"Sitegeist is a free Android and iPhone app from the Sunlight Foundation that helps you to learn more about your surroundings in seconds. Sitegeist takes public data about the people, housing, history, environment and things to do for any U.S. location and presents it in easy-to-view infographics. Just scroll and swipe your way through the categories to get a feel for the area. Everything from age distributions to political contributions and median home values to record temperatures. It makes complex localized data easy to understand so you can get back to enjoying the neighborhood. The app incorporates publicly available data from a number of sources including the U.S. Census Bureau, InfluenceExplorer.com, the Dark Sky weather API and even Yelp and Foursquare. Sunlight will continue to add and improve on the app as more rich data becomes public."