seismoCardiograph

Sense the vibrations of your chest and measure the heart rate in 3 to 5 seconds.

This is the FIRST and the ONLY application that uses the built-in accelerometer to sense the motion of your chest and identify your heart rate.

Just press the phone gently against your chest (do not use thick clothing), keep still for a few seconds and you will get your heart rate.

It takes some skill, but once you learn it, you will be surprised. Please be patient to learn it - the acceleration due to heart is very small!
Here is a video: http://www.youtube.com/watch?v=b-6xD1M0eWs

--- USER FEEDBACK ---
Calibrated!! 5star!
by 3veen - Version 1.5.0 - Dec 9, 2012

This app is very accurate, hooked a pulse oximeter at my clinic and it correctly matched the b.p.m. Good job guys, also azumio pulse rate app gave matching rhythms.
--- USER FEEDBACK ---

WARNING: this instrument, although accurate, is not an actual medical equipment. Consult your physician.

Note: The measurement may not be accurate if your heart beat is not strong enough (at rest) or if you are not standing still/wearing thick clothes.

Note: This application is best suited for iPhone 4 and newer; on iPad it will probably not work reliably.

Because it is simple and quick to use, the application is best suited for use during sports activities. Tests show that if your heart beat is above 90bpm you will get a reliable heart rate in 2 to 3s – tested up to 200bpm.