SparkleShare is an open-source cloud storage and file synchronization client app. By default, it uses Git as a storage backend. SparkleShare is comparable to Dropbox, but the cloud storage can be provided by the user's own server, or a hosted solution such as GitHub. Advantage of self-hosting is that the user retains control over their data. In the simplest case, self-hosting only requires SSH and Git. SparkleShare's support for both Android and iOS devices is on hold due to the lack of developer resources.
See also
Comparison of file hosting services Comparison of file synchronization software Comparison of online backup services
References
External links
HOWTO - SparkleShare on Ubuntu