Offline Topo Maps by TrailBehind (Universal)
Released: Jun 12, 2010
Version: 6.4.2
Size: 47 MB
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Ranking - Navigation (iPhone)

Ranking - Navigation (iPad)

Offline Topo Maps


Instead of buying this app, please download the new Gaia GPS app. You can find it by searching for "Gaia GPS" - then scroll down and download the app with the gold border.

We're maintaining Offline Topo Maps for existing users, but our work is focused on the new app.

* * *

Offline Topo Maps (OTM) is a simpler version of our full-featured backcountry app, Gaia GPS.

OTM is the best simple topo app on the App Store, with the best maps, and the best support. Get in touch with the six+ hikers that develop OTM at

* download maps of the entire world
- USGS topo maps and aerial imagery
- OpenStreetMap-based topo and road maps of the world
- USGS topos for Alaska and NRCan topos for Canada
- highest resolution USGS topos on the App Store

* fast, functional, stable, and easy-to-use for even novice hikers

* mark waypoints and get guidance to and from places

* use metric, imperial, or nautical units

* display coordinates in Decimal, UTM, MGRS, DMS, or Decimal Minutes

* fully auto-rotatable for widescreen maps and other views

Warning: Continued use of GPS running in the background can dramatically decrease battery life.

What's new in version 6.4.2
An under the hood change to deal with a 3rd party shutting down their company. You shouldn't notice a difference.

* we're now using our own server to do the trail-routing, because the 3rd party provider shut down - it's the same software, so you shouldn't see any changes
* we also switched the auto-naming of waypoints/tracks, to a new server - but again, it's the same software and you shouldn't see a difference
Our verdict: Good
  • + Offline Topo Maps is a highly rated app (4-star).
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