Development of a Mobile POS Application with NFC and Card Scanning Capabilities for Small Vendors

Small vendors and service providers often face difficulty accepting card payments efficiently and securely on the go. Existing solutions may be costly, inflexible, or require multiple devices, resulting in delays and lost sales when customers cannot pay with cash. The need exists for a lightweight, secure mobile POS system that enables easy card acceptance via NFC or card scanning, with seamless payment processing.

A small to mid-sized retail or service vendor looking for a mobile solution to accept card payments directly on their smartphones.

• Create a mobile application compatible with both Android and iOS platforms to facilitate quick and secure card payments in retail and service settings.
• Enable NFC tap payments by integrating contactless card reading capabilities.
• Incorporate camera-based credit card scanning to auto-fill card details for faster transactions.
• Implement secure payment processing utilizing a third-party payment gateway with support for splitting payments and multiple accounts.
• Ensure transaction success with funds reflecting in vendor accounts within 2 days.
• Maintain high security standards by ensuring no card details are stored locally on the device.
• Design the system for easy scalability and future feature enhancements such as transaction history and inventory management.

• Quick and simple card payment processing with PIN entry and card detail input.
• Support for NFC tap payment, enabling contactless card transactions.
• Camera integration to scan credit/debit cards for automatic data entry.
• Secure transmission of card data to the payment gateway without local storage.
• Real-time transaction confirmation and funds transfer to designated accounts, with settlements within 48 hours.
• Ability to handle a 10% transaction fee or commission, with support for splitting payments into multiple accounts.
• User authentication and secure PIN entry for payment authorization.

• Stripe APIs for secure payment processing and transaction management
• NFC reading libraries for contactless card data extraction
• Camera APIs utilizing Card.io or similar for card scanning
• Backend server for handling transaction requests and user data
• Secure account transfer APIs supporting splitting payments into multiple accounts

• Payment processing must be secure and compliant with PCI standards.
• Transaction success rate target of 99% with minimal latency.
• Funds should reflect in vendor accounts within 48 hours.
• The system should support scaling to handle over 500,000 active users globally.
• High availability and fault tolerance for seamless operation in various environments.
• No card data should be stored locally on devices to ensure data security.

The new mobile POS application is expected to significantly streamline payments for small vendors by enabling quick, contactless, and secure card transactions. It aims to facilitate over $5 million in transactions monthly, enhancing transaction efficiency and security, reducing reliance on cash, and expanding sales opportunities. Its user-friendly interface and scalable architecture will support growth and future feature integration, ultimately increasing vendor revenue and customer satisfaction.