It uses collaborative filtering to automatically download music the user is likely to enjoy listening to.
Indy automatically downloads music from public websites and continuously plays new titles.
If the song is still playing when the user assigns the score, a rating lower than 3 stars skips to the next title.
The makers of the program recommend to only use Indy to discover music, and to utilize other applications to organize and repeatedly listen to it.
As of October 3, 2007, the official homepage contains only an image and the text Revver is undergoing maintenance at the moment.