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Requires a Polar H6/H7/H10 HRM monitor, although it may work with other BLE Bluetooth HRM monitors.

Heart Rate Variability (HRV) is a great indicator of what is going on inside your body. It's a measurement of how well the mind can slow heart rate (HR), which is an indicator of overall health and stress. In general, better health is indicated using HRV when there is more variability from an in-breath (HR speeding up) to an out-breath (HR slowing down). A simple one-minute measurement each day can be enough to predict when it is time to take it easy, to avoid sickness or injury.

This application has some nice features like export RAW RR files for Kubios testing as well as unlimited time testing if you would like to perform other types of HRV tests. Additionally, you can export all data including RR files to DropBox.

What’s New

Version 2.9.2

We fixed a bug that had been created in 2.9.1 (the last version) that would not allow saving readings. We also temporarily removing user review popup until we can do more testing.

Ratings and Reviews

3.6 out of 5
9 Ratings

9 Ratings

BigGriz1 ,

Works well

This easily picked up my Polar Bluetooth sensor and provided my HRV.
I didn't know what the info meant, ie is a higher or lower number better (higher). A little coaching or info would give it 5 stars. Thanks

Twarneke ,

Simple and easy to use

HRV+ Connected on the first try with my Jarv BT monitor. Get your music or podcast app running first, then start HRV and you can listen while you work out and monitor your heart rate.

A nice enhancement would be to plot an exercise session by the second.

broken_ankle ,

Perfect tool for monitoring workout stress

I have tried a few of the HRV apps to help me evaluate my workouts. This works flawlessly and only requires a compatible BT Polar HR. It's simple to use with options to select time and export data. This is the app I like the best!

App Privacy

The developer, ZUZ LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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