Android-Based Inventory, Point-of-Sale and Sales Management System with Customer Loyalty Integration

This study presents the development of an Android-based Inventory, Point-of-Sale (POS), and Sales Management System with integrated customer loyalty features. Designed to address operational inefficiencies in small retail businesses, the system automates sales transactions, real-time inventory management, and customer loyalty tracking. Utilizing technologies such as Flutter, Dart, FastAPI, and MySQL, the system ensures scalable, secure, and efficient operations with role-based access control (RBAC). The solution is evaluated based on ISO/IEC 25010 software quality standards, demonstrating significant improvements in transaction efficiency, inventory accuracy, and customer retention.