Just open the app and you can measure your heart rate at any time, anywhere
-Fast and accurate measurement.
-Save results in notes.
-A real-time heart rate monitor.
Gently place your index finger on the iPhone camera and within a few seconds, your pulse will be displayed!
Warning: This application is a non-medical product and should not be used in medical applications!
Term of use： http://www.heart.19s.co/terms_of_service.html