---
title: "BreathTuner HRV — App Overview"
url: https://marlvel.ai/apps/breathtuner-hrv
category: Health & Fitness
developer: Erwin Gabler
platforms: ios
rating: 4.4 (38 ratings)
pricing: paid
report_level: overview
generated: 2026-04-24
last_verified: "2026-04-24T12:24:14.539Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers a unique value proposition in HRV-based breathing calibration, users report technical challenges with sensor connectivity and limitations in the precision of the practice timer settings.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Health & Fitness |
| Rating | 4.4 ★ (38) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 2.2.3 |
| Developer | Erwin Gabler |

<!-- SECTION: Summary -->
## What is BreathTuner HRV?

BreathTuner HRV is a health and fitness tool designed to help users identify their personal resonance frequency by analyzing the relationship between breathing and heart rate variability (HRV). The app claims to optimize physiological balance by providing data-driven insights that users can apply to breathing exercises and meditation practices. It is notable for its focus on precision-based breathing calibration using external heart rate monitors and mobile sensors.

<!-- SECTION: Key Features -->
## Key Features

- **Resonance Frequency Analysis**: Determines a user's optimal breathing rate by simultaneously analyzing breathing patterns and heart rate variability.
- **Breathe Practice**: Provides a guided breathing pacer to help users practice at their identified optimal frequency.
- **Sensor Integration**: Supports external heart rate monitors to collect precise physiological data during breathing sessions.
- **Narrow Tests**: Allows users to perform specific, focused tests to pinpoint their exact resonance frequency.

<!-- SECTION: Target Audience -->
## Who is it for?

Health-conscious individuals and biohackers looking to optimize their breathing patterns and improve heart rate variability.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/breathtuner-hrv/id1562688066?uo=4)
- [Full Intelligence Report](https://marlvel.ai/apps/breathtuner-hrv)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/breathtuner-hrv).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*