Your Apple Watch measures your heart rate every 4 minutes during the day. With CardioBot, you can easily understand the data captured by the Apple Watch so you can improve your lifestyle and discover notable patterns.

CardioBot is an iPhone app that reads heart rate data stored by the Apple Watch in HealthKit. The app separates readings in low, resting, high resting, and elevated heart rate through different colors and charts, allowing you to see averages at a glance.

CardioBot also supports viewing data captured during workouts, and it can also provide sleep analysis information for a complete dashboard of your heart rate. All of this is done with a minimal and elegant interface that makes it easy to view statistics for individual days, browse detailed timelines, and compare day-to-day changes.

This app requires an iPhone that has the Health App installed. Heart readings are read from the Health Data Store which is populated by your Apple Watch.

Featured by Apple in more than 85 countries!

What's New

Version 2.3

Heart rate variability analysis added.
HRV is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat interval.
A common belief is that high HRV is good and low HRV is bad. Or, in terms of observing the overall trend, increasing HRV trends are good, indicative of positive adaptation or increases in fitness. Decreasing trends are bad, indicative of fatigue accumulation or “overtraining” and performance decrements.

Ratings and Reviews

4.3 out of 5

30 Ratings

30 Ratings

The app that lets you get 59 hours of sleep a day

Austin Aggie

We all want more sleep, right ? Well this app helped me find a way to get 59 hours of sleep (on a weeknight no less).

This app provides minimal value and is not accurate.

Useful app


Works great with my new Apple Watch 2 and iPhone 7.

Promising but beta/flawed/limited


Looks great and hope they improve it. Also FREE.

But sleep data is nonsensical and seems heart rate data is suspect.

Developer Response

CardioBot show heart rate data for your sleep and find best sleep time. We are working hard every day to bring new features. Thanks for your feedback.


Majid Jabrayilov
20.2 MB
Health & Fitness
Requires iOS 11.0 or later. Compatible with iPhone and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
© Majid Jabrayilov


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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