* [Bittorrent Sync](https://www.getsync.com/) `⊘ Proprietary` - BitTorrent Sync by BitTorrent, Inc is a proprietary peer-to-peer file synchronisation tool.
* [Resilio Sync](https://www.resilio.com/) `⊘ Proprietary` - Resilio Sync by Resilio, Inc is a proprietary peer-to-peer file synchronisation tool.
* [Drive Virtual](http://www.drivevirtual.com/) `⊘ Proprietary` - With Drive Virtual you can sync, backup and share your files privately with your own FTP (SFTP) server or account.
* [FileRun](http://www.filerun.com/) `⊘ Proprietary` - A complete solution for your files with integration with Google and Office. ([Demo](http://www.filerun.com/demo)) `PHP`