Trekking-etc/viewer, developed by youtrek, is a free Android app that offers a plethora of features for outdoor enthusiasts. Whether you prefer hiking, trekking, ferrate, climbing routes, mountain-bike tours, skialp, or other winter tours, this app is your ultimate companion. It provides descriptive pages, lists, maps, and augmented reality to make your outdoor adventures more enjoyable and safer.

The app's main functions include browsing the contents by geographic location or keyword search, reading the tech sheet and description to understand the tour's characteristics, weather forecast, saving the most interesting tours into a favorites list, downloading tours for offline use, finding the route to the starting point, seeing the route track and your position on the map while reading compass and altimeter, seeing the elevation profile of the tour, and viewing points of interest around you with augmented reality. You can also see photos and read descriptions of points of interest, have available telephone, mail, and internet of shelters and restaurants, read the latest news, and even send an emergency SMS if needed.