When comparing BitTorrent Sync vs Tresorit, the Slant community recommends Tresorit for most people. In the question“What are the best personal file-syncing solutions?” Tresorit is ranked 5th while BitTorrent Sync is ranked 14th. The most important reason people chose Tresorit is:
Encryption is performed before content gets uploaded to the cloud.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro No service cost, storage limits, perfomance limits or privacy concerns
Since BitTorrent Sync uses P2P technology and does not require an external server from a third party, the only limitation if what is available to the user.
Pro Clients on most platforms available
BitTorrent Sync is available for Windows, Mac, Linux, Android, iOS, Windows Phone and BSD.
Pro Self hosted
If user opens a malicious website that website may create users to access your data ("When registering, http traffic for creating new user on loopback http://127.0.0.1:8888"). Being self hosted one does not need to open a site to get to their files.
Pro Client-side encryption
Encryption is performed before content gets uploaded to the cloud.
Pro Cross-platform
With clients for Windows, Mac, iOS, Android, Windows Phone, and Blackberry.
Pro Free storage space (get additional space through bonuses)
5 GB, up to 16 GB with bonuses.
Cons
Con Proprietary
Being proprietary, it's harder to audit.
Con Has some risky attack vectors
The only really good thing it has is that data is self-hosted (i.e. hosted on a server running on your machine with data that are on your machine).
- If user opens a malicious website that website may create users to access your data ("When registering, http traffic for creating new user on loopback http://127.0.0.1:8888")
- GetSync.com server receives many (all?) hashes in cleartext when sharing the directory.
Con Pro version for a fee
Selective Sync only available in Pro version. Business use is not allowed with free and Pro versions.
Con One peer of your network always has to be online to propagate changes to the other peers
Con Android app drains battery fast
Con No Telephone Support
Con Proprietary
Because the software is proprietary, there's no way to review the security practices or really know how the software operates under the hood. As such it can be considered as not safe for sensitive information.
Con Significantly more expensive than just about everything else
