The iPhone has become increasingly popular over the years, and Stone Soup Tech has proven that they are by far the best iPhone app design firm that is currently providing services in the industry. Their headquarters is located in Atlanta, Georgia, but designing iPhone apps is not the only service that they are able to provide. Some of the other mobile app services that they provide for their clients are tablet app development, Windows app development, Android app development, and iOS app development. The three other service areas that they provide services in are artificial intelligence, web design, and technologies. Some of the technologies that they are proficient in are ASP, JavaScript, PostgreSQL, C++, CSS, MySQL, Flash/Action Script, Objective C, PHP, Java, and HTML5.