http://www.naviter.com/2014/06/seeyou-6-1/

New Vector maps carry about 100 times more data than before. We have used modern
rendering techniques to emphasize the peaks and the shades in an undulating
terrain. We have also optimized the rendering of the maps such that they now
move an pan almost instantly. Needless to say all of this data download from the
SeeYou Cloud directly to your computer and stays there forever for offline use.

Stunning Satellite imagery is now available directly in SeeYou. Just as the
Vector maps Satellite images will download from the SeeYou Cloud automatically
and stay there for offline use. Due to the service agreements the Satellite
images will only work fully in the registered version of SeeYou 6.1 and above.
In an unregistered version it will download a small sample for you to see that
it really works.