I dont know about you,but this app dont work for me.I tried it on my baby doll to see if it was real and it said that my baby dolls heart rate is 61.Really?? Then I tried it on myself and you have to keep the camera completely still.Even the tinniest move will mess it up.I read the reviews and they were really good then I got this app.I give it two stars to be nice. I dont know if its just me who it dont work for.Oh well.I hope this was a good review for you :) Have a nice day!