Created by the Federal Office of Topography (swisstopo), the app displays all national maps, in addition to aerial photographs, aeronautical charts, and historical maps.
It also has data about public transportation in a given area, and information relating to hiking trails, cycling paths, designated wildlife areas, ski and snowshoe routes, and even landing sites for drones.
— swisstopo (@swisstopo) July 25, 2020
The map can be used not only to orientate yourself in a particular region, but also to create a personalised tour following the road and path network. Additionally, the app shows the length, altitude difference, and a calculated approximate walking or driving time.
According to swisstopo, most of the app’s functions can be used offline. Even GPS tracking does not require an Internet connection. However, the map content must be downloaded beforehand from the internet. Maps can only be used offline if you have stored them.
You can find more detailed information about the content here.