CalTopo: Backcountry map for planning with slope angle, topo and fire layers. Gaia GPS: Offline GPS maps for hiking, hunting and overlanding.
| CalTopo | Gaia GPS | |
|---|---|---|
| Category | Hiking, Ski & Outdoor Maps | Hiking, Ski & Outdoor Maps |
| Coverage | Worldwide, best in the US | Worldwide |
| Updates | Periodically | Periodically |
| Data source | USGS, satellite imagery and many other layers | Many map sources |
| Made by | CalTopo | Gaia GPS (Outside) |
| Price | Free + paid plan | Free + paid plan |
| Account | Free to view, account for extras | Free to view, account for extras |
| On phones | Best on a computer | Phone app available |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with CalTopo
- Topo maps with slope-angle shading
- Draw and measure routes
- Print large maps
- Many specialist layers
What you can do with Gaia GPS
- Many topo and satellite layers
- Offline map downloads
- Track recording and routes
Summary based on public information. Check each map's website for current features and prices.