Comparison

Heart Rate Variability Logger vs AGILITON

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Heart Rate Variability Logger

This app records, plots, and exports heart rate variability data, including time, frequency, and non-linear features. It supports experience sampling, RR-interval correction, and activity/location tracking. Requires a compatible Bluetooth heart rate sensor.

Highlights
  • Record and plot HRV data
  • Extract time and frequency domain features
  • Experience sampling for event annotation
  • Compare multiple recordings
  • Activity and location tracking
  • RR-interval correction
  • Export data for Kubios
Features
Read full description

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.

About

AGILITON

Features
Read full description

FTMS Protocol Support Compatible via Bluetooth with a wide range of smart trainers, including but not limited to Wahoo, TACX, ELITE, JETBLACK, and AGILITON. Precision ERG Control: Let the app take command of your AGILITON trainer's resistance. Our high-fidelity ERG mode ensures you hit your target power intervals with laboratory-grade accuracy. Scientific Performance Suite: We analyze raw data from your trainer to provide elite-level metrics: TSS, CTL, ATL, and TSB. No more guessing—manage your training load like a pro. FTP & Rider Phenotyping: Built-in protocols designed to calibrate your AGILITON trainer's intensity based on your Functional Threshold Power and unique rider profile. Smart Training Calendar: Schedule your season and follow structured courses tailored for the AGILITON indoor experience.

Screenshots

Heart Rate Variability Logger4 screens
AGILITON4 screens

Verdict

The call

The clearest difference is price: AGILITON at Free against Heart Rate Variability Logger's $9.99. Heart Rate Variability Logger's advantage is update cadence (fortnightly vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

AGILITON is free to download; Heart Rate Variability Logger costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Heart Rate Variability Logger ships an update fortnightly, AGILITON every 3 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Heart Rate Variability Logger versus AGILITON: the parameters behind the verdict, then further details
ParameterHeart Rate Variability LoggerAGILITON
Price$9.99Free — better
Rating3.5 (19 ratings) — better—
Positive reviews43.1% of reviews—
Number of ratings19 — better—
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size10 MB38 MB
Age rating4+17+
DeveloperA.S.M.A. B.V.Agiliton (Shanghai) Technology Co., Ltd

In-app purchases

None

Heart Rate Variability Logger

No in-app purchases

None

AGILITON

No in-app purchases

Questions

Is Heart Rate Variability Logger free?
Heart Rate Variability Logger costs $9.99, with no in-app purchases.
Is AGILITON free?
AGILITON is free to download, with no in-app purchases.
Do Heart Rate Variability Logger or AGILITON have ads?
Neither Heart Rate Variability Logger nor AGILITON shows ads.
Which is updated more often, Heart Rate Variability Logger or AGILITON?
Heart Rate Variability Logger ships an update fortnightly, and AGILITON every 3 months. Most recently, Heart Rate Variability Logger was updated on November 1, 2026 and AGILITON on October 24, 2026.

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