Heart Rate Variability Logger

30 reviews
Content rating
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About this app

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
Updated on
Apr 21, 2021

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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30 reviews
Jayant Golchha
December 13, 2021
Very useful app, especially the dfa-a1 metric, displayed in real time. Just a few improvements that could make this app even better: - A larger display for the a1 figure, perhaps alongside HR, so that's easier to see - Vibration at each interval - Annoucement of a selected metric via sound / earpiece, instead of having to look at the screen each time.
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Dmitry Molotkov
March 24, 2021
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
8 people found this review helpful
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Stef Coetzee
April 22, 2021
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.
6 people found this review helpful
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What's new

Updated to latest Dropbox API