Cardiio is a new app that allows you to measure your heart rate by simply looking at your iPhone, with no uncomfortable chest straps. The touch-free heart rate monitor is an award winning wonder of technology, it is way ahead of other similar heart monitoring apps. All you need to do is point your iPhone to your skin and in seconds the app will give you an insight on your hearts condition. It analyzes your heart rate, fitness level, even your potential life expectancy! Are you sure you want to know this? source
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