What's New

minor improvements

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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: [email protected] or use @altini_marco on Twitter

p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free.

Cheers,
Marco & Ale

App Description

The first scientifically validated Heart Rate Variability (HRV) app. HRV4Training provides HRV based insights to help you quantify stress,
better balance training and lifestyle, and improve performance. HRV4Training does not require a heart rate monitor, since it can accurately assess your HRV using the phone's camera.

HRV4Training also works with Apple Watch, the Oura ring and all compatible Bluetooth SMART sensors.

HRV4Training is also the first app that goes beyond simple measurements and provides insights on:
1) acute or day to day HRV changes in response to different stressors (alcohol, travel, sick days, training, menstruation, etc.)
2) long term multi-parameter trends to look at the big picture
3) correlations between physiological measurements and annotations
4) training load analysis, fitness, fatigue, readiness to perform and injury risk
5) VO2max estimation for runners linking the app to Strava or TrainingPeaks and using a heart rate monitor during their workouts
6) Training Polarization analysis (or 80/20)
7) Lactate Threshold Estimation for runners linking the app to Strava or TrainingPeaks and using a heart rate monitor during their workouts
8) Weekly and monthly summaries to track progress.

All data is processed inside the app in order to provide you with actionable interpretations that can help optimizing your training plan and performance.

Supported devices for the camera measurement: iPhones 5, 5S, 6, 6S, 6+, 6S+, SE, 7, 7+, 8, 8+, X, XS, XS Max, XR, 11, 11 Pro, 11 Pro Max, 12 mini, 12, 12 Pro, 12 Pro Max, 13 mini, 13, 13 Pro, 13 Pro Max, 14, 14 Plus, 14 Max, 14 Pro, 15, 15 Max, 15 Pro

Currently unsupported devices for the camera measurement: iPhones 4S, iPads and iPods - These devices require a chest strap.

Other features:
- HRV-based advice helps you to adapt your trainings based on objective measures of recovery
- TAGS: lets you tag your sleep, mental energy, muscle fatigue, stress and all other parameters that can help you understand what is influencing your physical condition and physiological stress
- Works with Bluetooth SMART heart rate monitors (a Polar H7 is recommended) or simply your phone's Camera
- Integrates with the Health app (writes heart rate, and sleep, read sleep time)
- Configurable test (single or orthostatic, choose test duration between 1, 3 or 5 minutes)
- Extracts and stores the following features while lying down and/or standing: heart rate, mean of beat-to-beat intervals (AVNN), standard deviation of beat-to-beat intervals (SDNN), square root of the mean squared difference of successive R-Rs (rMSSD), number of pairs of successive R-Rs that differ by more than 50 ms (pNN50), low frequency power (LF, 0.04-0.15 Hz), high frequency power (HF, 0.15-0.40 Hz)
- Shows the PPG signal view to ensure signal quality during the test if the camera is used instead of a bluetooth SMART sensor
- HRV4T Recovery Points to provide a single, straightforward metric to analyze your physical condition
- Population summaries and people like you comparisons to put your data into perspective
- Analysis of compliance and consistency
- Data export via email or Dropbox
- Integrates with TrainingPeaks, Oura, Strava and Coros

HRV4Training 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.).

iPhone Screenshots

(click to enlarge)

HRV4Training screenshot 1 HRV4Training screenshot 2 HRV4Training screenshot 3 HRV4Training screenshot 4 HRV4Training screenshot 5

