React Native Development Services

iOS & Android
From One
Codebase

CrestCoder builds high-performance React Native apps for iOS and Android from a single codebase for businesses across India, Australia, South Africa, and the UK. New Architecture, JSI, Fabric — production-ready in 2026.

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8+
Years shipping apps
120+
Apps in production
4
Countries served
4.9/5 on Clutch · 32 verified reviews
Listed on GoodFirms
100% in-house team · no subcontracting
NDA on every project
React Native in 2026

The New Architecture
is no longer optional

React Native 0.84 ships with the New Architecture as default. The old bridge architecture was permanently disabled in version 0.82. This isn't a feature — it's the entire framework rebuilt for performance.

43% faster cold starts

App initialization is dramatically faster thanks to JSI and Hermes optimization — measurable difference on first launch.

39% faster rendering

Fabric renderer and synchronous JSI eliminate the serialization bottleneck of the old bridge — smooth 60fps animations.

26% lower memory

Direct native module access via JSI uses less memory than the old asynchronous bridge — matters on older devices.

TypeScript first

First-class TypeScript integration, improved type definitions, and better IDE support — fewer runtime surprises.

What We Build

React Native
development services

01

Custom React Native Apps

Bespoke iOS and Android apps from a single codebase — consumer apps, SaaS, marketplaces, delivery platforms.

02

App Design & UI/UX

Pixel-perfect iOS Human Interface and Android Material Design specs — validated in Figma before development.

03

API & Backend Integration

REST, GraphQL, Firebase, Stripe, Twilio, Google Maps — plus Node.js or Laravel backends paired with your React Native frontend.

04

App Migrations

Migrate from Swift, Kotlin, Java, or Objective-C to React Native — consolidate two platforms into one codebase.

05

Real-Time Features

Live notifications, push messaging, real-time data sync, and WebSocket integration for chat, alerts, and dashboards.

06

Maintenance & Support

Monthly retainers covering OS updates, crash monitoring, bug fixes, and feature additions for both iOS and Android.

React Native in Production

Mobile apps
built and shipped

ZegoFit Health App
Health · Fitness

ZegoFit — Workout Tracking App

Challenge

A health and fitness startup needed a mobile app that tracked workouts, connected users with trainers, and delivered personalised fitness plans — launching on both iOS and Android simultaneously.

Solution

We built ZegoFit on React Native with real-time workout tracking, trainer profiles, and plan personalisation. One codebase deployed to both app stores, cutting development time in half.

React NativeShared codebase
50k+Downloads post-launch
View Full Case Study →
DipDap Laundry
On-Demand · Logistics

DipDap — Multi-Platform Laundry Marketplace

Challenge

A laundry service startup needed a three-app ecosystem: customer app, driver/operator app, and admin dashboard — all synchronized in real time with live order tracking.

Solution

We built the customer and driver apps in React Native from a single codebase, shared logic across both, and connected them to a Node.js backend for real-time order synchronization and live tracking.

Real-TimeOrder tracking
Two appsOne codebase
View Full Case Study →
Logistics Delivery
Logistics · Courier

Logistics Delivery App — Live GPS Tracking

Challenge

A courier and delivery company needed a booking app with live GPS driver tracking, proof-of-delivery photos, and real-time push notifications — critical for transparency and customer confidence.

Solution

We built the entire app in React Native with Maps integration, live GPS updates, offline-capable delivery proof capture, and push notification dispatch — all in one codebase for iOS and Android.

GPS TrackingLive delivery updates
Offline CapableNo connectivity needed
View Full Case Study →
View All Case Studies
Why CrestCoder

React Native teams
that deliver

New Architecture default

We build on React Native 0.84 with JSI, Fabric, and TurboModules from day one — not the deprecated bridge architecture.

Production experience

120+ React Native apps shipped. We know the edge cases, the tricky integrations, and how to ship on time.

Full project visibility

Two-week sprints with working app demos at the end of each — you see real progress on both iOS and Android.

25-30 person team, senior-led

Small enough that senior React Native engineers stay hands-on, large enough to staff a dedicated app team.

How We Work

Our React Native
development process

01

Discovery & scoping

We map your business goals, target users, and technical requirements — then decide on React Native vs native based on the actual needs.

02

Design & validation

Figma prototypes for both iOS and Android — you interact with the design before a single line of code is written.

03

Agile development

Two-week sprints with working app demos deployed to staging — you can test on real iOS and Android devices throughout.

04

QA & testing

Functional testing on real devices, performance testing, and security review — zero critical bugs before app store submission.

05

Launch & support

We handle App Store and Play Store submissions, then offer optional monthly retainers for maintenance and feature additions.

Common Questions

Frequently
asked questions

Still have questions? Contact us directly.

Which version of React Native do you build on?+
React Native 0.84 (2026) with the New Architecture as default. JSI, Fabric renderer, and TurboModules are now mandatory — the old bridge architecture was permanently disabled in version 0.82. This delivers 43% faster cold starts, 39% faster rendering, and 26% lower memory usage compared to the legacy bridge.
Can React Native match native iOS and Android quality?+
Yes — for the vast majority of business apps. React Native uses real native UI components, so buttons, navigation, and animations behave exactly as users expect on each platform. With the new architecture, performance is within 5-10% of fully native development for most use cases.
How much code is shared between iOS and Android?+
Typically 85-95% of the codebase is shared. Only platform-specific integrations (deep camera access, custom sensors, platform-specific SDKs) require native modules.
React Native vs Flutter — which should I choose?+
React Native for business apps, marketplaces, SaaS, and teams using JavaScript. Flutter for graphics-heavy apps (games, design tools) where absolute performance is critical. For most projects — delivery apps, fintech, social, e-commerce — React Native is faster to build and cheaper to maintain.
Can you migrate an existing native app to React Native?+
Yes. We regularly migrate apps from Swift, Kotlin, Java, or Objective-C to React Native. The typical migration takes 8-16 weeks depending on complexity and custom native code.
How do you price a React Native app?+
Most projects are quoted as a fixed price after a discovery call. A standard cross-platform app typically starts around $8,000-$18,000. Apps with complex backend integrations, payments, or real-time features usually run $20,000-$50,000+, depending on scope.
Get Started

Tell us about
your app idea

We reply within 24 hours with an honest estimate and timeline — no obligation.

Confidential. NDA available on request.

Ready to Start?

Build Your
React Native App

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