CalTopo

CalTopo LLC

About this app

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

Cloud Sync

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.

Ratings and reviews

I'm sure I don't use this app to its full potential, but I do use it when I'm out hiking and it's such a game changer. It's basically what I've always wanted: to be able to point my phone at a mountain and be able to see the name of it and the distance and the roads and trails that are on it. How amazing is that? I love that I can also track my progress so I won't get lost, mark points if I find an ideal picnic spot I want to return to, and discover new trails. It's absolutely wonderful.

Been using this since the initial beta stages years ago, when it was practically unusable. Since the constant rapid improvements, this has been my only mapping app, and website, I use. It's far superior to others, of which I used them all at one point or another. Happy to pay the annual subscription knowing it helps improve maps for recreation & SAR.

I used to really like Caltopo. My only problem with it was the inability to "move" tracks between maps. You have to download then reupload. But sometime in the past 6 months, the app has become increasingly buggy. It's ridiculously slow, downloading is almost impossible because the app seems to freeze 95% of the time, and all sorts of other issues. I'm probably going to switch over to Gaia or something else after my subscription is up.

What's new

Sync improvements on top of the 1.10.9 build