Here comes another one of those apps that drops jaws with its ingenuity — it’s a heart rate monitor that uses the iPhone 4’s camera to measure minute changes in skin color caused by blood flowing into and out of a finger.
According to Heart Rate – Free‘s App Store press release, simply sticking a finger over the iPhoen 4’s camer should deliver a heart rate figure within a few seconds, accompanied by a heartbeat chart. The app’s developer is quick to point out that the Heart Rate – Free is for entertainment only, but the concept is remarkable.
As its name suggests, Heart Rate Free is free.
When he was eight, Eli Milchman came home from frolicking in the Veld one day and was given an Atari 400. Since then, his fascination with technology has made him an intrepid early adopter of whatever charming new contraption crosses his path. He calls San Francisco home, where he works as a journalist and photographer. Eli has contributed to the pages of Wired.com and BIKE Magazine, among others. Hang with him on Twitter.
