2025-05-18 00:00:00 This app receives PPG (photoplethysmography) signals and IMU (inertial measurement unit) data from external devices and analyzes heart rate variability indicators such as the user's heart rate (HR), SDNN, and RMSSD in real time. It also provides a variety of health and exercise-related information, including activity intensity, activity duration, average and current heart rate, VO2max (maximum oxygen uptake), and HRR (heart rate recovery rate). Real-time data processing and user-friendly visualization features allow users to intuitively check their physical condition and exercise efficiency. This app is a powerful tool for managing your health, helping you create better lifestyle habits and achieve your goals through personalized data.