HRV4Training

Name: HRV4Training
Rating: 3.6 (288 reviews)
Author: A.S.M.A. B.V.

by A.S.M.A. B.V.

iPhone

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: $9.99

Categories and search queries

Official categories

Health & Fitness
Sports

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Family Sharing	Yes	Unknown	App Store	Store published

Screens

No screenshots collected yet.

Pricing & paywalls

App Store

Shown for US

Price: $9.99

Last verified 31 Jul 2026

Ratings & reviews

App Store

Shown for US

3.6 288 ratings · App Store

5/5Supplements Watch Data for Managing Chronic Health Conditions
I supplement my Apple Watch data with this manual HRV reading every morning to monitor my parasympathetic system that's affected by a chronic neurological health condition. I've taken my reading every morning for more than a year under consistent conditions, same finger on the camera at the same time every morning prior to any external stimulants like food, coffee or activity, and I find the reading to be an accurate predictor of how I'm going to feel and fare for the rest of the day (low parasympathetic frequency means my body is struggling.) I've also had times where my HRV reading is super low but I feel fine and I think pffft this thing is off, and then I come down with a virus three days later, proving again that the HRV app knows if I'm sick before I know I'm sick!! I've taken measurements with this app while simultaneously checking heart rate with both an oximeter and my Apple Watch, and HR has been accurate so maybe those reviewers who had accuracy issues had older phones. Even my doctors find this data fascinating, since the correlation to my neurological symptoms has proven time and again to be accurate. Another great tool to have in my health management toolbox!

vuitton.fan · 31 Jul 2026
5/5The best app out there for HRV!
What can I say I’m impressed. I’ve tested and downloaded several other HRV apps but they either required an external or didn’t support the new Apple Watch feature that supports HRV. Even though this app doesn’t support the Apple Watch either, it still offered the ability to use my existing iPhone. Don’t be fooled, the iPhone camera works just as great. I used to use the camera for other things to measure HR and I found it to be just as accurate. The HRV was spot on at least referencing against the Apple Watch readings. As for the app, there are some bugs that I’ve worked with Marco to resolve so while minor he has worked with me. I do acknowledge that most of these HRV apps tend to favor runners, cyclists, or triathletes. Fitness and CrossFit folks are just as interested in peak training. Remember us too! Lastly, the insights are great and this is the kind of easy advice I was looking for. Integration with other apps to include Strava and Training Peaks is a plus. A negative is the inability to get into the weeds with your data or edit but I just found out they have a Coach app that will allow you to do that and I might have to investigate that! Overall very impressed and hope they keep developing this app.

Beekaytab · 31 Jul 2026
5/5It’s not the training it’s the recovery that counts
I’m loving this app!! Deceivingly simple to use. Incredibly useful insights. To get this level of physiological insight for $10 bucks is simply AMAZING. The fact that it can all be done with the phone you already have is downright awesome. Hats off to the developers!! Athletic improvement comes from stressing the body and then allowing the body to recover and adapt. The whole point of training is to give the body the maximum amount of training stress it can recover from before the next workout. But how much is too much? Training and life stress can accumulate in quite unintuitive ways. Especially over time. That’s what this app helps you to understand and it does it with a direct measurement of your particular physiological “state”, and then tracks that over time. I linked it to Strava and Training Peaks (super easy) to pull in workout data and now have a single point of reference for monitoring fatigue. Just great. If you want to optimize your training time and efforts this is absolutely the app to get. Incredible value for the $$.

NYC Techie · 31 Jul 2026
1/5Disappointing $10
They sensor on the Apple watch has been proven to be accurate. (Yet no watch integration) A cardiologist actually laughed at the fact that this app uses a camera. We measured simple heart rate and found this app to be extremely off base. If it uses heart rate as a measurement in the hrv calculations, but it can’t accurately measure that, then how can they claim any accuracy at all? I appreciate the response. Maybe it would be helpful to inform users before they buy the app that to get a true measurement, you need to have a Bluetooth monitor. Also I will add that I did not say anything about the health app measuring hrv. I just said that when i discusses it with my cardiologist, the cardiologist and I checked the heart rate before and after a stress test on my watch and then tried the hrv app with the camera. HRV4Training was very inaccurate. (If I can’t get an accurate bpm from your app (it was generally at least 20 bpm or more off while measuring with optimal connection) then how can it be trusted to measure R-R intervals?

