If you're big on outdoor activities — hiking, trail running, or cycling — you know the familiar problem: Spotty GPS and data signals can mean a messy time trying to find your way out of the woods.
Imagine the power of a US$500 outdoor GPS built into a $5 app available on iOS and Android devices. In a nutshell, that's ViewRanger. The advanced mapping GPS app has been around for years in Europe ...
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