# SelfLoops HRV — measure heart rate variability

> Professional-grade app for measuring and analyzing heart rate variability (HRV). (iPhone/iPad app by SELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIERO.)

- Source: https://appshunter.io/ios/app/selfloops-hrv/id921130546 (this page in markdown: same URL + `.md`)
- Developer: [SELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIERO](https://appshunter.io/developer/911739721)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 6 MB
- Languages: English, French, German, Italian, Portuguese, Russian, Chinese, Spanish, Ukrainian
- Released: 2014-10-05
- Data updated: 2026-06-05
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/selfloops-hrv/id921130546/reviews.md

## What is SelfLoops HRV?

SELFLOOPS HRV – Recovery, Readiness & Performance

SELFLOOPS HRV is a professional-grade app to measure and analyze heart rate variability (HRV)—trusted by pro athletes, coaches, and researchers to track recovery, stress, fatigue, and training readiness.

Using precise beat-to-beat (R-R interval) data from Bluetooth heart rate monitors, SELFLOOPS delivers highly accurate HRV insights used in sports science and performance optimization.


Why track HRV?

Heart Rate Variability (HRV) measures the variation between heartbeats and is one of the most reliable indicators of:
	1. Recovery status
	2. Training readiness
	3. Stress and fatigue
	4. Nervous system balance
	5. Long-term performance

Track your HRV daily to understand when to push harder or recover, reduce the risk of overtraining, and improve performance over time.


Advanced HRV Analysis

SELFLOOPS HRV provides the key metrics used in elite sports and scientific research:
	1. RMSSD
	2. ln(RMSSD) (HRV Score)
	3. SDNN
	4. pNN50
	5. AVNN

Key Features
	1. Accurate HRV measurement from beat-to-beat data
	2. Daily recovery & readiness tracking
	3. Clear trends to monitor progress over time
	4. Fast, simple, and intuitive interface
	5. Compatible with leading Bluetooth heart rate monitors
	6. Used in endurance, strength training, cycling, running, and fitness


Device Compatibility

Requires a Bluetooth Low Energy (BLE) heart rate monitor.

For best accuracy, use a chest strap that supports R-R interval data.
Not all heart rate monitors provide this data.


Connection Tips

If your sensor does not connect:
	1. Make sure it is not connected to another app or device
	2. Do not pair it directly in iOS Settings


Disclaimer

SELFLOOPS HRV is not a medical app and does not provide medical advice.
Consult a qualified healthcare professional for any health-related decisions.

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/selfloops-hrv/id921130546/reviews.md

### 5/5 — Lange gesucht…..

*2024-04-25, version 2.7*

….endlich gefunden! Diese tolle App ist schlicht aufgebaut, zeigt nichts überflüssiges an und ermöglicht so ein wunderbares Training für Herzkohärentes Atmen! Einfach Klasse!

### 5/5 — simple, clean

*2021-02-14*

nice appl, simple and clean interface, though the route to settings and getting to historic results is a bit odd.

if the results where sent to apple healthkit hrv and resting heartrate, rather than storing the  health data in the app itself  - it would be perfect!

**Developer response:** thank you for the feedback

### 3/5 — Great App - but

*2015-11-21, version 1.3*

Great App with a lot of potential - even for research purposes.
The main issue is that the vertical axes for HR and RR are not scalable. The RR scale ends at 1300 ms. If you have a low resting HR (like me) with RRs above 1300 ms, the RRs will not displayed.

### 5/5 — Well done app

*2014-11-18*

Can you make a pebble app or add a companion pebble watchface to this one? I'm sure you are already thinking of the apple watch as well.

## Frequently asked questions about SelfLoops HRV

### What is SelfLoops HRV used for?

SelfLoops HRV is used to measure and analyze heart rate variability (HRV). This helps users track their recovery status, training readiness, stress, and fatigue levels to optimize performance.

### What devices are compatible with SelfLoops HRV?

SelfLoops HRV is compatible with iPhones and iPads. It requires a Bluetooth Low Energy (BLE) heart rate monitor, preferably a chest strap that supports R-R interval data for best accuracy.

### What are the key HRV metrics provided by SelfLoops HRV?

SelfLoops HRV provides advanced metrics used in elite sports and scientific research, including RMSSD, ln(RMSSD) (HRV Score), SDNN, pNN50, and AVNN.

### Is SelfLoops HRV a medical app?

No, SelfLoops HRV is not a medical app and does not provide medical advice. It is intended for performance optimization and health tracking, not for diagnosing or treating medical conditions.

### How accurate is SelfLoops HRV?

The app is designed for professional-grade accuracy, utilizing precise beat-to-beat (R-R interval) data from compatible Bluetooth heart rate monitors. For the best results, a chest strap supporting R-R interval data is recommended.

### How often is SelfLoops HRV updated?

The latest version, 3.2, was last updated on March 26, 2026. This indicates a commitment to ongoing development and improvements for the app.

### What is the user rating for SelfLoops HRV?

SelfLoops HRV has a very high user rating of 5.0 stars based on 2 ratings, suggesting strong user satisfaction with its features and performance.

### Does SelfLoops HRV have ads?

No, SelfLoops HRV does not contain advertisements. This provides an uninterrupted user experience focused on data analysis and performance tracking.

## Version history (last 5 releases)

### 3.4 — 2026-05-25

Performance improvements and refinements throughout the app experience.

### 3.3 — 2026-04-06

minor refinements

### 3.2 — 2026-03-26

Enhanced trend detection for more accurate, reliable, and actionable insights.

### 3.1 — 2026-03-18

More accurate HRV insights with improved analysis and advanced error correction

### 3.0 — 2026-03-12

A new redesigned user interface plus other minor refinements and bugs corrections.

## More apps by SELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIERO

- [SelfLoops Group Fitness Plus](https://appshunter.io/ios/app/selfloops-group-fitness-plus/id1016376205)
- [Selfloops Fitness](https://appshunter.io/ios/app/selfloops-fitness/id1214596233)
- [SelfLoops Group Fitness TV](https://appshunter.io/ios/app/selfloops-group-fitness-tv/id1282967090)
- [Selfloops Spark](https://appshunter.io/ios/app/selfloops-spark/id1282997660)

All apps by SELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIERO: https://appshunter.io/developer/911739721

## Related topics

[optimal hrv](https://appshunter.io/ios/topics/optimal-hrv)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*