The DropBox backups are a Pro feature and create daily backups to your DropBox "Apps" folder. They can be enabled in your Settings. The backups are not in a readable format, but can be sent to us if you wish to ever restore or access the data from the backups. It does give our users extra peace of mind knowing they have their own local copy. Eventually, we will allow users to perform self-restores...but that feature is not available yet. However we can perform restores for you, either from your DropBox backup, or from our own daily backups.
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