CalTopo by CalTopo LLC (Universal)
Released: Oct 24, 2019
Version: 0.6.6
Size: 110 MB
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Ranking - Navigation (iPhone)

Ranking - Navigation (iPad)


CalTopo LLC
CalTopo for iOS extends your adventures from the desktop to the field. CalTopo contains tools to plan your backcountry adventures including offline topographic maps and aerial imagery, slope angle shading, viewshed analysis, realtime SNOTEL and weather data, and many more options. The mobile apps integrate seamlessly with the CalTopo website allowing realtime syncing with the web application allowing updates to maps and routes to be passed back and forth (while you still have cell service).

If you're traveling off the grid you can download mapping layers and maps that you've created to help guide you on your adventures. When you're back you can sync the record of your journey back to the CalTopo website. No more cumbersome exporting and importing from other apps.

Plan your next adventure today!

Layers Available: (*Indicates Offline Availability)
Map Builder Topo*
Map Builder Hybrid*
Scanned 7.5'*
FS Topo*
Marine Charts
FAA Sectionals
NAIP Imagery (Various Years)*
Shaded Relief
USFS/NPS Visitor Maps
Satellite Daily and Weekly Layers
(Note: Weekly High Res layer requires Pro subscription)
And more...

Overlays Available:
Map Builder Overlay*
Slope Angle Shading* (LIDAR slope angle shading available on/offline)
Parcel Data (Note: Requires Pro subscription)
Public Lands
Motor Vehicle Use*
Realtime weather and SNOTEL data
And many others...

What's new in version 0.6.6
Added global elevation, slope angle shading, and canopy data. Rework of login flow within app. Support for new events feature and guest accounts within the app.
Screenshot #1 (iPhone)
Our verdict: Good
  • + CalTopo is a highly rated app (4.5-star).
  • + The app is free.
  • + CalTopo is currently ranked #162 in free Navigation apps for iPhone, as well as #243 in free Navigation apps for iPad.
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