With an average user rating of 4.9★, the free cortisol tracker category is one of the App Store's strongest. Browse all 247+ apps we track, sorted so the most loved ones surface first.
Compare top Free Cortisol Tracker Apps (July 2026)
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 uses AI to analyze stress levels by scanning your face, tracking food intake, sleep patterns, and cognitive performance. It provides detailed reports and personalized suggestions to help manage cortisol.
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.
What are the best free cortisol tracker apps for iPhone?
Cortisol+ Stress & HRV Monitor tops our free cortisol tracker apps ranking as of July 2026, with a 4.7-star average from 48 App Store ratings, and it's free to download.
Does Cortisol+ Stress & HRV Monitor have ads or in-app purchases?
Cortisol+ Stress & HRV Monitor shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
How many free cortisol tracker apps are on the App Store?
We track 247+ free cortisol tracker 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.