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