Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

HRV + Screenshots

iPhone

About HRV +

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 in the Latest Version 2.9.2

Last updated on Apr 29, 2019

Old Versions

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.

Version History

2.9.2

Apr 29, 2019

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.

2.9

Apr 24, 2019

-User Reviews

2.5.1

Jan 16, 2019

Updated so Dropbox works again

2.3

Sep 22, 2017

- Fixed exporting of old RR files
- FIxed Month format for non-English users
- Set Default record method to previously saved method

2.2.0

Jul 1, 2017

Fix to make Polar H10 work

2.1.6

Feb 27, 2017

Improved styles on chart to be more readable
Adding filter, to only show last 2 years of data which fixes a bug.

2.1.0

Oct 24, 2016

New Design
Improved HR beat error filtering for scoring and metrics (in some individuals this may result in different HRV scores)
Removed all error handling from r-r export
Fixed bug that app could not connect if HRM was paired to iOS device
Allow full RR file export to dropbox
Fixed bug crashing on large file export

1.4.6

Oct 10, 2015

Fixes to support iOS 9.0
Small improvement to r-r interval accuracy

1.4.2

Oct 8, 2014

Fixed new bug introduced in last version with tab names being duplicated

1.4

Sep 30, 2014

Fixed IOS 8 HRM Connectivity Issue
Fixed Menu in IOS 8

1.3

May 9, 2014

Added Full R-R Export (not limited to 501 Intervals)
Added Day of Week on Grid
Slight UI and Usability Improvements

1.2

Nov 26, 2013

- Improved handling of disconnected HRM devices
- Improved handling when bluetooth is off / on
- Small visual enhancements
- Other small miscellaneous enhancements

1.1

Nov 10, 2013

- fixed critical bug in rr-interval export
- changed rr-interval export from .csv to .txt file and 0
- removed header row for easier import to Kubios
- improved layout on iOS7 devices
- Other small enhancements

1.0

Oct 22, 2013

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