Heart Rate Monitor Track Pulse is a new type of companion mobile app for iPhone, iPad, and iPod touch devices. This app is one of the most useful apps in this category because it can automatically calculate your heart rate without connecting to a heart rate monitor or having any other hardware. You need to place your finger on the camera lens on the iPhone's rear camera. Your finger must cover the camera lens completely.

Make sure that your fingers aren't cold.

If you have any difficulty, make sure that your fingers are not covered with any material that could change the brightness or affect the accuracy of the results.