React Native App Development for iOS & Android — TypeScript, Firebase & App Store Deployment

Expert React Native App Development services for High-Performance Cross-Platform Apps

Expert React Native App Development services for High-Performance Cross-Platform Apps

We build React Native applications using React Native CLI, TypeScript, and React Navigation, delivering iOS and Android apps with Firebase backend, REST API and GraphQL integration, and native module bridging for device hardware access. Every app is built on React Native’s New Architecture with JSI and TurboModules, and deployed simultaneously to the App Store and Google Play via Fastlane and GitHub Actions CI/CD pipelines.
Below is the full range of React Native services we deliver from UX design and custom builds through API integration, performance optimization, testing, and App Store deployment.

Digital Products
Delivered
0 +
Engineering
Team
0 +
Years Building For
Global Clients
0 +

React Native App Development Services We Deliver From MVP to Production

React Native App Development Services We Deliver From
MVP to Production

Our React Native services cover every stage of the mobile app lifecycle, from UI/UX design and custom builds through API integration, performance optimization, testing, and ongoing maintenance. Every service is delivered using React Native CLI, TypeScript, React Navigation, Firebase, and REST or GraphQL API layers, engineered for 60fps performance and simultaneous App Store and Google Play deployment.

Custom React Native App Development

React Native App UI/UX Design Services

App Performance Optimization

App Maintenance & Support

React Native App Integration and Migration Service

App Testing and Quality Assurance

React Native Consultation and Strategy Planning

Custom React Native App Development

We architect and build fully custom React Native applications using TypeScript and React Navigation, implementing clean architecture with Redux or Zustand state management, Firebase or REST/GraphQL API integration, native module bridging for device hardware access, and CI/CD deployment via Fastlane and GitHub Actions. Every app is built on React Native’s New Architecture with JSI and TurboModules, engineered for smooth 60fps rendering and consistent reliability across iOS and Android from a single JavaScript codebase.

Technologies Used

React Native App UI/UX Design Services

We design React Native interfaces in Figma, building component-based UI systems using React Native’s styling primitives, platform-adaptive layouts that respect iOS Human Interface Guidelines and Android Material Design 3 conventions, and high-fidelity interactive prototypes validated with stakeholders before development begins. Every design is optimized for React Native’s StyleSheet rendering and Animated API, for pixel-accurate implementation across every target device size.

Technologies Used

App Performance Optimization

We audit and optimize existing React Native applications for maximum performance, profiling JavaScript thread and UI thread bottlenecks with Flipper and React Native DevTools, migrating legacy bridge architecture to the New Architecture (JSI/TurboModules/Fabric), optimizing FlatList rendering for large datasets, implementing Hermes engine for faster JavaScript execution, reducing bundle size via Metro bundler tree shaking, and eliminating unnecessary re-renders with React.memo and useMemo.

Technologies Used

App Maintenance & Support

We provide ongoing maintenance for live React Native applications, covering crash monitoring via Firebase Crashlytics, React Native version upgrades and breaking change resolution, native module compatibility updates for iOS and Android OS releases, security patch management, and App Store and Google Play update submissions via CI/CD automation. Sprint-based feature development keeps your app shipping new features from the same React Native codebase your team already owns.

Technologies Used

React Native App Integration and Migration Service

We integrate REST and GraphQL APIs, Firebase services, and third-party SDKs into React Native applications, building clean data layer architecture with repository pattern and dependency injection, secure JWT and OAuth 2.0 authentication, and Firebase Firestore real-time data sync. We also migrate existing native iOS, Android, or Cordova/Ionic applications to React Native,conducting full codebase audits and verifying complete feature parity throughout the transition.

Technologies Used

App Testing and Quality Assurance

We run structured React Native QA, covering Jest unit testing for business logic, Detox end-to-end UI automation testing across iOS and Android device matrix, Firebase Test Lab for real device testing at scale, performance profiling with Flipper, accessibility audit for screen reader and dynamic text compliance, and App Store and Google Play submission compliance validation. Nothing proceeds to deployment until all priority issues are resolved and client sign-off is confirmed.

Technologies Used

React Native Consultation and Strategy Planning

We provide technical consulting for businesses evaluating React Native, covering New Architecture migration planning, state management selection (Redux vs Zustand vs React Query), native module strategy for device hardware access, CI/CD pipeline architecture for App Store and Google Play, and performance audit of existing React Native codebases. We deliver a clear technical roadmap with defined architecture recommendations before any development begins.

