When comparing Tarsnap vs Tresorit, the Slant community recommends Tresorit for most people. In the question“What are the best ultra secure online backups for Linux?” Tresorit is ranked 3rd while Tarsnap is ranked 5th. 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 Focus on encryption and deduplication
Encryption allows the use to access their files with only their own keys and the deduplication saves on costs of storage as any duplicate file will be removed automatically. So not only is the platform safety minded but cost is taken into account for the user as well.
Pro No need to worry about versioning
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 No automatic deletion of old backups
Users will have to manually delete their old backups as there is no way to set a threshold of when older backups should be removed.
Con Awkward setup of encryption keys
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.