What you need for this book

As you are developing iOS apps, you will need a relatively new Apple computer with OS X Yosemite (10.10) or above, Xcode 6 or above, and for some chapters, a physical Apple mobile device would be needed, because some features are not supported by the simulator. A few cases will require you to be enrolled in the Apple Developer Program due to the requirement of some capabilities. An Internet connection is also required for some chapters.