I just downloaded GPX VIEWER PRO.
I'll be offline for many days in the Utah Wilderness. I've downloaded many tracks and I've downloaded high resolution offline maps - Topo and Walkabout. I have 2 problems:
The left hand menu, settings, maps shows offline maps disabled. I have found no way to enable.
The only way for me to get high resolution is to be online then zoom in to one track. The maps show while offline but when I zoom in to to another track 5 miles awaythe resolution is blurry.