Testing our application on an iOS device
If you are only interested in testing the application on an Android device, please skip past this section of the chapter to Testing Our Application on an Android Device. Before we can upload our first Hello World application on an iOS device, we need to log in to our Apple Developer account so we can create and install our signing certificates on our development machine. If you haven't created a Developer account yet, please do so at http://developer.apple.com/programs/ios/. Remember that there is a fee of $99 a year to become an Apple Developer.
Note
The Apple Developer account is only applied to users developing on Mac OS X. Make sure your version of Xcode is the same as or newer than the version of the OS on your phone. For example, if you have version 5.0 of the iPhone OS installed you will need Xcode that is bundled with the iOS SDK version 5.0 or later.