turmoniNiche, but if anyone has a #Kardia #KardiaMobile portable ECG and has a rooted Android phone, be aware that they silently changed the app to not run on rooted phones with the latest update. I did not appreciate finding this out on a bike ride when I wanted to take an ECG. (Hiding it in Magisk works, but I had to clear my data to stop it from crashing, so I've also lost my historical ECGs. Luckily it's only been half a year or so.)
Todd Vierling 
If you're like me and have newfound heart issues such as #arrhythmia or #afib thanks to Long COVID: Get yourself a #KardiaMobile 6L. *Specifically and only* the 6L model, which is able to take full 6-axis traces.
I just sent this one to my cardiologist. It finally caught in the act palpitations I've had periodically in my adult life, but which have gotten worse more recently: #PVC — premature ventricular contractions. They've never been caught by any professional EKGs I've had.