So, you have shipped an iOS app, and you are looking to take it to the next level. Game Kit and Game Center can help you reach new customers through social interaction. Now, you can quickly add a level of polish to your app that used to take weeks of hard work and late nights. Implementing a leader board and achievement system has never been so simple; gone are the days of writing your own server. Easily add advanced networking concepts like voice over IP support in hours, not days. Learn how to quickly implement many advanced social networking concepts into your apps. You will be guided through the process of creating a custom Game Center Manager class that can be rapidly deployed into any of your new or existing projects. Also, avoiding common pitfalls encountered by new Game Center developers. What you'll learn What Game Center and Game Kit are and how you can improve your app by leveraging them. How to configure your app with iTunes Connect to work with game center. How to set up leader board and achievement systems for use within your app. How to add custom GUI to Game Center to match the look and feel of your product. What multiplayer and networking does to your app through Game Kit How to write an easy-to-implement and reusable Game Center Manager. Who this book is for All iOS developers who want to easily bring their current or planned app to the next level. Game Center and Game Kit, despite the name, are not limited only to games-all iOS developers with a basic understanding of Cocoa and UIKit will find something useful in these APIs. They allow even a novice iOS developer to add an amazing level of polish to their apps with a minimal amount of effort.