🚀 NeuraCoin - Fintech Crypto Trading App

NeuraCoin is a modern, cross-platform fintech application built with React Native and Expo, designed to provide users with a seamless cryptocurrency trading and portfolio management experience.

✨ Features

🔐 Authentication System

• User registration and login
• Email verification flow
• Secure token-based authentication
• Profile management
• Secure storage for sensitive data

📱 Cross-Platform Support

• iOS (Native & Expo Go)
• Android (Native & Expo Go)
• Web (Progressive Web App)

💰 Crypto Features

• Real-time cryptocurrency market data
• Portfolio tracking and management
• Transaction history
• Market analytics and insights
• Secure crypto wallet simulation

🎨 Modern UI/UX

• Dark theme with gradient designs
• Smooth animations and transitions
• Responsive design for all screen sizes
• Intuitive navigation with tab-based structure

🔧 Technical Features

• TypeScript for type safety
• State management with Zustand
• Local data persistence
• Toast notifications
• Pull-to-refresh functionality
• Offline-first architecture

🔮 Roadmap

Phase 1 (Current)

• ✅ Authentication system
• ✅ Basic navigation
• ✅ Market data display
• ✅ Portfolio overview

Phase 2 (Coming Soon)

• 🔄 Real trading functionality
• 🔄 Advanced charts and analytics
• 🔄 Push notifications
• 🔄 Biometric authentication
• 🔄 Social features

Phase 3 (Future)

• 📋 DeFi integration
• 📋 NFT marketplace
• 📋 Advanced trading tools
• 📋 Multi-wallet support

🚀 Quick Start

Prerequisites

• Node.js (v20.19.4 or higher)
• npm or yarn
• Expo CLI
• Expo Go app on your mobile device

Installation

1. Clone the repository

git clone https://github.com/yourusername/NeuraCoin.git
cd NeuraCoin

2. Install dependencies

npm install
# or
yarn install

3. Start the development server

npx expo start
# or
expo start

4. Run on device/simulator
   • iOS: Press i in the terminal or scan QR code with Camera app
   • Android: Press a in the terminal or scan QR code with Expo Go app
   • Web: Press w in the terminal

🏗️ Project Structure

NeuraCoin/
├── app/                          # App routing (Expo Router v3)
│   ├── (auth)/                   # Authentication screens
│   │   ├── login.tsx
│   │   ├── register.tsx
│   │   ├── verify.tsx
│   │   └── welcome.tsx
│   ├── (tabs)/                   # Main app tabs
│   │   ├── index.tsx            # Home screen
│   │   ├── market.tsx           # Market data
│   │   ├── portfolio.tsx        # Portfolio management
│   │   ├── profile.tsx          # User profile
│   │   └── transactions.tsx     # Transaction history
│   └── _layout.tsx              # Root layout
├── components/                   # Reusable UI components
│   └── features/                # Feature-specific components
├── lib/                         # Core utilities and services
│   ├── api/                     # API integrations
│   ├── database/                # Local storage
│   ├── services/                # Business logic
│   ├── store/                   # State management (Zustand)
│   └── utils/                   # Helper functions
├── types/                       # TypeScript type definitions
└── assets/                      # Static assets

🛠 Tech Stack

• Framework: React Native with Expo
• Language: TypeScript
• Navigation: Expo Router (file-based routing)
• State Management: Zustand
• Storage: AsyncStorage + Expo SecureStore
• UI: React Native + Expo Linear Gradient
• Icons: Expo Vector Icons
• API: CoinGecko API (with fallback mock data)
• Development: Expo Go for rapid development

📦 Key Dependencies

Environment Variables

Create a .env file in the root directory:

EXPO_PUBLIC_API_BASE_URL=https://api.your-backend.com
EXPO_PUBLIC_CRYPTO_API_KEY=your_crypto_api_key

Expo Configuration

The app is configured in app.json:

{
  "expo": {
    "name": "NeuraCoin",
    "slug": "neuracoin",
    "version": "1.0.0",
    "platforms": ["ios", "android", "web"]
  }
}

🧪 Testing

# Run tests
npm test

# Run tests with coverage
npm run test:coverage

# Run tests in watch mode
npm run test:watch

📱 Building for Production

iOS

# Build for iOS
expo build:ios

# Or with EAS Build
eas build --platform ios

Android

# Build for Android
expo build:android

# Or with EAS Build
eas build --platform android

👨‍💻 Author

Tushar Verma

• GitHub: @vtushar06

🙏 Acknowledgments

• Expo team for the amazing development platform
• React Native community for continuous support
• Contributors and beta testers

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Made with ❤️ by Tushar Verma