This book teaches you how to implement the XMPP framework, and develop a complete application like WhatsApp. All the explanations and code samples have been tested with the latest iOS 7 SDK version. The following subject areas are covered in this book: • Introduction to XMPP • Introduction to the XMPP framework • Implementing all aspects of a real time XMPP application This book will guide you step by step in the development of a real time XMPP application that will support: • Rosters • Chat • Multiroom chat • File exchange