Technologies Used

Need a Dedicated React Native Developer for
Your Project?

Need a Dedicated React Native Developer for Your Project?

Skip the back-and-forth, book a free 30-minute technical consultation with our React Native engineers and get a clear project roadmap with architecture recommendations delivered within 48 hours.

Why React Native Delivers Real Business Advantages for Mobile Development

Why React Native Delivers Real Business Advantages
for Mobile Development

React Native’s JavaScript foundation and single codebase architecture give businesses a direct path to iOS and Android using existing React and web expertise to ship cross-platform mobile apps without maintaining separate Swift and Kotlin codebases for each platform.

Single Codebase, Dual Platform Delivery

A single React Native TypeScript codebase compiles and deploys to both iOS and Android simultaneously, sharing business logic, API integration, state management, and UI components across platforms while platform-adaptive styling respects iOS Human Interface Guidelines and Android Material Design 3 conventions automatically. One sprint cycle, two store submissions.

JavaScript & React Expertise Transfers Directly

React Native uses JSX, React hooks, and the same component architecture your web developers already know, meaning existing JavaScript and React teams can build and maintain production mobile apps without learning Swift, Kotlin, or Dart. The learning curve is minimal, the productivity is immediate.

Fast Iteration via Hot Reload

React Native's Fast Refresh reloads UI changes instantly without losing application state, allowing developers to iterate on layouts, animations, and component logic in real time without full rebuild cycles. Combined with Expo Go for rapid device testing, iteration speed is significantly faster than native iOS or Android development workflows.

Production-Grade Performance via New Architecture

React Native's New Architecture JSI, TurboModules, and Fabric renderer removes the legacy JavaScript bridge bottleneck that caused performance issues in older React Native versions. With the Hermes engine for optimized JavaScript execution and direct native API access via JSI, modern React Native apps deliver 60fps rendering and response times comparable to native iOS and Android applications.

Native Device Feature Access via Native Modules

React Native's native module system provides full access to device hardware, camera, GPS, biometrics, Bluetooth, push notifications via APNs and Firebase Cloud Messaging, and accelerometer, through a well-maintained ecosystem of community and first-party native modules. For unsupported features, custom native modules can be written in Swift or Kotlin and bridged directly into the React Native app.

Large Ecosystem & Long-Term Maintainability

Backed by Meta and used in production by Microsoft, Shopify, and Facebook, React Native has a large, actively maintained cross-platform ecosystem — with thousands of libraries, strong community support, and a documented architectural roadmap through the New Architecture transition. Your codebase stays maintainable as the framework evolves, your team stays productive without context-switching between Swift and Kotlin, and your app stays compatible as Apple and Google release new OS versions

Our React Native Development Process 6 Phases From
Discovery to App Store Launch

Our React Native Development Process 6 Phases From Discovery to App Store Launch

Every React Native project follows a structured six-phase process built around TypeScript architecture, two-week agile sprints, and CI/CD automated deployment to App Store and Google Play, with defined deliverables and full client visibility at every stage.

Discovery & Technical Scoping

We conduct stakeholder interviews, requirement workshops, and existing system audits, defining business objectives, feature scope, and native device API requirements. This phase produces a full React Native specification covering architecture pattern, state management selection (Redux vs Zustand vs React Query), Firebase vs REST backend decision, native module requirements, and a phased delivery roadmap with fixed sprint milestones.

UI/UX Design & Prototyping

We design React Native interfaces in Figma, building platform-adaptive layouts respecting iOS Human Interface Guidelines and Android Material Design 3, and producing high-fidelity interactive prototypes validated with stakeholders before development begins. Every design accounts for React Native's StyleSheet rendering and Animated API, for pixel-accurate implementation across every target device size.

React Native Development

We build in two-week agile sprints, implementing TypeScript component architecture, Redux or Zustand state management, Firebase or REST/GraphQL API integration, and native module bridging for device hardware features. React Native's Fast Refresh keeps iteration fast throughout every sprint, allowing real-time UI validation without full rebuild cycles.

Testing & Quality Assurance

We run a full React Native QA cycle, covering Jest unit testing, Detox end-to-end UI automation across iOS and Android device matrix, Firebase Test Lab real device testing, Flipper performance profiling for JavaScript and UI thread bottlenecks, and App Store and Google Play submission compliance validation. Nothing proceeds to deployment until all priority issues are resolved and client sign-off is confirmed.