SydneyBristowSuperSpy · 31 Jul 2026
1/5Difficult to use, never seems to work
I have an Apple Watch and use both workouts and the Strava app. I’ve experimented with only using Strava to try and get this app to give any useful data, to no end. Giving up on it. Not user friendly, resulting in no useful data. Point in case - the volume of responses to user complaints in the app reviews. They speak to the flawed app design. It shouldn’t require myriad personalized responses. If the app was clearly designed to communicate intent and method, it would be clear that you need additional equipment, that they’re unable to use the Apple Watch because of API restrictions, and that this requires readings to be done in a specific and consistent way (best I can piece together). The frustration and research necessary to successfully use this tool are simply too high for many users. The developers seem to understand the science they’re working with, but not how to effectively communicate about it.

Nonametuhgf · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Linked to You — App Functionality — Sensitive Info Developer declared
Data Linked to You — Sensitive Info Developer declared
Data Not Linked to You — App Functionality — Contact Info — Email Address Developer declared
Data Not Linked to You — App Functionality — Diagnostics — Crash Data Developer declared
Data Not Linked to You — App Functionality — Health & Fitness — Fitness Developer declared
Data Not Linked to You — App Functionality — Location — Coarse Location Developer declared
Data Not Linked to You — Contact Info Developer declared
Data Not Linked to You — Diagnostics Developer declared
Data Not Linked to You — Health & Fitness Developer declared
Data Not Linked to You — Location Developer declared

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Accessibility

No accessibility labels collected yet.

Versions

App Store

8.3.5
* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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
8.3.6
* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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
8.3.7
* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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
8.3.8
* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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
8.3.9
* Added the option to logout from Dropbox so that you can change account (see Settings) * Resolved an issue that caused the normal range not to be shown correctly under Baseline for Pro users. Try Pro here: https://hrv4training.web.app/ and use code HRV24 for 24% off until end of the week --- 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
8.4.0
* Added the option to logout from Dropbox so that you can change account (see Settings) * Resolved an issue that caused the normal range not to be shown correctly under Baseline for Pro users. Try Pro here: https://hrv4training.web.app --- 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
8.4.1
minor improvements --- 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
8.4.2
minor improvements --- 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
8.4.4
minor improvements --- 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
8.4.5
minor improvements --- 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
8.4.6
minor improvements --- 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
8.4.7
minor improvements --- 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
8.4.8
check out the new HRV4Training Pro at https://hrv4training.web.app/ and use code HRV30 for 30% off --- 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] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.4.9
check out the new HRV4Training Pro at https://hrv4training.web.app/ and use code HRV30 for 30% off 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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.1
check out the new HRV4Training Pro at https://hrv4training.web.app/ and use code HRV30 for 30% off 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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.2
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.3
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.4
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.5
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.6
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.7
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.8
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.5.9
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.6.0
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale
8.6.3 · 25 May 2026
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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale

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Page completeness: Live store listing
Last verified: 31 Jul 2026
Sources: App Store

