PeakFinder shows a 360° panoramic view from an arbitrary viewpoint of your choice. To render the panoramic views PeakFinder uses an elevation model that is integrated into the App. A database with a peak directory is included as well. For these reasons PeakFinder does not need an online connection for rendering the panoramic view and works completely offline from anywhere in the mountains.
https://www.peakfinder.org/mobile/
This sounds very cool. Is anyone using it?
I might give it a spin in my next Barney hike.