A comprehensive, production-ready React Native stock market application built with Expo, featuring real-time market data, portfolio management, SIP investments, IPO applications, and advanced trading tools.
- Real-time Market Data - Live stock prices, charts, and market statistics
- Portfolio Management - Track investments, P&L, and performance analytics
- Watchlist - Monitor favorite stocks with price alerts
- Trading - Buy/sell stocks with advanced order types
- SIP Investments - Systematic Investment Plans with auto-debit
- IPO Applications - Apply for Initial Public Offerings
- Transaction History - Detailed transaction records and analytics
- Multi-currency Support - INR, USD, EUR with dynamic conversion
- Dark/Light Theme - Adaptive UI based on system preferences
- Responsive Design - Optimized for mobile, tablet, and web
- Offline Support - Core functionality works without internet
- Push Notifications - Price alerts, market updates, and news
- Biometric Authentication - Secure login with fingerprint/face ID
- Cross-platform - iOS, Android, and Web support
- Type-safe - Full TypeScript implementation
- State Management - Zustand with persistence
- Form Validation - Yup schema validation
- Real-time Updates - WebSocket connections for live data
- Caching - React Query for efficient data management
- Performance - Optimized rendering and memory usage
- Node.js 18+
- Bun (recommended) or npm/yarn
- Expo CLI
- iOS Simulator (Mac) or Android Emulator
# Clone the repository
git clone https://github.com/bhavyajshah/stock-market-app-template.git
cd stock-market-app-template
# Install dependencies
bun install
# Start the development server
bun run start
# For web development
bun run start-web# Start with tunnel (for testing on physical devices)
bun run start
# Web development with debugging
bun run start-web-dev
# Type checking
npx tsc --noEmit
# Linting (if configured)
npx eslint . --ext .ts,.tsx├── app/ # Expo Router pages
│ ├── (tabs)/ # Tab navigation screens
│ │ ├── index.tsx # Home/Dashboard
│ │ ├── portfolio.tsx # Portfolio management
│ │ ├── history.tsx # Transaction history
│ │ ├── sip.tsx # SIP investments
│ │ └── trading.tsx # Trading interface
│ ├── auth/ # Authentication screens
│ ├── profile/ # Profile management
│ ├── stock/ # Stock details
│ └── transaction/ # Transaction details
├── components/ # Reusable UI components
│ ├── common/ # Common components
│ ├── forms/ # Form components with validation
│ ├── charts/ # Chart components
│ └── ui/ # Base UI components
├── constants/ # App constants and configuration
├── hooks/ # Custom React hooks
├── mocks/ # Mock data for development
├── store/ # Zustand state management
├── types/ # TypeScript type definitions
├── utils/ # Utility functions
└── validation/ # Yup validation schemas
- Zustand - Primary state management with persistence
- React Query - Server state and caching
- AsyncStorage - Local data persistence
- Expo Router - File-based routing system
- Stack Navigation - For hierarchical navigation
- Tab Navigation - Bottom tab bar with custom styling
- StyleSheet - React Native's built-in styling
- Theme System - Centralized color and typography
- Responsive Design - Adaptive layouts for all screen sizes
API Layer → React Query → Zustand Store → Components
↓
AsyncStorage (Persistence)
- Primary: #007AFF (iOS Blue)
- Secondary: #34C759 (Success Green)
- Accent: #FF3B30 (Error Red)
- Background: #F2F2F7 (Light Gray)
- Surface: #FFFFFF (White)
- Headings: SF Pro Display (iOS) / Roboto (Android)
- Body: SF Pro Text (iOS) / Roboto (Android)
- Monospace: SF Mono (iOS) / Roboto Mono (Android)
All components follow iOS Human Interface Guidelines and Material Design principles with custom adaptations for the financial domain.
- JWT token-based authentication
- Biometric authentication support
- Secure token storage in Keychain/Keystore
- End-to-end encryption for sensitive data
- Certificate pinning for API calls
- Input validation and sanitization
- No tracking without consent
- Local data processing where possible
- GDPR and CCPA compliant
- Code Splitting - Lazy loading of screens
- Image Optimization - WebP format with fallbacks
- Bundle Analysis - Regular bundle size monitoring
- Memory Management - Proper cleanup of subscriptions
- App Size: < 50MB (iOS/Android)
- Cold Start: < 3 seconds
- Hot Reload: < 1 second
- Memory Usage: < 100MB average
# Unit tests
npm run test
# Integration tests
npm run test:integration
# E2E tests (if configured)
npm run test:e2e- Components: 90%+
- Utils: 95%+
- Stores: 85%+
- Overall: 90%+
# Build for iOS
eas build --platform ios
# Build for Android
eas build --platform android
# Submit to stores
eas submit --platform all# Build for web
npx expo export --platform web
# Deploy to Vercel/Netlify
# Follow platform-specific deployment guides- iOS 13.0+
- iPhone and iPad support
- Native iOS components
- App Store ready
- Android 6.0+ (API 23)
- Material Design components
- Google Play ready
- Android TV support (planned)
- Modern browsers (Chrome 80+, Safari 13+, Firefox 75+)
- Progressive Web App features
- Responsive design
- Offline functionality
- Fork the repository
- Create a feature branch
- Make your changes
- Add tests for new features
- Submit a pull request
- TypeScript strict mode
- ESLint + Prettier configuration
- Conventional commit messages
- Component documentation
- Update documentation
- Add/update tests
- Ensure CI passes
- Request code review
- Merge after approval
This project is licensed under the MIT License.
For enterprise support, custom development, or consulting services, contact us at bhavyashah0105@gmail.com
- Expo Team - For the amazing development platform
- React Native Community - For continuous improvements
- Contributors - Everyone who helped build this app
- Design Inspiration - iOS, Instagram, Airbnb, Notion, Linear
- Options trading
- Crypto support
- Advanced charting tools
- Social trading features
- AI-powered insights
- Voice commands
- Apple Watch app
- Desktop application
- Multi-broker support
- International markets
- Advanced portfolio analytics
- Institutional features
Built with ❤️ by the Bhavya J Shah
Making financial markets accessible to everyone