HashPay is a decentralized mobile payment application built for freelancers and consumers, enabling fast, secure, and low-cost internation transactions through a familiar UPI-style interface.
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Designed with a focus on cross-border compatibility, supporting secure, decentralized, and real-time global crypto payments.
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💸 UPI-Style Crypto Payments
Send and receive crypto (e.g., ETH) instantly like traditional UPI. -
📱 QR Code-Based Transactions
- Dynamic QR codes for invoice-based payments
- Static QR codes for wallet-based direct payments
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📄 Invoice Management & Payment Requests
- Generate and share payment links
- Allow clients to scan & pay via QR
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🔐 MetaMask Integration
- Secure wallet authentication
- Connect/disconnect MetaMask wallet
- Sign and process transactions seamlessly
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💳 Cryptocurrency Transactions
- Transfer ETH to any valid Ethereum address
- Monitor wallet balance and transaction status
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📦 Wallet Management
- View wallet status
- Handle user sessions and wallet connections
| Tech | Description |
|---|---|
| Kotlin | Primary language for Android development |
| Jetpack Compose | Modern Android UI toolkit |
| MVVM Architecture | Clean separation of UI & business logic |
| MetaMask SDK | For wallet authentication & signing |
| QR Code Scanner | For easy crypto address input |
| Room DB | Local caching for transactions and state |
| Coroutines & Flow | Async operations and reactive streams |
- Clone the repo
git clone https://github.com/yashc18/HashPay.git