I'm going to download this to see if it may be useful in addition to some other apps I have. At any rate here is Google's translation of the Play Store description.
Free viewer ideal for hiking, cycling, running or skiing, which uses as a background mapping the services of the National Geographic Institute and another set of services of other Ministries (Service Stations provided by the Ministry of Industry, the Cadastral information of the plots provided by the General Directorate of Cadastre, etc).
With this application you can explore the routes of the National Parks or the stages of the
Camino de Santiago or use your TRACKS / ROUTES, plan excursions using maps, navigation and guided tours, without having to have internet connection
All the maps and routes that are used are free and allows you to:
- GPS location, even without mobile coverage
- Offline map mode *: save them in advance
- Trace routes (Tracks) with GPS on the maps of the National Geographic Institute.
- Save and view the tracks in gpx or kml and kmz format.
- Supports IGN WMS and WMTS map services, you can use the application as a WMS viewer
- Use the services of the CartoCiudad project to locate the places
- Positioning visualization by coordinates, heading, speed, altitude. Distance Calculation
- The application is in Spanish and English….
- Based on the OruxMaps software (version 6.5)