# Heart Rate Variability Logger vs SelfLoops HRV

The clearest difference is price: SelfLoops HRV at Free against Heart Rate Variability Logger's $9.99. SelfLoops HRV also leads on rating (5.0 vs 3.5) and review sentiment (75% vs 44%). Heart Rate Variability Logger's advantage is in-app purchases (none vs 1) and update cadence (every 10 days vs every 4 months). On ads and device support there is nothing between them.

SelfLoops HRV is free to download; Heart Rate Variability Logger costs $9.99 up front. SelfLoops HRV sells 1 one-off in-app purchase. Heart Rate Variability Logger asks for nothing beyond the download.

SelfLoops HRV holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Heart Rate Variability Logger has 19 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 44% of Heart Rate Variability Logger's written reviews are positive against 75% of SelfLoops HRV's.

Heart Rate Variability Logger ships an update every 10 days, SelfLoops HRV every 4 months. The most recent releases landed on September 28, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Heart Rate Variability Logger | SelfLoops HRV |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.5 (19 ratings)](https://appshunter.io/ios/app/heart-rate-variability-logger/id683984776/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/selfloops-hrv/id921130546/reviews)** |
| Number of ratings | **19** | 2 |
| Positive reviews | 43.9% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#103** | — |
| Size | 11 MB | 6 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [A.S.M.A. B.V.](https://appshunter.io/developer/1066843463) | [SELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIERO](https://appshunter.io/developer/911739721) |

## What reviewers say

### Heart Rate Variability Logger

[App page](https://appshunter.io/ios/app/heart-rate-variability-logger/id683984776)

**Currently charting:** #103 Top Paid · Health & Fitness (US App Store)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### SelfLoops HRV

[App page](https://appshunter.io/ios/app/selfloops-hrv/id921130546)

This app measures and analyzes heart rate variability (HRV) using Bluetooth heart rate monitors. It helps users track recovery, stress, and training readiness to optimize performance. Advanced metrics are provided for sports science and research applications.

**Highlights:** Accurate HRV measurement, Daily recovery & readiness tracking, Clear trend monitoring, Intuitive interface, Bluetooth heart rate monitor compatible, Sports science metrics

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HRV premium | $3.99 | one-time |


## Frequently asked questions

### Is Heart Rate Variability Logger free?

Heart Rate Variability Logger costs $9.99, with no in-app purchases.

### Is SelfLoops HRV free?

SelfLoops HRV is free to download, with in-app purchases available.

### Which has better reviews, Heart Rate Variability Logger or SelfLoops HRV?

SelfLoops HRV is rated higher. Heart Rate Variability Logger averages 3.5 out of 5 from 19 ratings, while SelfLoops HRV averages 5.0 from 2 ratings.

### Do Heart Rate Variability Logger or SelfLoops HRV have ads?

Neither Heart Rate Variability Logger nor SelfLoops HRV shows ads.

### Which is updated more often, Heart Rate Variability Logger or SelfLoops HRV?

Heart Rate Variability Logger ships an update every 10 days, and SelfLoops HRV every 4 months. Most recently, Heart Rate Variability Logger was updated on September 28, 2026 and SelfLoops HRV on June 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*