This app estimates your cortisol stress levels by analyzing multiple biometric factors from your Apple Watch. It provides a comprehensive stress score from 0-100, offering insights beyond simple heart rate monitoring.
This app helps you understand your body's signals by analyzing heart rate variability and integrating data from over 1,000 devices and apps. It provides science-backed insights into sleep, stress, heart health, and activity to help you feel better and optimize your wellness.
This wellness app helps women lower their stress hormone levels and reclaim their energy. It provides a personalized daily practice based on science-backed habits to calm the nervous system and improve well-being.
Cortisol+ Stress & HRV Monitor tops our cortisol apps ranking as of July 2026, with a 4.7-star average from 39 App Store ratings, and it's free to download.
Are there free cortisol apps for iPhone?
Yes — 20 of the top cortisol apps we rank are free to download, including Cortisol+ Stress & HRV Monitor and Welltory: Health, Heart Rate.
Does Cortisol+ Stress & HRV Monitor have ads or in-app purchases?
Cortisol+ Stress & HRV Monitor has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
How many cortisol apps are on the App Store?
We track 197+ cortisol apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
How does Cortisol+ estimate stress levels?
Cortisol+ estimates stress levels by analyzing multiple biometric data points from your Apple Watch, including heart rate variability (HRV), resting heart rate, respiratory rate, and sleep quality. It uses a multi-factor algorithm to calculate a comprehensive stress score.
What devices does Cortisol+ support?
Cortisol+ is designed to work with both iPhone and Apple Watch, leveraging the biometric sensors on the watch to gather the necessary health data.