Map Pilot Pro - Terrain Awareness 

The most recent evolution of the top mapping app available, Map Pilot Pro offers an enhanced Terrain Awareness feature for Maps Made Easy users and subscribers. Maps Made Easy's Terrain Awareness feature is able to be used while fully offline usable. You can use custom terrain sources from maps that have been processed by Maps Made Easy or by providing your own data.
www.mapsmadeeasy.com/map_pilot