A free program for Android, by Mapwize.

Mapwize is a mobile application that makes it possible for you to see the indoor and outdoor maps of any building or location. The application is integrated with your phone’s GPS, so that it can quickly give you the correct directions to any place in the world.

In addition, the Mapwize app allows you to add your current location to the map to make it easier for you to navigate. The app can also be used to search for a specific place, or to find out more information about a particular place, such as the address, phone number, and even the email address of the owner.