The Kudan AR SDK allows developers to create augmented reality apps for iOS and Android mobile devices. The service provides a multitude of tracking options and advanced rendering techniques. It also offers video capture, ambient lighting analysis, live camera texture mapping, and more. This SDK includes both Objective-C and Java APIs, as well as a Unity plugin.
Flat maps have a hard time communicating elevation changes, but now you can access the data to visualize as you want. Google Maps added two elevation services, bringing you the meters above sea level for any point on earth.