BikeAtor is a program to show GPS-informations in different ways. It help the user to find his way and gather statistics about his doing.
Main goal of BikeAtor is to show maps of different sources like OpenStreetMap. All downloaded images can be used offline. So there is no need to be online during navigation.

There is a Quickstart Guide in english.

Other documentation is only available in german.

Some screenshots:
Karte Geocaching Tacho

Thanks to for the permission to use there service in the freeware version.