The Best Outdoor Apps for the iPhone: Offline Topo Maps

Can I transform my smartphone into a more functional piece of gear?

Jul 16, 2012
Outside Magazine

For iPhone users who want to turn their mobile device into a GPS that works offline, Offline Topo Maps lets you download USGS maps before you head outdoors so you’ll have them in remote places without service.  You get access to worldwide street, topographic or satellite maps. A very good alternate is Gaia GPS—Offline Topo Maps and GPS Tracker. ($9.99)

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