Take My Temperature is the best application available in App Store, able to measure the temperature of your body, starting by measuring your heartbeat.
It 's also able to keep track of your previous measurements in order to help in understanding your health.

How does it work?
Once you open the application just click on the START button and gently place the tip of the index finger of your left hand in front of the Rear camera. After a few moments the app will begin to measure and, at the end of the countdown, perform sophisticated math operations to calculate the exact conversion between your heartbeat and your body temperature.

Options:
You can select the calculation of the temperature in degrees Celsius (° C) and Fahrenheit (° F) and adjust the precision of measurement. Obviously, precise measurements will require more time.

Warnings:
Measure your temperature in a sitting position and in a Relax status, without making any previous type of physical activity.

Although the calculated result is not 100% sure, is a good starting point for understanding how the health of your body is. Please note however that the use of this application does not exclude or alter the importance of medical consultation in situations of very high fever.