When comparing Tarsnap vs Déjà Dup, the Slant community recommends Déjà Dup for most people. In the question“What are the best backup programs for Linux?” Déjà Dup is ranked 4th while Tarsnap is ranked 9th. The most important reason people chose Déjà Dup is:
The program's interface has 4 tabs - overview, storage, folders and schedule. You select where to back up in "storage", what folders to back up and ignore in "folders" and how often to back up in "schedule." Overview displays all these settings and offers a choice of backing up and restoring.
Specs
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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 Straightforward interface
The program's interface has 4 tabs - overview, storage, folders and schedule. You select where to back up in "storage", what folders to back up and ignore in "folders" and how often to back up in "schedule." Overview displays all these settings and offers a choice of backing up and restoring.
Pro Can back up to any server that Nautilus can connect to
You can connect to both physically connected devices as well as devices that are available over FTP, SSH, as long as Nautilus can connect to them.
Pro Available on Ubuntu by default
For people using Ubuntu, this is already installed.
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 Backend provider choices recently removed
As of version 42, support for backup to Amazon S3, Google Cloud Storage, Openstack Swift, Rackspace, etc has been removed entirely. Google Drive is the default and seemingly only option.
Con No way to set limitations on how much disk space the application should use
The program will use up all available disk space for backups. There's not way to set limitations.
Con No way to set a specific backup time for automatic backups
You can only set the backups to be daily, weekly or monthly without the ability to tell what time the backups should happen.