Pulse Phone iPhone App Measures Heart Rate with The Camera
Now Apple has made its guidelines public and in some cases, has relaxed a few rules, the company behind the Pulse app have now resubmitted and had the application approved for launch.
The Pulse Phone app uses the camera and the flash to scan an image of your finger. When blood is pulsing away through your body the camera is able to see the subtle changes in colour as the blood passes through your finger.
The flash is used to light up your finger although this can be used on the 3GS and 3G if you use the app under a bright light.