In this chapter, we will be introducing the features of iCloud and their storage APIs. These allow you to develop your application to write and store user documents in a common and central location, with the ability to access those items from all of your computers and iOS devices.

Making a user's document available using iCloud, means that a user can view or edit those documents directly from any device, without the need of having to sync or transfer those files. Storing documents in a user's iCloud account provides an added layer of security for that user. Even if the user loses their device, the documents can easily be retrieved from the device, provided that they are contained within iCloud storage.

Through the use of the iCloud storage APIs, you can make your applications capable enough to store user documents and key-value data, allowing this information, and any changes to it, to be pushed to all of your iOS devices all at the same time. By...