PC Magazine has reviewed Stardock's new utility, KeepSafe.

KeepSafe is a program that provides real-time file archiving and revisioning. It makes protecting your important files and data an integregal part of the file system.  Once installed, users decide which directories and files to protect and from then on, when a user (or the system) saves a change to such a file, KeepSafe automatically creates a revision and backs it up to a remote location decided by the user. Users no longer have to "remember" to back up their data nor do they have to put together system wide "timed backups" to protect this data.

PC Magazine review summarizes:

KeepSafe is devoted to protecting all versions of the files you're currently working on—a second line of defense after your full backup strategy. It does this one job with single-minded intensity and makes recovering earlier versions a snap. If you've ever saved a bad file over a good one or found your latest version corrupted, you'll appreciate the ability to get that file back just the way it was a minute or a month ago.

KeepSafe's home page is https://www.stardock.com/products/keepsafe