# RHz Biofeedback

> Find your resonance frequency. Optimize HRV & recovery w/ precision biofeedback.

Canonical page: [https://chrome-stats.com/d/com.rhz.biofeedback](https://chrome-stats.com/d/com.rhz.biofeedback)

## Overview

- **ID:** `com.rhz.biofeedback`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** victorinoxs
- **Category:** HEALTH\_AND\_FITNESS
- **Downloads:** 130
- **Version:** 1.3.5
- **Last updated:** 2026-06-29
- **First published:** 2026-03-26
- **Publisher country:** CA
- **Size:** 21 MB
- **Data as of:** 2026-09-14
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.rhz.biofeedback)
- **Website:** [https://rhz.logic-and-light.com/](https://rhz.logic-and-light.com/)
- **Privacy policy:** [https://rhz.logic-and-light.com/privacy](https://rhz.logic-and-light.com/privacy)

## Description

Find the breathing rate that works best for your body.<br><br>Most breathing apps use a generic pace like 6 breaths per minute. RHz helps you discover your personal resonance frequency using real HRV biofeedback.<br><br>RHz is an Android app for resonance breathing and HRV training. Connect a compatible Bluetooth heart rate monitor, run a guided sweep, and practice at the breathing pace where your HRV response is strongest.<br><br>WHAT YOU CAN DO<br><br>• Find your personal resonance frequency<br>• Run guided full or quick sweeps<br>• Use adaptive mode during practice<br>• View live RMSSD, SDNN, and beat-to-beat data<br>• Track session history and trends<br>• Keep all data stored locally on your device<br><br>WHY PEOPLE USE RHZ<br><br>• More precise than fixed breathing timers<br>• Built for real HRV biofeedback practice<br>• Useful for recovery, stress regulation, and breathing training<br>• No account, no cloud, no biometric data upload<br><br>HARDWARE REQUIRED<br><br>RHz requires a compatible Bluetooth heart rate monitor.<br><br>Recommended:<br>• Polar H10 and other ECG chest straps for best HRV accuracy<br><br>Also supported:<br>• Whoop 5.0 and other high-quality PPG sensors<br><br>Some smartwatches may connect over Bluetooth, but HRV quality can vary by device.<br><br>RHz is a wellness app for breathing practice and HRV biofeedback. It is not intended to diagnose, treat, cure, or prevent any medical condition.

## Rankings

- #1,879,999 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.INTERNET`
- `android.permission.VIBRATE`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.rhz.biofeedback.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.rhz.biofeedback)