I realize your motives are good, but those patients who would be most likely to access your heart rhythm are those who should not! You are probably aware that there are many super anxious people, to put it mildly, on the heart rhythm forums. I think your tracker will just encourage them to obsess even more than they already do! The HUGE majority of them have totally benign rhythms anyway, so they really need to learn just to accept them and move on. The heart rhythm physician, Dr. Mcm. is very very good at explaining that, but many have some neurotic need to try to find something really wrong anyway. I'm sure you won't take the tracker away, but I had to say my piece!