[iOS] Where should I store my data?

• Critical data that cannot be recreated, such as documents or user-specific data that would be lost if the device were damaged, goes into the <Application_Home>/Documents directory and will be backed up by iCloud unless otherwise specified.


• Cached data that can be recreated, such as a local database or downloaded images, goes into the <Application_Home>/Library/Caches directory and will not be backed up by iCloud. This data may get purged at some point if iOS runs low on disk space.


• Temporary data that is transient and not used between app launches, such as a temporary file cache, goes into the <Application_Home>/tmp directory and will not be backed up by iCloud. You should always remember to delete files stored here yourself.


• Offline data that needs to be persistent and available when the device is offline (such as Airplane Mode), goes into the <Application_Home>/Library/Private Documents directory and will not be backed up by iCloud, but also will not be purged by iOS in a low disk space situation. For more information about Private Documents in iOS, see QA1699.