You can follow a track providing by gpx file and record your track by GTs. You can understand your current position with the GPS automatic positioning and reduce the risk of lost.

GTs support Mapsforge and MBtiles offline map. It's helpful in climbing and hiking.

Support hgt file to improve elevation accuracy. You can extract hgt files to the specified path by Global Settings.

You can download hgt files from http://www.viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org3.htm

You can download offline map (.map format) from
http://www.openandromaps.org/en/downloads
http://download.mapsforge.org/maps/

If you like this app help me to translate into your language please. you can contact me by email. Thank you.