Heart Rate Variability Logger
iOS app for tracking heart rate variability (HRV) with contextual logging, trend charts, and data export.
About this Tool
iOS app for tracking heart rate variability (HRV) with contextual logging, trend charts, and data export.
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 aerobic threshold estimation 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 experience sampling for events annotation
- Comparison between up to 3 recordings lets you get a better understanding of differences in HRV under different contexts in a glance. The comparison modality includes also Outlier removal
- Activity tracking: step counter or accelerometer derived motion intensity for user context (step counter only for iPhones 5S)
- Location tracking, either using GSM/WiFi networks (low battery consumption) or GPS (high accuracy)
- 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
- export for Kubios
- Filters data based on the selected threshold
- Shows HR in the app icon
- Data export using iTunes or Dropbox
- Tested for recordings longer than 24 hours
Please note that continued use of GPS running in the background can dramatically decrease battery life.
Pros & Cons
✓ Pros
- ✓Simple and focused HRV tracking
- ✓Contextual logging for lifestyle factors
- ✓Data export for professional review
✗ Cons
- ✗iOS only, no Android or web version
- ✗No AI-powered insights or recommendations
- ✗Limited integration with third-party platforms
Key Features
Manual and wearable HRV data logging
Contextual tags for mood, sleep, exercise, and lifestyle factors
Trend charts and historical HRV analysis
Data export for sharing with healthcare providers or coaches
Support for compatible heart rate monitors and wearables
Daily, weekly, and monthly HRV trend views
Simple, focused interface for quick data entry
Personalized tracking without requiring a subscription
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Frequently Asked Questions
Heart Rate Variability Logger is available as $9.99. Visit the tool's website for the latest pricing details and plan options.
Visit the Heart Rate Variability Logger website to check whether a free tier or free trial is available.
Heart Rate Variability Logger is available on iOS. Check the official website for the latest platform support.
Many tools offer free trials to let you test before subscribing. Check the Heart Rate Variability Logger website for current trial availability and duration.
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