Downloading AutoRate 4.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus.
The unique identifier for this app's bundle is au.id.tyson.AutoRate. The actual developer of this free Mac application is David Symonds. The software lies within System Tools, more precisely File Managers. The most frequent installer filename for the program is: AutoRate 1.6.dmg. The following version: 1.6 is the most frequently downloaded one by the program users.
From the developer:
AutoRate application automatically sets the rating for selected tracks in your iTunes library according to how often each track is played, and how often each track is skipped relative to the rest of your library.
It uses a 10 bin normal cumulative distribution based histogram to automatically scale the ratings so that the mean rating is ~3. Optionally you can use a linear scale with manual shift, scale factor and mid range skewing.
You may want to check out more software for Mac, such as Tags, XNJB or ACTPrinter Mac, which might be related to AutoRate.