App Store & Google Play Deployment

We manage simultaneous App Store and Google Play submission, configuring code signing, build variants for production environments, store listing metadata preparation, and CI/CD pipeline automation via Fastlane and GitHub Actions. Staged rollouts minimize deployment risk for apps with existing user bases.

Maintenance & Ongoing Support

Post-launch we provide crash monitoring via Firebase Crashlytics, React Native version upgrade management, native module compatibility updates for new iOS and Android OS releases, and sprint-based feature development so your app stays current, secure, and performing well without requiring a rebuild every time React Native releases a major update.

Why Businesses Choose ETechViral for React Native Development

Why Businesses Choose ETechViral for React
Native Development

React Native development done right requires deep TypeScript expertise, New Architecture migration experience, and the ability to deliver production-grade iOS and Android performance from a single JavaScript codebase. Here’s what makes our React Native engineering team the right technical partner for your build.

1

React Native & New Architecture Expertise

Our developers build on React Native's New Architecture, implementing JSI for direct native API access, TurboModules for synchronous native module communication, and Fabric renderer for improved UI thread performance. Every app is written in TypeScript with clean architecture principles, producing maintainable, testable codebases that scale without accumulating technical debt

2

JavaScript & React Ecosystem Depth

We implement the full React Native ecosystem, React Navigation for type-safe routing, Redux or Zustand for predictable state management, React Query for server state synchronization, Axios for API communication, and Reanimated 2 for high-performance 60fps animations running on the UI thread. No third-party workarounds, only production-proven libraries with long-term maintenance track records.

3

Native Module Integration

We bridge React Native to native iOS and Android APIs, writing custom Swift and Kotlin native modules for device features without existing community support, integrating Capacitor-style hardware access for camera, Bluetooth, biometrics, and sensors, and resolving the native module compatibility issues that break React Native apps during iOS and Android OS version updates.

4

Agile Delivery With Full Transparency

We run two-week sprint cycles with defined TypeScript deliverables, end-of-sprint builds distributed via TestFlight and Firebase App Distribution for real device testing, and Jira-tracked progress communicated through dedicated Slack channels, so you always know exactly what's been built and what's coming next.

5

CI/CD & App Store Deployment

We automate the full deployment pipeline via Fastlane and GitHub Actions, configuring simultaneous App Store and Google Play submissions, build variant management for development, staging, and production environments, and code signing automation that eliminates manual release overhead. Every release is repeatable, consistent, and low-risk.

6

Post-Launch Support & Version Management

Post-launch we provide Firebase Crashlytics monitoring, React Native version upgrades, resolving breaking changes with each major release, native module compatibility updates for new iOS and Android OS versions, and sprint-based feature development. Your app stays current with React Native's evolving ecosystem without requiring a full rebuild.

React Native App Development Across Industries

React Native’s single TypeScript codebase, native module access, and simultaneous iOS and Android deployment make it a strong technical fit across industries that require real-time data sync, offline capability, biometric authentication, and high-volume transaction handling on both platforms. These are the sectors we have delivered React Native applications for, and the domain-specific requirements we have built against.

Healthcare & Pharmaceutical

We develop HIPAA-compliant healthcare apps, telemedicine platforms, EHR systems, and digital tools that enhance patient care and clinical workflows.

Retail & E-Commerce Technology

We deliver ecommerce websites, mobile shopping apps, POS systems, and retail automation tools designed to improve conversions and customer experience.

Financial Services & Fintech

We develop secure finance software, trading platforms, investment apps, and automation tools designed to enhance financial operations, analytics, and digital transactions.

Social Platforms & Community Applications

We create social networking apps, community platforms, chat features, and content-sharing systems built for engagement, scalability, and modern UX.

Telecommunication & Network System

We build scalable SaaS products with secure architecture, subscription models, automation, and multi-tenant capabilities tailored to business needs.

Media & Entertainment Technology

We create streaming apps, content platforms, OTT solutions, and media management tools that enhance digital entertainment and user engagement.

Need a Dedicated React Native Developer? Our Team Is Available Now.

Skip the hiring pipeline our React Native engineers, experienced in TypeScript, New Architecture, native module bridging, and Fastlane CI/CD deployment, are available for dedicated engagement. Whether you need a single developer embedded in your existing team or a full React Native squad from architecture to App Store submission, we scope and staff your project within 48 hours.

10+ React Native developers available now · TypeScript, Firebase & New Architecture specialists · iOS & Android apps shipped to production

 React Native Projects We've Shipped, Real Apps, Real Outcomes

 React Native Projects We've Shipped, Real
Apps, Real Outcomes

Every portfolio entry below represents a production React Native application delivered to App Store and Google Play, built with TypeScript, React Navigation, Firebase, and native module integration. Each case study includes the technical architecture decisions made and the measurable outcomes delivered post-launch.

