Gaia GPS is a mapping and navigation app for Android, iPhone and the web. It is quite popular in the US and Canada due to a large number of specialized map layers for these countries, such as hunting, fishing, historic, public land and others, as well as some premium basic maps such as National Geographic Trails Illustrated. Hikers in the rest of the world can use the maps that are usually available with other navigation apps, which are based on OpenStreetMap.
The web app is a great choice for route planning, while the mobile app excels in navigation, track recording and aims to do so in following routes. Together, the web and mobile apps provide a nice platform for storing and organizing your recorded tracks, planned routes, waypoints and even photos.
The web and mobile apps are synced through the Gaia Cloud linked by your user account. This makes it a great platform for planning routes on your desktop and having them readily available in your app, without having to do any manual file transfers.
Gaia GPS was generally well regarded in the hiking community until it was purchased by Outdoor Magazine in 2021 and became part of the Outside+ suite of products. That's when the costs of using the app started to raise, together with privacy concerns among the community.
AGPS-TrackerOm is an interesting and quite a robust Android application. It's main function is to follow preloaded tracks and record your tracks, and tries to do so reliably - ensuring that the GPS data is recorded at all times, even when the phone goes into stand-by mode. This means you shouldn't get surprise straight lines in your GPX tracks. It can also provide enhanced accuracy of your current elevation, by using altitudes from NASA-generated Digital Elevation Models (DEMs) instead of the GPS-provided elevation which can be quite inaccurate.
AGPS-TrackerOm (previously called A-GPS Tracker++), differs from the lighter version, A-GPS Tracker in the following:
- AGPS-TrackerOm uses offline maps maintained by OpenStreetMap, which you need to preload. The "lighter" A-GPS Tracker uses Google maps which are not available offline.
- You can download Digital Elevation Models (DEM) which allow the app to display altitude contour lines and provide DEM altitude along with GPS altitude, the former being more accurate
