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HRV Biofeedback 1.0.0

21.8 MB / 10+ Downloads / Rating 1.9 - 22 reviews


See previous versions

HRV Biofeedback, developed and published by Joachim Nohl, has released its latest version, 1.0.0, on 2023-11-30. This app falls under the Health & Fitness category on the Google Play Store and has achieved over 1000 installs. It currently holds an overall rating of 1.9, based on 22 reviews.

HRV Biofeedback APK available on this page is compatible with all Android devices that meet the required specifications (Android 5.0+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

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App Screenshot

App Screenshot

App Details

Package name: com.achimsapps.hrv

Updated: 1 year ago

Developer Name: Joachim Nohl

Category: Health & Fitness

New features: Show more

App Permissions: Show more

Installation Instructions

This article outlines two straightforward methods for installing HRV Biofeedback on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

App Rating

1.9
Total 22 reviews

Reviews

4 ★, on 2021-01-17
Love the simple design and functionality. Only problem is that it much more often fails to measure my finger as other apps with similar hrv camera functionality, and the estimated heart rate is way too high probably as a result of this (not sure about hrv as I can't measure it simultaneously otherwise).. which unfortunately makes the app useless for me at this point.

1 ★, on 2020-09-28
Does not work. You get stuck on a balloon page. Hr or HRV are not right. Edit for comment: swipe did not work. I had to force stop the app

1 ★, on 2021-01-25
Doesn't work

Previous Versions

HRV Biofeedback 1.0.0
2023-11-30 / 21.8 MB / Android 5.0+

HRV Biofeedback 1.0.0
2023-12-08 / 42.7 MB / Android 6.0+

HRV Biofeedback 1.0.0
2024-12-26 / 15.3 MB / Android 6.0+

About this app

This app uses the camera to measure your heart rate and calculates your heart rate variability.

HRV is an index of activity of the autonomic (vegetative) nervous system.

The higher your HRV, the higher the balloon will fly (biofeedback).

Focus on your vivid heart (and calm breathing) and get an idea what helps you calming down (what makes the balloon rise).

The measurement quality highly depends on correct usage (your finger should be placed in a way that the camera can clearly see your blood flow and you should limit the movement of the measured finger as good as you can).

Measuring the HRV right after physical activity is not the purpose, as the HRV has a different meaning for higher heart rates.

The area around the camera will get warm during measurements. That's normal.

Heart rate variability (HRV) is calculated the following way:
Imaging of bloodflow in your finger is used to create a photoplethysmogram (PPG). With the PPG it then calculates the interbeat interval (IBI), resulting in your heart rate (BPM), and - through filtering of artifacts and more calculations - the 'root mean square of successive differences' (RMSSD). While the HRV itself is not clearly defined as one unit and can be calculated in different ways, the RMSSD is the most common method.

Disclaimer:
This is not a medical app!
If you have any medical problems, please consult a medical practitioner and don't make any decisions based on the measurements of this app.

New features

If you're reading this, release your shoulders from your ears, unclench your jaw and remove your tongue from the roof of your mouth. We physically tend to hold on to stress in least noticeable ways. Relax.

Sorry if the measurement does not work as expected. It highly depends on the camera input - how you place the finger, how calm you remain and unfortunately also on your device (distance between flash and camera etc.).

App Permissions

Required to be able to access the camera device.
Allows an application to record audio.
Allows access to the vibrator.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to write to external storage.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows an application to read from external storage.
Allows applications to access information about networks.