Independent summary has not been published yet.
Screenshots: not yet collected

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        {
          "rating": 5,
          "title": "Supplements Watch Data for Managing Chronic Health Conditions",
          "body": "I supplement my Apple Watch data with this manual HRV reading every morning to monitor my parasympathetic system that's affected by a chronic neurological health condition. I've taken my reading every morning for more than a year under consistent conditions, same finger on the camera at the same time every morning prior to any external stimulants like food, coffee or activity, and I find the reading to be an accurate predictor of how I'm going to feel and fare for the rest of the day (low parasympathetic frequency means my body is struggling.) I've also had times where my HRV reading is super low but I feel fine and I think pffft this thing is off, and then I come down with a virus three days later, proving again that the HRV app knows if I'm sick before I know I'm sick!! I've taken measurements with this app while simultaneously checking heart rate with both an oximeter and my Apple Watch, and HR has been accurate so maybe those reviewers who had accuracy issues had older phones. Even my doctors find this data fascinating, since the correlation to my neurological symptoms has proven time and again to be accurate. Another great tool to have in my health management toolbox!",
          "author": "vuitton.fan",
          "date": "31 Jul 2026"
        },
        {
          "rating": 5,
          "title": "The best app out there for HRV!",
          "body": "What can I say I’m impressed. I’ve tested and downloaded several other HRV apps but they either required an external or didn’t support the new Apple Watch feature that supports HRV. Even though this app doesn’t support the Apple Watch either, it still offered the ability to use my existing iPhone. Don’t be fooled, the iPhone camera works just as great. I used to use the camera for other things to measure HR and I found it to be just as accurate. The HRV was spot on at least referencing against the Apple Watch readings. As for the app, there are some bugs that I’ve worked with Marco to resolve so while minor he has worked with me. I do acknowledge that most of these HRV apps tend to favor runners, cyclists, or triathletes. Fitness and CrossFit folks are just as interested in peak training. Remember us too! Lastly, the insights are great and this is the kind of easy advice I was looking for. Integration with other apps to include Strava and Training Peaks is a plus. A negative is the inability to get into the weeds with your data or edit but I just found out they have a Coach app that will allow you to do that and I might have to investigate that! Overall very impressed and hope they keep developing this app.",
          "author": "Beekaytab",
          "date": "31 Jul 2026"
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          "rating": 5,
          "title": "It’s not the training it’s the recovery that counts",
          "body": "I’m loving this app!! Deceivingly simple to use. Incredibly useful insights. To get this level of physiological insight for $10 bucks is simply AMAZING. The fact that it can all be done with the phone you already have is downright awesome. Hats off to the developers!! Athletic improvement comes from stressing the body and then allowing the body to recover and adapt. The whole point of training is to give the body the maximum amount of training stress it can recover from before the next workout. But how much is too much? Training and life stress can accumulate in quite unintuitive ways. Especially over time. That’s what this app helps you to understand and it does it with a direct measurement of your particular physiological “state”, and then tracks that over time. I linked it to Strava and Training Peaks (super easy) to pull in workout data and now have a single point of reference for monitoring fatigue. Just great. If you want to optimize your training time and efforts this is absolutely the app to get. Incredible value for the $$.",
          "author": "NYC Techie",
          "date": "31 Jul 2026"
        },
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          "rating": 1,
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          "body": "They sensor on the Apple watch has been proven to be accurate. (Yet no watch integration) A cardiologist actually laughed at the fact that this app uses a camera. We measured simple heart rate and found this app to be extremely off base. If it uses heart rate as a measurement in the hrv calculations, but it can’t accurately measure that, then how can they claim any accuracy at all? I appreciate the response. Maybe it would be helpful to inform users before they buy the app that to get a true measurement, you need to have a Bluetooth monitor. Also I will add that I did not say anything about the health app measuring hrv. I just said that when i discusses it with my cardiologist, the cardiologist and I checked the heart rate before and after a stress test on my watch and then tried the hrv app with the camera. HRV4Training was very inaccurate. (If I can’t get an accurate bpm from your app (it was generally at least 20 bpm or more off while measuring with optimal connection) then how can it be trusted to measure R-R intervals?",
          "author": "SydneyBristowSuperSpy",
          "date": "31 Jul 2026"
        },
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          "rating": 1,
          "title": "Difficult to use, never seems to work",
