Facebook buys teen app tbh

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

The app, an acronym for &ldquo-To be Honest&rdquo-, 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.