I would suggest conservative Robotwity settings like these unfollow settings.
Be aware they are saved on the fly, so if you tick under the Unfollow tab the “Enable auto UnFollow” box, Robotwity will start scanning the number of followers that’s set and if “Unfollowing On” is set on the main page it will start unfollowing immediately.
Unfortunately the days options are ignored, in my tests Twitter accounts I followed minutes earlier are removed by the unfollow feature :-(
Continue Reading Robotwity Twitter Unfollow Tool