Used Archivaldo for Mac?
Editors’ Review
Archivaldo for Mac creates file archives using a proprietary compact binary file system called the Archivaldo Resource Archive or ARA. It's lightweight and easy to use, but won't substitute for your existing archiving app.
Pros
Unlimited free archiving: With Archivaldo for Mac you can create enormous archives -- the only limitation is the availability of disk space.
File list printing: The app allows you to keep track of the contents of an archive without the need to individually list file names, a useful feature when dealing with many archives on a regular basis.
Dropbox linking: You can instantly send the archive you've created to your Dropbox account with just one click.
Convenient share button: The "Share" button allows you to quickly share your archived files via email, so you won't have to launch your email application every time.
Cons
Not a mature application: There has been no update since September, 2012. Additionally, the "Pack" function is quite a chore to figure out.
The ARA archive format is not popular: So far, the ARA archive format cannot be opened by any other Mac app we know of, which considerably limits its usability.
Bottom Line
Despite its capabilities, Archivaldo for Mac suffers from a lack of updates and ultimately proves to be limited in scope. It's not really an alternative for the archiving application on Mac; it tries to be different, but has nothing compelling to offer. If you're an expert "archivist," however, you may want to try it out.