A free program for Android, by Aco.

Heart Cam is an easy-to-use app for measuring, monitoring, and recording your heart rate. You can use the app to measure your pulse rate, view the results, and save the data for later use.

To use Heart Cam, you first need to launch the application in a bright environment. You then need to cover the rear camera with your fingertips and keep it still for a few seconds. You will then get an instant measurement of your heartbeat.

You can also set the measurement time yourself. When the application detects a complete heartbeat pulse, it will play a short sound effect. You can set the recording time by yourself.