The app extracts, plots, stores, and exports heart rate, RR-intervals, and time and frequency domain heart rate variability features. It uses photoplethysmography to detect changes in blood volume without requiring a heart rate monitor.
The app analyzes heart rate variability through a protocol of laying-to-standing and breathing tests. It assesses physiological status, physical fitness, and current stress and wellness levels.
Tracks workout duration, calories burned, and heart rate during sessions. Starts and stops workouts automatically based on proximity to a set gym location. Syncs data with Apple's . Allows customization of location trigger distance.