App Changes

  • August 15, 2013 Initial release
  • August 25, 2013 New version 1.2
  • September 21, 2013 New version 1.4
  • October 11, 2013 New version 1.6
  • October 11, 2013 Price increase: $2.99 -> $3.99
  • October 18, 2013 New version 1.8
  • November 21, 2013 New version 2.0
  • December 18, 2013 New version 3.0
  • December 21, 2013 Price increase: $3.99 -> $4.99
  • January 03, 2014 Price decrease: $4.99 -> $3.99
  • January 08, 2014 New version 3.2
  • January 23, 2014 New version 3.3
  • January 29, 2014 New version 3.4
  • February 11, 2014 New version 4.0
  • February 15, 2014 New version 4.2
  • February 20, 2014 New version 4.2.2
  • February 26, 2014 New version 4.2.4
  • May 15, 2014 New version 4.4
  • May 19, 2014 New version 4.6
  • May 22, 2014 New version 4.6.2
  • May 24, 2014 New version 4.6.4
  • May 30, 2014 New version 4.6.6
  • June 06, 2014 New version 4.6.8
  • June 08, 2014 New version 4.7.0
  • July 14, 2014 New version 4.7.2
  • July 20, 2014 New version 4.7.4
  • August 27, 2014 New version 4.7.6
  • August 30, 2014 New version 4.7.8
  • September 05, 2014 New version 4.7.9
  • February 03, 2015 New version 4.8.0
  • February 25, 2015 New version 4.8.2
  • April 29, 2015 New version 4.8.4
  • May 06, 2015 New version 4.9.1
  • May 10, 2015 Price increase: $3.99 -> $4.99
  • May 14, 2015 New version 4.9.2
  • June 03, 2015 New version 4.9.3
  • June 14, 2015 New version 4.9.4
  • June 24, 2015 New version 4.9.5
  • July 02, 2015 New version 4.9.6
  • July 20, 2015 Price decrease: $4.99 -> $3.99
  • August 02, 2015 New version 4.9.7
  • August 13, 2015 New version 4.9.8
  • August 28, 2015 New version 4.9.9
  • August 29, 2015 New version 5.0.0
  • September 02, 2015 New version 5.0.2
  • September 03, 2015 New version 5.0.4
  • September 09, 2015 New version 5.0.6
  • September 13, 2015 New version 5.0.8
  • September 13, 2015 Price increase: $3.99 -> $4.99
  • September 15, 2015 New version 5.1.2
  • September 19, 2015 New version 5.1.4
  • September 23, 2015 New version 5.1.6
  • September 29, 2015 New version 5.1.7
  • October 09, 2015 New version 5.1.8
  • October 17, 2015 New version 5.2.0
  • October 21, 2015 New version 5.2.2
  • October 24, 2015 New version 5.2.4
  • October 27, 2015 New version 5.2.6
  • November 04, 2015 New version 5.3.0
  • November 14, 2015 New version 5.3.2
  • November 18, 2015 New version 5.3.4
  • December 05, 2015 New version 6.0
  • December 07, 2015 Price increase: $4.99 -> $5.99
  • December 08, 2015 New version 6.0.2
  • December 15, 2015 New version 6.0.4
  • January 05, 2016 Price increase: $5.99 -> $6.99
  • January 09, 2016 New version 6.0.6
  • January 16, 2016 New version 6.0.7
  • January 19, 2016 Price increase: $6.99 -> $7.99
  • January 20, 2016 New version 6.0.8
  • January 24, 2016 New version 6.0.9
  • January 26, 2016 New version 6.1.0
  • January 27, 2016 New version 6.1.2
  • January 29, 2016 New version 6.1.4
  • February 14, 2016 New version 6.1.6
  • February 19, 2016 New version 6.1.7
  • February 23, 2016 New version 6.1.8
  • March 01, 2016 New version 6.2.0
  • March 09, 2016 New version 6.2.2
  • March 13, 2016 New version 6.2.4
  • March 23, 2016 New version 6.2.6
  • June 23, 2016 New version 6.4.2
  • June 23, 2016 Price increase: $7.99 -> $8.99
  • June 30, 2016 New version 6.4.3
  • July 11, 2016 New version 6.4.4
  • July 19, 2016 New version 6.4.5
  • July 24, 2016 New version 6.4.6
  • August 13, 2016 New version 6.4.7
  • November 06, 2016 New version 6.5.9
  • November 07, 2016 New version 6.6.0
  • November 16, 2016 New version 6.6.1
  • November 17, 2016 New version 6.6.2
  • November 19, 2016 New version 6.6.3
  • December 04, 2016 New version 6.6.4
  • December 06, 2016 New version 6.6.5
  • December 13, 2016 New version 6.6.6
  • December 20, 2016 New version 6.6.7
  • December 28, 2016 Price increase: $8.99 -> $9.99
  • January 04, 2017 New version 6.6.8
  • June 13, 2019 New version 7.4.2
  • August 16, 2019 New version 7.4.3
  • August 28, 2019 New version 7.4.7
  • September 11, 2019 New version 7.4.9
  • September 24, 2019 New version 7.5.0
  • September 27, 2019 New version 7.5.1
  • November 11, 2019 New version 7.5.2
  • December 10, 2019 New version 7.5.4
  • December 17, 2019 New version 7.5.5
  • December 24, 2019 New version 7.5.6
  • January 07, 2020 New version 7.5.9
  • January 14, 2020 New version 7.6.0
  • July 14, 2020 New version 7.6.8
  • October 23, 2020 New version 7.7.2
  • December 09, 2020 New version 7.7.4
  • August 05, 2021 New version 7.9.4
  • October 15, 2021 New version 7.9.6
  • September 16, 2023 New version 8.3.0
  • November 03, 2023 New version 8.3.2
  • November 15, 2023 New version 8.3.3
  • April 25, 2024 New version 8.4.7

Other Apps From A.S.M.A. B.V.

Heart Rate Variability Logger Camera Heart Rate Variability Stressed Out StayFit app HRV4Training Coach HRV4Biofeedback Camera Heart Rate