As an existing user of Blue Nomad's BackupBuddyVFS Pro version 3 [BBVFS v3] I was interested in seeing if their newer version 4 was worth the upgrade charge. For me the headline changes were support for ZIP format archives, continuous backup when files change, and automated checkpointing.

Since I was looking to upgrade I decided to checkout other applications. I had previously tested other applications before purchasing BBVFS v2 and didn't have time to test everything again. So, as a satified user of a number of Resco's Palm applications, I decided to look at Backup v1.

The results of the review are here.

Update on 26th March 2007: refined time elapsed backup triggers for both applications.
Update on 25th March 2007: added comparison of performance.