HealthStack:- A Digital Healthcare Ecosystem for Secure Health Data Management

The increasing demand for efficient healthcare ser- vices has emphasized the need for secure and centralized man- agement of medical data. Traditional healthcare systems often rely on paper-based or fragmented digital records, resulting in inefficiencies, delayed diagnosis, and poor coordination among healthcare providers. This paper presents HealthStack, a dig- ital healthcare ecosystem designed to provide secure, mobile- accessible, and centralized health data management. The system enables patients to store and access medical records, book doctor appointments, and share health information securely. Health- Stack is implemented using an Android application developed in Java, a Node.js backend, and Supabase as the cloud platform for database management, authentication, and storage. Advanced security mechanisms including role-based access control, row- level security, SSL/TLS encryption, and two-factor authentication ensure data privacy and integrity. The proposed system enhances healthcare accessibility, improves doctor–patient coordination, and supports sustainable, paperless healthcare practices.