A smart open house system for providing a mobile device application useful for identifying and viewing the details and location of at least one real estate listing. The user interface may be a real estate multiple listing service interface, a global positioning system module, and a user-input interface. The interface to the real estate multiple listing database may include a search module for creating a user-initiated query to locate at least one real estate listing or at least one open house listing. The global positioning system module may also provide access to the stationary and moving location of both the user' s the mobile device and the map display useful for guiding a user the real estate listing or open house listing. The user-input interface may further include user-defined search criteria and a note-taking module for a user to document observations.