Facebook buys teen app tbh

Facebook Inc (FB.O) has acquired tbh, an app popular among teens, as the world’s largest social network looks to attract more users.

The app, an acronym for “To be Honest”, allows users to anonymously answer multiple choice questions about friends, who then receive the poll results as compliments.

Over 5 million people have downloaded the app and sent over a billion messages in the past few weeks, tbh said on Monday.

Financial terms of the deal were not disclosed.