EXECUTIVE SUMMARY This technical document analyzes the architecture, motivation, software design, and return on investment (ROI) of "HealthBridgeApp". This project was built to solve a critical issue in the fitness wearable ecosystem: the lock-in of Garmin's biometric data within its closed ecosystem and the prohibitive costs of enterprise APIs or third-party MCP (Model Context Protocol) solutions. By leveraging Android Health Connect as a local, free synchronization bridge, HealthBridgeAp...