This app is crap.

The app, regardless of the accuracy, doesn’t work most of the time. The tracking circle will, if it starts at all, get to 75% to 90% around and then stop. It doesn’t matter whether I am moving or standing still. My fingers are wide enough that coverage of both lens and light are not an issue. It won’t work for my wife, either, whose fingers are more slender than mine, but still cover both lens and light. I wish I hadn’t paid for it. I would give it 0 stars if I could.

daleb.canada about Runtastic Heart Rate Monitor, v1.2.1