Athlytic

Athlytic is an iPhone and Apple Watch app that turns the health data an Apple Watch already collects into recovery and training-readiness insights, offering an alternative to dedicated wearables like Whoop for people who prefer not to wear a second device. Each morning it calculates a recovery percentage, based primarily on how a user's overnight heart rate variability compares to their personal sixty-day baseline, along with resting heart rate and sleep, to indicate how ready the body is to train hard that day. Throughout the day it tracks an effort or exertion score that reflects cardiovascular load from workouts and general activity over a rolling seven days, so a user can balance stress and rest. Athlytic organizes everything into recovery, exertion, sleep, and energy views, with trends over time and a yearly recap of workouts. It relies entirely on Apple's sensors and HealthKit, so there is no subscription to a hardware maker and no separate band to charge. Athlytic has won app-of-the-year style recognition in the Apple ecosystem. It is free to download with a usable free tier that shows basic recovery scoring, and a paid subscription unlocks the full set of metrics, history, and insights.