Any Twitter user with between 100 and 10,000 followers can log into the app with their Twitter account. It then analyses the connections with their followers and groups them into communities of people with similar interests.

“Discovery highlights Affinio’s unique ability to leverage the social graph to understand who exists within any audience,” said Affinio CEO Tim Burke. “It’s an eye-opening experience for anyone with a social following, large or small, to discover the interest-based communities of people they’ve attracted to their Twitter feed over time.”