Quambla
Private file archive (Dropbox, iCloud, etc alike)
...The advantages of such technology are: you won't pay anything but you will reuse your ftp and sql resources without relying on any external services and you will keep your data where you really trust.
Pure Cloud-systems can be very efficient but have several drawbacks and they are not as cheap as they look since you will get charged each time you use them or each time your subscription expires.
Our project took in account each negative issue related to a Cloud-system environment and try to find an alternative solution to it.
To use Quambla you need an FTP account with READ/WRITE rights, and at least one MYSQL account with GRANT permission.