Best in class!

I am using HRV for training, HRV elite, and Ithlete apps. I find this to be the best one because it utilizes the camera to which when placed in other areas of the body besides the finger, you can get a really good read from your heart rate. I find that it is even better than a chest strap(with a left pectoral placement). The only reason I didnt give a five is because I would like a better or more calming voice for the breathing guide early in the morning. Could you please make the voices calming voices. Best HRV app!

Fit4evr about HRV4Training, v6.3.6