Version history
HRV4Biofeedback
43
ASO score
Text
56/100
Reviews
0/100
Graphic
60/100
Other
0/100
App Rating
4.2
Votes
87
App Age
8y 6m
Last Update
Sep 22, 2025
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
4.2
|
4.69
|
-10%
|
|
Number of Ratings (Voted)
|
87
|
812.2K
|
-100%
|
|
App Age
|
8y 5m
|
8y 7m
|
-1%
|
|
Price
|
$10
|
$0
|
|
|
In-app Purchases Price
|
$0
|
$48
|
|
|
Update Frequency
|
119d
|
27d
|
+339%
|
|
Title Length
|
15
|
26
|
-42%
|
|
Subtitle Length
|
28
|
28
|
|
|
Description Length
|
2 857
|
3 243
|
-12%
|
|
Number of Screenshots
|
1170
|
1418
|
-17
%
|
|
Size
|
137MB
|
346MB
|
-60
%
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 05, 2025 | Dec 12, 2025 |
|---|---|---|
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21
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| Top | Dec 05, 2025 | Dec 12, 2025 |
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21
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| Top | Dec 05, 2025 | Dec 12, 2025 |
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No results were found!
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| Top | Dec 05, 2025 | Dec 12, 2025 |
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No results were found!
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Ranking Keywords in United States
| Keywords | App Rank |
|---|
Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
15
of 30
)
HRV4Biofeedback
Subtitle
(
Characters:
28
of 30
)
Camera-based biofeedback app
Description
(
Characters:
2857
of 4000
)
Improve self-regulation and better cope with stress using HRV4Biofeedback, the camera-based Heart Rate Variability (HRV) Biofeedback app
APP FEATURES:
> camera-based biofeedback measurement showing real-time heart rate
> spot check measurements at rest
> frequency power spectrum
> biofeedback score to quantify the effectiveness of the practice in terms of deep breathing and duration
> resonant frequency analysis to determine the optimal breathing rate for your sessions
> semi-real time HRV analysis
> alternative manual breathing rate configuration between 4.5 and 8.5 breaths / minute
> subjective annotations, including up to 5 personalized questions
> current streak
> explore correlations between subjective annotations and biofeedback data
> Integration with HealthKit (you can write heart rate, HRV and Mindful minutes)
> weekly and monthly summaries
> support for Bluetooth sensors
> background nature sounds
> vibration to guide you through the practice
WHAT'S BIOFEEDBACK?
Heart Rate Variability (HRV) Biofeedback is a technique that can directly affect physiological and psychological factors through deep breathing exercises and is an ideal strategy to help us self-regulate and better cope with stressful situations
Practically speaking, HRV Biofeedback consists of providing an individual with real-time feedback on instantaneous heart rate and respiration changes while being instructed to breathe at low frequencies
You can learn more about the psychological and physiological benefits of deep breathing and HRV Biofeedback, at HRV4Biofeedback.com
HOW CAN I BENEFIT FROM BIOFEEDBACK?
Life can be demanding, from both a physical and psychological point of view
Our health and performance can be affected by how we are able to effectively cope with stressful situations and deal with anxiety, or in broader terms, our ability to emotionally self-regulate is key
The goal of HRV Biofeedback is to improve self-regulation, therefore impacting positively our health and performance
LEARN MORE:
- App features: https://www.hrv4biofeedback.com/faq.html
- An introduction to biofeedback: https://www.hrv4biofeedback.com/blog/a-primer-on-heart-rate-variability-biofeedback
- How to use the camera measurement: https://www.hrv4biofeedback.com/blog/guidelines-and-best-practices-for-camera-based-measurements
Supported devices for the camera measurement: iPhones 8 and onwards
HRV4Biofeedback requires to register an account with your email address, so that your data can be backed up safely and retrieved in case anything happens (app issue, changing phone, etc.)
The validation of the camera-based heart rate measurement is available here: https://www.researchgate.net/publication/315059917_Comparison_of_Heart_Rate_Variability_Recording_With_Smart_Phone_Photoplethysmographic_Polar_H7_Chest_Strap_and_Electrocardiogram_Methods
}
Read more
Other
Additional Information
| Rating: | |
| Voted: | 87 |
| App Store Link: | |
| Price: | 9.99 $ |
| Website: | |
| Email: | - |
| Privacy Policy: | |
| Categories: | Health & Fitness, Lifestyle |
| Size: | 137MB |
| App Age: | 8 years 6 months |
| Release Date: | Jun 23, 2017 |
| Last Update: | Sep 22, 2025 |
| Version: | 1.4.2 |
Version history
1.4.2
Sep 22, 2025
Added Box Breathing. You can find additional articles and resources, here: https://marcoaltini.substack.com
---
If you like the updates, please take a few minutes to the review the app. It makes a difference. Thanks!
For any issues, or quick questions contact: hello@HRV4Training.com
Cheers,
Marco & Ale
1.4.1
Jul 06, 2025
Minor fixes.
You can find additional articles and resources, here: https://marcoaltini.substack.com
---
If you like the updates, please take a few minutes to the review the app. It makes a difference. Thanks!
For any issues, or quick questions contact: hello@HRV4Training.com
Cheers,
Marco & Ale