Everything Cortisol+ does
Wearable stress trends, sleep context and guided breathing, with clear explanations of what the data means.
Cortisol+ brings available Apple Watch readings into a wellness view. Start with the underlying HRV and sleep records, understand the assumptions behind the score, and use the breathing exercise as a short guided pause. The app does not measure cortisol or prove that a lifestyle change affected hormone levels.
HRV stress monitoring
Explore available Apple Watch HRV and other inputs in a wellness score, with a published explanation of weights, baselines and limits.
Sleep and stress patterns
Review available sleep records alongside wearable trends. Sleep data adds context but cannot identify a hormone cause.
Zen mode & breathwork
Follow an animated breathing timer with phase prompts and a cycle counter. A session is a guided practice, not a hormone test.
The three features, in depth
1. HRV stress monitoring
Review available HRV, heart rate and other factors behind the wellness score. Check timestamps and missing inputs before interpreting a change. Personal baselines provide context; they do not establish clinical accuracy.
Explore HRV stress monitoring →
2. Sleep and stress patterns
View the sleep information available through Apple Health alongside your wearable history. Record completeness and your own observations matter. The app cannot explain a nighttime awakening or infer a morning cortisol level.
3. Guided breathing
Use a short animated exercise with breathe-in, hold and breathe-out prompts. You can finish the cycles or end early. A completed timer does not guarantee a particular physiological result.