          "body": "I have an Apple Watch and use both workouts and the Strava app. I’ve experimented with only using Strava to try and get this app to give any useful data, to no end. Giving up on it. Not user friendly, resulting in no useful data. Point in case - the volume of responses to user complaints in the app reviews. They speak to the flawed app design. It shouldn’t require myriad personalized responses. If the app was clearly designed to communicate intent and method, it would be clear that you need additional equipment, that they’re unable to use the Apple Watch because of API restrictions, and that this requires readings to be done in a specific and consistent way (best I can piece together). The frustration and research necessary to successfully use this tool are simply too high for many users. The developers seem to understand the science they’re working with, but not how to effectively communicate about it.",
          "author": "Nonametuhgf",
          "date": "31 Jul 2026"
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      "notes": "* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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"
    },
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      "version": "8.3.6",
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      "notes": "* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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"
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      "version": "8.3.7",
      "released_at": null,
      "notes": "* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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"
    },
    {
      "store": "apple",
      "version": "8.3.8",
      "released_at": null,
      "notes": "* All users can now migrate to the new HRV4Training Pro. Please see how, here: https://marcoaltini.substack.com/p/hrv4training-pro-user-guide and use code SCIENCE for 20% off --- 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"
    },
    {
      "store": "apple",
      "version": "8.3.9",
      "released_at": null,
      "notes": "* Added the option to logout from Dropbox so that you can change account (see Settings) * Resolved an issue that caused the normal range not to be shown correctly under Baseline for Pro users. Try Pro here: https://hrv4training.web.app/ and use code HRV24 for 24% off until end of the week --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.0",
      "released_at": null,
      "notes": "* Added the option to logout from Dropbox so that you can change account (see Settings) * Resolved an issue that caused the normal range not to be shown correctly under Baseline for Pro users. Try Pro here: https://hrv4training.web.app --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.1",
      "released_at": null,
      "notes": "minor improvements --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.2",
      "released_at": null,
      "notes": "minor improvements --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.4",
      "released_at": null,
      "notes": "minor improvements --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.5",
      "released_at": null,
      "notes": "minor improvements --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.6",
      "released_at": null,
      "notes": "minor improvements --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.7",
      "released_at": null,
      "notes": "minor improvements --- 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"
    },
    {
      "store": "apple",
      "version": "8.4.8",
      "released_at": null,
      "notes": "check out the new HRV4Training Pro at https://hrv4training.web.app/ and use code HRV30 for 30% off --- 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] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    },
    {
      "store": "apple",
      "version": "8.4.9",
      "released_at": null,
      "notes": "check out the new HRV4Training Pro at https://hrv4training.web.app/ and use code HRV30 for 30% off 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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    },
    {
      "store": "apple",
      "version": "8.5.1",
      "released_at": null,
      "notes": "check out the new HRV4Training Pro at https://hrv4training.web.app/ and use code HRV30 for 30% off 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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    },
    {
      "store": "apple",
      "version": "8.5.2",
      "released_at": null,
      "notes": "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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    },
    {
      "store": "apple",
      "version": "8.5.3",
      "released_at": null,
      "notes": "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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    },
    {
      "store": "apple",
      "version": "8.5.4",
      "released_at": null,
      "notes": "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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    },
    {
      "store": "apple",
      "version": "8.5.5",
      "released_at": null,
      "notes": "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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    },
    {
      "store": "apple",
      "version": "8.5.6",
      "released_at": null,
      "notes": "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: [email protected] p.s. let us know if you'd like to experiment more. Happy to send you Camera HRV for free. Cheers, Marco & Ale"
    }
  ],
  "alternatives": [],
  "evidence_summary": {
    "index_state": "S1",
    "evidence_level": 1,
    "level_label": "Live store listing",
    "indexable": true,
    "last_verified_at": "2026-07-31",
    "unknown_fields": [
      "Independent summary has not been published yet.",
      "Screenshots: not yet collected"
    ],
    "sources": [
      "App Store"
    ]
  },
  "availability_markets": {
    "live": [
      "us"
    ],
    "selected": "es",
    "note": "No LIVE observation for ES yet."
  },
  "feature_events": {
    "events": []
  },
  "features_slice": {
    "plans": [],
    "features": [],
    "unknown_features": [
      "family_sharing"
    ],
    "data_cutoff": "31 Jul 2026"
  }
}