Accelerometers, GPS receivers and other sensors in your smartphone let you track your outdoor activities in ways that go beyond just the common map. In this week's All Things Appy, we take a look at the top five free apps for exploring, including options for fine-tuning your GPS, measuring headings and bearings, logging your tracks and reckoning distance. Google Maps, for instance, is the granddaddy of mobile mapping. It simply tells you your location and gets you to your destination -- without fail.
Friday, December 20, 2013
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