CalTopo v1.24.2

CalTopo LLC

About this app

Developer Description

Backcountry mapping evolved

The best backcountry mapping tool on the web is now available on Android.

Cloud Sync

New on CalTopo: the CalTopo app is now satellite ready, allowing you to use many features of the app offline with satellite data!
The CalTopo app integrates with your existing caltopo.com account, and edits sync between the two in seconds. Plan your trip using CalTopo's best-in-class mapping tools and then seamlessly transition to your phone. Once in the field, sync your GPS track back to caltopo.com in real time, or drop markers and instantly share them with friends.

Amazing Maps

Access CalTopo layers not available elsewhere, including the MapBuilder series, land management, sun exposure, fire activity and custom terrain shading. Pre-packaged map files (subscription required) make for speedy offline downloads and simplified data management. An elevation data layer supports measuring profiles and point elevations, even when offline.

Real-Time Data

NOAA weather forecast visualizations and MODIS satellite imagery aid in-field decision making. Coming soon: SNOTEL, weather stations, streamflows and forecast grid data points.

What's New

Small improvements and minor bug fixes.

Version Information

Version: 1.24.2
Downloads: 100K+
Updated on: Jan 9, 2026
Released: Sep 21, 2020
Requires: Android 5.1

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CalTopo users say on Google Play

★★★★★

jdc

I've been doing hardcore wilderness/ off trail navigation for 30 years and finally a SERUOUS nav system. not just an app, A system. web app allows me to plan and set routes. walk-by-gps app works fine, but I use compass+map and the maps made with CalTopo are second to none. LOVE this system, can't speak highly enough of it for serious /hardcore nav geeks. I hate subscriptions for software, but this is one (the ONLY one) I buy - it's THAT good.

★★★★

Darren Siongco

Not that easy to use. Some URL icons don't work. Super limited use with the free version.

★★★

Adam P

very promising, but clunky. This app has incredible functionality in the free version, especially when compared to other apps, but it takes a while to figure out how to use it. I would be interested in trying the premium version but there's no way for you to sign up in the app! I guess I'll just keep my money...

★★

Stephen Crye

and otherwise decent mapping application is ruined by clunky and inconsistent login process! For example, to sign up to their help tracking system, you create an account on caltopo itself with a password that is dedicated to that login. But when you try to upgrade or add a pro subscription, it expects you to still use an existing social media accounts such as Google or Facebook. this is total BS! why can't I just upgrades directly from the app? instead, it sends me to a browser! Fire the IT team

★

Arthur Arthur

The mobile app is a total Fail if you are trying to navigate in an offline environment like... deep in the wilderness or even state or national parks where internet is not available. It simply doesn't work and I have had much conversation with support on this to be sure it wasn't me. I have the Desktop subscription and mainly bought this to build maps for print and for that, this app is the absolute best. So, the rating is for the mobile app only.