I did some playing with this app. It’s definitely one to avoid unless you like sending your application usage data to people you don’t know for their own gains.
aTrackDog flawed and deceiving: “The new applications aTrackDog is designed to help users make sure that their applications are up to date. This application in theory would be a perfect solution to a flawed update system on Android. aTrackDog works by sending information about your currently installed apps over to the a0soft.com servers then …”
(Via Android Community.)