A social circle inference system
Sharing on Facebook can get complicated if you only want to do so with college friends, colleagues or golf buddies. You have to manually sort potentially hundreds of people into separate groups.
Katango, a free iPhone app introduced on Tuesday, intends to alleviate the hassle by automatically organizing Facebook friends. In theory, its technology will detect who is a family member, who attended the same high school or who lives in the same city and place them in the relevant group.
Users of the app can then reach out to people in a particular group with a message or photo, without spamming or over sharing with everyone one else.