Heart Rate Variability Logger icon

Heart Rate Variability Logger v1.1.4

Heart Rate Variability Logger screenshot 0 Heart Rate Variability Logger screenshot 1 Heart Rate Variability Logger screenshot 2 Heart Rate Variability Logger screenshot 3 Heart Rate Variability Logger screenshot 4 Heart Rate Variability Logger screenshot 5 Heart Rate Variability Logger screenshot 6

About this app

Developer Description

The research grade HRV app (requires a Bluetooth sensor!)

Heart Rate Variability Logger lets you record, plot and export time, frequency and non-linear HRV Features (includes experience sampling, RR-interval correction, DFA alpha 1 for training intensity analysis with respect to the aerobic threshold (0.75) in real-time, comparison between recordings, activity monitoring & step counting, location tracking).

Heart Rate Variability Logger requires a Bluetooth Low Energy (also called Bluetooth Smart or BLE or 4.0) heart rate sensor (we recommend Polar H7 or H10)

Main features:
- Extracts, plots, stores and exports heart rate, rr-intervals, time and frequency domain heart rate variability features (AVNN, SDNN, rMSSD, pNN50, LF, HF, LF/HF, alpha 1 from DFA)
- Configurable time window for features computation (choose between 30 seconds, 1, 2 or 5 minutes)
- RR-intervals correction can be enabled to prevent ectopic beats or artifacts from affecting HRV features
- Filters data based on the selected threshold
- Data export using email or Dropbox

More information, here: https://www.hrv.tools/hrv-logger-faq.html

What's New

Minor improvements

Version Information

Version
1.1.4
Downloads
1K+
Updated on
May 2, 2025
Released
Mar 10, 2021
Requires
Android 5.0

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Heart Rate Variability Logger users say on Google Play

★★★★★
Stef Coetzee Stef Coetzee

Update 22Apr2021 - on longer runs (after update today) still only collects first few readings and stops. Otherwise works fine with the Garmin Pro strap alongside logging on the Garmin watch. Great app! Extremely useful for us older runners to gauge LT1 for MAF base building, where typical formulae fall off when trying to compute a target HR. Would like the Alpha1 overlaid on the HR trace, to facilitate understanding of target HR and pace in specific locations on known routes.

7 Apr 22, 2021
★★★★
Bogdan Dumitriu Bogdan Dumitriu

Bug report: after the latest update, the app takes about a minute to start (there's an empty screen for about a minute and then the UI appears).

1 Jul 7, 2022
★★★
Dmitry Molotkov Dmitry Molotkov

Constantly loses connection to hrm when running in background. Polar bear with exact same settings on same phone don't do that. Also real time stamp ( in addition to time from.start of recording) would be good in charts/exports

12 Mar 24, 2021
★★
John L John L

Stopped working all of a sudden after 5-10 good recordings. Uninstalled and reinstalled too

6 Jun 6, 2021
Alex V Alex V

Difficult to use. Not very helpful for training to target heart rate. Save your money. There's no way to get a refund.

1 Nov 24, 2021

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