Stress Check is a dedicated application for iPhone owners, who actually developed Azumio and seems to do what developers tell them, measuring stress, according to CNET.
To use the application does not need to do a big deal – open the application, place your index on camera flash and expect software to do the job, two minutes.
That is to detect, flash light through the blood vessels in your finger. It’s a kind of scanning the level of hormones that “walk” through the blood. After two minutes sitting with his finger on the camera set the iPhone, the application displays the level of stress.