Five Apps to Spice Up Your Exercise Routine in 2013

Categories: Technology

4. Cardiio

Cardiio transforms your phone camera into a touch-free heart rate monitor. Yeah you read that right. The app analyzes the light reflected off of your face to tell you your pulse. Aside from this being completely mind-boggling as a technological advancement, it's great for people who want minimal workout assistance. You can use Cardiio to see if you are in your target calorie-burning zone, and then put it away and continue with your jog. Simple and useful.

Cost: $2.99

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