The S4iOSLib library is designed to be both a platform (framework, if you will) for iOS development, as well as a 'container' for utilities that should be useful to all Apple developers. The library's APIs are designed to convey the same architectural patterns utilized by Apple's iOS/ObjectiveC-based platform. It relies heavily on protocols and delegates, and offers singletons when appropriate for Manager-type classes. The main goal, however, is to provide a robust and stable set of utilities that will allow developers to focus on creating great new features for iOS, and not reinvent the millions of little wheels that underly almost every application.