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Systrocode
React Native App Development

JavaScript-powered mobile applications.

We build high-performance cross-platform mobile apps using React Native, leveraging your existing JavaScript/TypeScript expertise for iOS and Android simultaneously.

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SYSTEMS_CANVAS // ACTIVE_STATE
RN_CORE
STATE_API
OTA_DEPLOY
CODE_SOURCE
// React Native Component with TypeScript
import React from 'react';
import { View, Text, StyleSheet } from 'react-native';
import Animated, {
  useSharedValue,
  useAnimatedStyle,
  withSpring,
} from 'react-native-reanimated';

interface ProductCardProps {
  title: string;
  price: number;
}

export const ProductCard: React.FC<ProductCardProps> = ({
  title,
  price,
}) => {
  const scale = useSharedValue(1);
  const animatedStyle = useAnimatedStyle(() => ({
    transform: [{ scale: scale.value }],
  }));

  return (
    <Animated.View style={[styles.card, animatedStyle]}>
      <Text style={styles.title}>{title}</Text>
      <Text style={styles.price}>${price.toFixed(2)}</Text>
    </Animated.View>
  );
};
Target Architecture

React Native Architecture

New Architecture with Fabric renderer and TurboModules for near-native performance, bridgeless communication, and concurrent rendering capabilities.

LanguageTypeScript
RuntimeHermes
ArchitectureNew Arch
95%
Code SharingiOS & Android
<100ms
Bridge LatencyNew Architecture
2x
Ship Fastervs dual native
OTA
Instant UpdatesNo store review
Technology Stack

Tools & Frameworks We Engineer With

01 / Framework

Core

  • React Native: Cross-platform mobile framework
  • Expo: Managed workflow & dev tools
  • TypeScript: Type-safe development
  • Hermes: Optimised JS engine for mobile
02 / Navigation

Navigation

  • React Navigation: Routing and navigation library
  • Deep Linking: Universal links & app schemes
  • Tab/Stack: Native tab and stack navigators
  • Modals: Bottom sheets & modal overlays
03 / Data

Data

  • React Query: Server state & caching
  • Zustand: Lightweight global state
  • MMKV: Ultra-fast key-value storage
  • AsyncStorage: Persistent async storage
04 / Quality

Quality

  • Jest: Unit & snapshot testing
  • Detox: End-to-end testing framework
  • Maestro: Mobile UI testing automation
  • Flipper: Debugging & performance tools
Our Clients

Who We Work With

01 // SECTOR

FinTech & Banking

Secure financial apps with biometric auth, real-time transactions, and cross-platform consistency.

CapabilityBiometrics
02 // SECTOR

Social & Messaging

Real-time chat, feeds, and social features with push notifications and media handling.

CapabilityReal-Time
03 // SECTOR

E-Commerce

Shopping apps with native payment integration, product catalogs, and personalised experiences.

CapabilityPayments
04 // SECTOR

Healthcare

Patient portals, telehealth, and health tracking apps with HIPAA-compliant architecture.

CapabilityHIPAA
05 // SECTOR

Media & Streaming

Video players, content platforms, and media-rich apps with offline support.

CapabilityStreaming
06 // SECTOR

Enterprise

Internal tools, field service apps, and workforce management with SSO and MDM support.

CapabilitySSO
How We Work

Our Delivery Lifecycle

We operate under a structured, predictable lifecycle. Click any step to inspect deliverables.

01

Platform Strategy & Requirements

We define platform targets, shared code strategy, and native module requirements.

Key Sprint Tasks
Map feature parity across platforms
Identify native module needs
Define Expo vs bare workflow
Plan OTA update strategy
DELIVERABLE // rn-scope.json
{
  "platforms": ["iOS", "Android"],
  "workflow": "Expo Managed",
  "architecture": "New Architecture",
  "codeShare": "95%"
}
Common Questions

Frequently Asked

React Native leverages your existing JavaScript/TypeScript team and npm ecosystem. Flutter requires learning Dart. React Native offers better native module interop and a larger community, while Flutter has stronger out-of-the-box UI consistency. We recommend React Native when your team already has JS expertise.

With the New Architecture (Fabric + TurboModules), React Native achieves near-native performance. The bridgeless architecture eliminates serialisation overhead, and Hermes engine provides fast startup times and low memory usage.

We recommend Expo for most projects. Expo's managed workflow handles native builds, OTA updates, and provides a rich set of pre-built modules. We only eject to bare when specific native modules require custom native code not available in Expo.

Yes, that's a key advantage of React Native. Your team's React, TypeScript, and state management knowledge transfers directly. We help bridge the gap with mobile-specific patterns like navigation, gestures, and native APIs.

Ready to build with React Native?

Get a technical proposal leveraging your JavaScript ecosystem within 48 hours.

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