If you want fewer friends in Facebook, and if you’re ready for a little cleaning, then you might like to use the recently released app designed for Facebook called Duster. Developed by Carter Wheatley and Adlai Gordon, two computer science students at Boston University, Duster app connects to your Facebook account and walk through your list of friends to pick out the people you haven’t been interacting with lately.
Duster provides a list of casual acquaintance that gives you the option either to “Hide” them from your feed or simply “Dust” them altogether.