BodyState is a lifestyle and health & fitness application designed for the iPhone platform. It leverages your Apple Watch data to create a personalized experience aimed at optimizing your lifestyle, habits, and training routines to help you reach your full potential. The app utilizes four key metrics to generate a score ranging from 1 to 100, reflecting your body's current state. A higher score signifies readiness and vitality for facing life's challenges.

The four essential metrics tracked by BodyState include sleep quality, fatigue levels, heart rate variability, and resting heart rate. By comparing these metrics against your individual baselines, the app provides insights into your energy levels and overall health status. BodyState functions as a dynamic system, where your body's 'battery' recharges during sleep and depletes during wakefulness. Physical activity and sleep patterns directly influence the battery's energy levels, with high activity consumption and increasing sleep pressure affecting the depletion rate.