The developer has done a good thing. Accuracy seems close enough for home use. I see added features in the future. Only camera and built-in light is needed to measure purse. As graph is generated anomalies in an otherwise smooth repeating pulse pattern could give additional information on your heart from the pulse rhythm. No medical inference can be made but may give valuable talking points with a medically trained specialist.

I’d give this app a 5 star ⭐️ except I can’t change the day/month/year order into just that: first the day, then the month, then the year. My cardiologist was impressed when I showed him the app. He said I’d pay a couple hundred dollars for the same data at a hospital. Then his nurse gave me an EKG and we looked at the difference. Very interesting. Warning: Don’t even think this app is a mini EKG machine, or any other professional medical apparatus. It’s not. Do not use this app in that way. That’s dangerous. If you want an EKG go get one done by a qualified health professional. Additionally, just because my cardiologist was impressed other cardiologists may think differently. Seek qualified professional care. No DIY allowed.

Resting heart rate seemed believable although it jumps all over the place while taking reading. Active rate is way off. Immediately after a run it showed 91, then I checked manually and it was 110. My pulse drops quickly after finishing an activity so I wanted something to get a reading faster then palpating. This gives you a value fairly quickly but it always reads low and varies wildly. At the gym this always reads 10-30 bpm slower than the monitors on the machines.I paid to have ads removed after getting a few believable resting heart rates, before checking it during and after activity. For anything other than sitting still on the couch it is worthless, and now I doubt the resting heart rate as well.

The Pro version could be better (more options) since you’re paying for it. It’s hard to get the reading to begin on the iPhone 13 because you have to figure out how to place your finger each time. There is no option to change the duration of how long it takes. I would like the option to be able to have it run a full minute and up to 3 minutes. Once the app finally likes your finger placement, it sends to work fine. My first reading was really low, so I did a second one which was normal. I hope future readings are better.