updated 03:55 pm EDT, Wed July 17, 2013
App uses BitTorrent protocol, encryption to synchronize files
BitTorrent has launched its free file synchronization software as a beta, and has introduced a mobile app version of its client. BitTorrent Sync allows for files stored on various devices to be synchronized across all the systems, effectively providing a similar service to Dropbox and SugarSync, though without storing files on a server online.
The app for Windows, Mac, and Linux-based desktops is joined by an Android version for smartphones, with the BitTorrent blog stating that an iOS app is on the way. Files stored in specific nominated folders will automatically be transferred to similar folders in other devices in the group, with updated files being passed to other systems as they connect on the network or Internet.
Data transferring between devices is encrypted and uses the BitTorrent protocol for inter-device communication, rather than using a central server that stores the files for later distribution once other computers or phones connect to the account. The amount of storage available to the group is dictated by the local storage of each device, which, when combined by the encryption and the BitTorrent process, could make it attractive to those worried about their data being collected by government bodies such as the NSA.
The latest update of the software also adds a "basic versioning capability," namely a folder containing previous versions of synchronized files, as well as one-way synchronization and "One-time Secrets."