SelfLoops HRV
measure heart rate variability
FreeOffers In-App Purchases
2.7for iPhone, iPad and more
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SelfLoops HRV Screenshots
About SelfLoops HRV
The SelfLoops HRV application calculates and displays the heart rate variability. The application is used by pro-athletes, Olympians and University researchers.
Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat intervals (called R-R).
There are several metrics used in the scientific literature, we calculate: SDNN, RMSSD, pNN50, AVNN.
We also calculate the same metric used by BioForce HRV and ithlete, that is ln(RMSSD)x20, we have called it HRV in the app.
To use the application you need an heart rate monitor that adheres to the Bluetooth Low Energy (also called Bluetooth Smart, Bluetooth 4.0).
By using the application you expressly agree that SelfLoops is not providing medical advice with this application. Please, consult or ask for the advice to your physician or other medical professionals for any health related questions.
For an intro to HRV see: http://en.wikipedia.org/wiki/Heart_rate_variability
Note: If you cannot connect your Bluetooth Smart heart rate monitor, make sure that is not paired already with another application or device. Also, do not pair the heart rate monitor in the Settings of your device. The Bluetooth standard does not allow to have the heart rate monitor connected at the same time to multiple apps or devices.
Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat intervals (called R-R).
There are several metrics used in the scientific literature, we calculate: SDNN, RMSSD, pNN50, AVNN.
We also calculate the same metric used by BioForce HRV and ithlete, that is ln(RMSSD)x20, we have called it HRV in the app.
To use the application you need an heart rate monitor that adheres to the Bluetooth Low Energy (also called Bluetooth Smart, Bluetooth 4.0).
By using the application you expressly agree that SelfLoops is not providing medical advice with this application. Please, consult or ask for the advice to your physician or other medical professionals for any health related questions.
For an intro to HRV see: http://en.wikipedia.org/wiki/Heart_rate_variability
Note: If you cannot connect your Bluetooth Smart heart rate monitor, make sure that is not paired already with another application or device. Also, do not pair the heart rate monitor in the Settings of your device. The Bluetooth standard does not allow to have the heart rate monitor connected at the same time to multiple apps or devices.
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What's New in the Latest Version 2.7
Last updated on May 17, 2021
Old Versions
Improved the graphs design
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Version History
2.7
May 17, 2021
Improved the graphs design
2.6
Jan 6, 2021
Bug fixes and performance improvements
2.5
Jul 30, 2019
bug fixes
2.4
Jul 2, 2019
bug fixes
2.3
Jun 14, 2019
bug fixes
2.2
Jan 22, 2019
dark mode
2.1
Sep 12, 2018
minor bug fixes and updates
2.0
Oct 30, 2017
UI refinements
1.9
May 10, 2017
bugs fixing
1.8
Apr 11, 2017
UI refinements
1.7
Oct 27, 2016
minor bug fixed
1.6
Sep 29, 2016
increased the scale on the y-axis, various refinements and bugs fixing
1.5
Jun 3, 2016
updates for iOS 9
1.4
Apr 8, 2016
improved algorithms accuracy
1.3
Jun 26, 2015
changed from in-app purchase to paid app
1.2
Nov 15, 2014
HRV data export by email and HRV data upload on selfloops.com
plus general refinements and bugs fixing
plus general refinements and bugs fixing
1.1
Oct 16, 2014
fixed minor bug
1.0
Oct 4, 2014
SelfLoops HRV FAQ
Click here to learn how to download SelfLoops HRV in restricted country or region.
Check the following list to see the minimum requirements of SelfLoops HRV.
iPhone
Requires iOS 13.0 or later.
iPad
Requires iPadOS 13.0 or later.
iPod touch
Requires iOS 13.0 or later.
SelfLoops HRV supports English
SelfLoops HRV contains in-app purchases. Please check the pricing plan as below:
HRV premium
$3.99