Best activity tracker apps for iPhone: Moves, Runtastic, Argus, and more!

[iMore.com]

Activity tracker apps for iPhone are a great way to help us get in shape and stay that way. For people who don't want to buy expensive accessories and monitors, there are lots of App Store apps available that simply use the GPS in your iPhone to monitor and track steps, calories burned, workout progress, and more. These are currently my favorite standalone activity tracker apps for iPhone...

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