Camera Heart Rate Variability

When trying to export the data via email after selecting email the app closes by itself and I am not able to export the data. Please help.

I get a "HRV not computed due to poor signal quality" with every attempt, no matter what I do. It would help if I had more information about what that message means.

I paid for this and a few months later it just stopped working. I can’t speak to the science behind it but it did work as sold for those months. Low rating is due to how it stopped working and the lack of support to fix. I uninstalled and reinstalled and still not working. Cleaned my camera. Re read directions, googled. Nothing. App developer says we can tweet him, I only use Twitter for work, so. Maybe they will see this and reply? FX.

I have used this twice and now the timer doesn’t start. This is beyond frustrating.

I used this app for the last year and really liked it but in the last month the timer has stopped working so it only tracks number of beats per minute and nothing else. Maybe it needs to be updated to keep up with the iPhone updates?

The new version is a HUGE improvement in signal acquisition. Works much better and has more consistent analysis. I tested this against a laboratory grade HRV instrument and it was quite close. It would be a good app addition for lay people to state “normal” levels and explain the different features and how they impact health and HRV. Would also be nice to choose which studies to graph together to show trend. This is better than most consumer HRV. If you are serious about measuring you HRV and want it to be easy and accurate, you need this. Very reasonable price too.

Used to love this but now every time I measure on my iPhone it crashes

It would be great if it was optimized for iPhone 7+, would be a 5 star if you can make it happen.

I’ve had this app for a couple of years. It never worked from the day I got it, even after multiple updates. I’ve tried it numerous times, and the app hasnever been able to generate an HRV number due to “poor signal quality. “ This is unfortunate, as the companies other app, HRV4Training, is excellent and highly recommended. Use that up with a heart rate monitor and you’re golden. Ignore this app, it’s not worth your time.

I was skeptical to buy after reading the previous reviewers rating. But it actually works quite well. Yes, it takes a little practice and actually requires reading the instructions. But compared to a $150 chest strap monitor, this app is genius. I actually went ahead and then bought the whole package of apps by the developer because I wanted to support a great app!