Unlimits AI

DentaSmart is a mobile app that uses AI and 3D tech to simplify dental care, from early diagnosis to personalized treatment.

DantaSmart

DentaSmart is a mobile app that uses AI and 3D tech to simplify dental care, from early diagnosis to personalized treatment.

What Clients Say After Shipping Their React Native Application With ETechViral

Our clients include founders, CTOs, and product managers who came to us with React Native requirements, from greenfield mobile apps to legacy bridge architecture migrations. Here’s what they say about working with our team.

Amir Khan and his team is very responsible and works well. We have worked together and have been able to produce a good quality application. It has been easy to manage the project and they has delivered well. I would recommend others to use his services as they provide 100% perfect services.

Yves Rumuri Founder - CallHome Calling App

Amir Khan and his team is very responsible and works well. We have worked together and have been able to produce a good quality application. It has been easy to manage the project and they has delivered well. I would recommend others to use his services as they provide 100% perfect services.

Yves Rumuri Founder - CallHome Calling App

Amir Khan and his team is very responsible and works well. We have worked together and have been able to produce a good quality application. It has been easy to manage the project and they has delivered well. I would recommend others to use his services as they provide 100% perfect services.

Yves Rumuri Founder - CallHome Calling App

Frequently Asked Questions About React Native App Development

Everything you need to know about how we build, optimize, and deploy ReactNative Apps using Service Workers, Workbox, and Web App Manifest, answered directly by our engineering team.

React Native is a JavaScript framework developed by Meta that allows developers to build iOS and Android applications from a single TypeScript codebase, sharing business logic, state management, API integration, and UI components across both platforms. Unlike native development where Swift/Xcode and Kotlin/Android Studio codebases are maintained separately, React Native compiles JavaScript to native UI components via the Fabric renderer, delivering platform-authentic interfaces without maintaining two independent codebases. The New Architecture (JSI, TurboModules, Fabric) has significantly closed the performance gap with fully native applications.
Modern React Native apps built on the New Architecture, with JSI for direct native API access, TurboModules for synchronous native module communication, and Hermes engine for optimized JavaScript execution, deliver 60fps rendering and response times comparable to native applications for the vast majority of use cases. Performance-critical operations like complex animations use Reanimated 2 running directly on the UI thread, bypassing JavaScript entirely. The legacy bridge architecture that caused performance issues in older React Native versions is no longer the default in new projects.
Both are mature, production-deployed cross-platform frameworks. React Native is the stronger choice if your team already has JavaScript and React expertise the codebase, tooling, and mental model transfer directly from web development. Flutter is the stronger choice if you are starting with no existing web codebase and want Dart's stronger type system and Skia/Impeller's pixel-perfect rendering consistency across every platform. For teams already in the React ecosystem, React Native reduces hiring costs, onboarding time, and codebase context-switching significantly.
A focused MVP with core features, authentication, API integration, key user flows, and App Store and Google Play submission, typically delivers in 8 to 12 weeks. More complex applications with custom native modules, real-time Firebase sync, offline-first architecture, or payment integration run 14 to 20 weeks depending on scope. We provide a fixed delivery roadmap with sprint milestones after the technical scoping phase, no open-ended timelines.
Yes, through React Native's native module system, which provides access to the full iOS and Android hardware API surface. Well-maintained community libraries cover camera (react-native-vision-camera), biometrics (react-native-biometrics), Bluetooth (react-native-ble-plx), push notifications via APNs and Firebase Cloud Messaging, GPS, and accelerometer. For device features without existing community support, we write custom native modules in Swift and Kotlin and bridge them directly into the React Native app.
Yes, post-launch we provide Firebase Crashlytics crash monitoring, React Native version upgrade management with breaking change resolution, native module compatibility updates for new iOS and Android OS releases, App Store and Google Play update submissions via Fastlane CI/CD, and sprint-based feature development. React Native releases major updates regularly. Our maintenance process keeps your app compatible with the evolving ecosystem without requiring a full rebuild.

Your React Native App Starts With One Technical Conversation.

No vague proposals. No bloated timelines. Just a free 30-minute consultation with our React Native engineers, and a clear project scope with architecture recommendations delivered within 48 hours.

10+ React Native developers available now · TypeScript · New Architecture · Firebase · Fastlane · 5+ years delivery experience