Maximum performance and immediate access to new OS features |
| Cost | Lower than two native apps | Lower than two native apps | Highest: two codebases |
How We Build React Native Apps
New Architecture by default
Fabric rendering and TurboModules for faster, more predictable performance.
Expo or bare workflow
Expo and EAS for faster builds and updates in most apps; bare React Native when the project needs unusual native configuration.
TypeScript and clean structure
Typed code, feature-based folders and shared design components.
Offline-first data
Local storage and sync so key screens work without a connection.
Over-the-air updates done properly
EAS Update or similar for JavaScript fixes, used within App Store and Google Play rules.
Security
Secure storage, certificate pinning where needed, obfuscation and no secrets in the app bundle.
React Native Technology Stack
| Area | Technologies |
|---|---|
| Core | React Native (New Architecture), TypeScript, Hermes engine, Expo and EAS |
| Navigation and UI | React Navigation, Expo Router, Reanimated, Gesture Handler, design systems |
| State and data | React Query (TanStack Query), Zustand or Redux Toolkit, GraphQL or REST |
| Storage | MMKV, SQLite, WatermelonDB, Realm |
| Backend | Node.js (NestJS), Firebase, Supabase, AWS Amplify |
| Testing | Jest, React Native Testing Library, Detox, Maestro |
| Monitoring | Sentry, Firebase Crashlytics, analytics such as Mixpanel or PostHog |
| CI/CD | EAS Build and Submit, Fastlane, GitHub Actions, Bitrise |
Our React Native Development Process
Design and Prototype
Development in Sprints
Testing
Launch
Support and Growth
How Much Does React Native App Development Cost?
These are planning ranges; your estimate depends on final scope. Running costs include hosting, third-party services, app store accounts and maintenance of roughly 15–20% of build cost per year.
| Scope | What is included | Typical cost | Timeline |
|---|---|---|---|
| MVP | Core features, sign-up, basic admin, iOS and Android | $15,000–$40,000 | 8–12 weeks |
| Full-featured app | Payments, chat or real-time features, integrations, analytics, web dashboard | $40,000–$100,000 | 3–6 months |
| Enterprise app | Complex integrations, offline sync, security reviews, multiple roles and regions | $100,000–$250,000+ | 6–10 months |
| Migration to React Native | Rebuild of an existing native or hybrid app | $25,000–$120,000 | 2–6 months |
Ways to Work With Us
| Model | Best for |
|---|---|
| Fixed-price project | Clear scope such as an MVP |
| Dedicated React Native team | Ongoing product development |
| Staff augmentation | Adding React Native developers to your in-house team |
| Code audit and rescue | Fixing an app with performance, crash or upgrade problems |
Common React Native Problems We Fix
| Problem | How we fix it |
|---|---|
| Slow start-up and laggy lists | Hermes, list virtualisation, memoisation and bundle splitting |
| Outdated versions and broken libraries | Staged upgrades, New Architecture migration and library replacement |
| Crashes on some devices | Crash analytics, device testing and native module fixes |
| Large app size | Asset optimisation and removal of unused dependencies |
| Inconsistent UI across platforms | Shared design system with platform-specific adjustments |
Why Choose PerfectionGeeks for React Native?
Honest technology advice
We recommend native or Flutter when they fit better.
Native skills in-house
Swift and Kotlin engineers for custom modules.
Modern stack
New Architecture, TypeScript, Expo and automated testing.
Transparent delivery
Sprint demos, shared boards and installable builds every two weeks.
You own the code
Source code, accounts and IP belong to you.
Related Reading
Related Reading
Get a React Native Estimate
Share your idea or existing app. We will recommend the right approach, from a new build to a migration, and send a scope, timeline and cost range.














