Ascend is an open source app for vector and raster maps. Features include 3D terrain, offline search, track recording and editing, managing saved places, saving map tiles for offline use, and more.
CUSTOMIZABLE
* Includes a simple, customizable style for OpenStreetMap vector tiles with modes for hiking, biking, and transit.
* Generate and import your own tiles from OpenStreetMap extracts.
* Overlay customizable hillshading, shaded relief, contour lines, and slope angle shading calculated in real-time over any base map.
* Supports plugins for search, routing, map sources and more.
* Add new online map sources and combine layers to create new maps.
COMPREHENSIVE
* Offline search
* Wikipedia search
* Manage saved places
* Show geotagged photos from your Photo Library.
* Create and edit routes
* Record and edit tracks for hiking, fitness, and more
* Save map tiles for offline use
Learn more at https://github.com/styluslabs/maps