backit 0.85 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is included in System Tools. The actual developer of this free Mac application is underplot. The most popular version of the software is 0.8. We recommend checking the downloaded files with any free antivirus. The bundle identifier for backit for Mac is com.theapplegeek.Back It.
From the developer:
Super simple solution that just does the work on any platform (OSX/Linux/Windows). Choose which folders and files you want to backup, create projects, customize the interface. Make backups with one click ! Based on Adobe AIR platform, this solution runs just everywhere
You may want to check out more software for Mac, such as CarbonErrors, Titan4 or iSauvegardes, which might be similar to backit.