I was recently diagnosed with AFib, which I never would have known if not for my Apple Watch detecting it. I then mentioned it to my doctor assuming it was a mistake. Sure enough, after a number of tests, my doctor confirmed I have afib and referred me to a cardiologist. But I did show the app to my doctor, she advised what things in particular to keep an eye on as well as recommended physical things that if I feel I need to go to the hospital. This is a great app. I rarely will purchase apps from the Apple Store, but all things considered, this was something worth buying the premium package. 7$ is such a small price to pay to get detailed, in depth reports when I have a serious health issue. The only suggestion I would make, and this may be in there and I missed it, is a section to monitor your stress levels if possible since that can take a toll on one’s heart. Otherwise, great job and a huge thank you to the developers for this wonderful app!