Angry Birds Friends flocks to iOS and Android

Rovio's new mobile app challenges users to compete against their Facebook friends.

Rovio

Angry Birds Friends has hatched from Facebook into a full-fledged iOS and Android app.

Available as of Thursday at both Apple's App Store and Google Play, the free game offers a socially-network twist. You compete against your Facebook friends as you try to take down those bad piggies.

All the points you rack up by slinging those angry birds are compared with those of your Facebook friends to see who emerges the winner.

Angry Birds Friends offers new tournaments each Monday promising new challenges, daily rewards, and a chance to take home the gold trophy.

Your tournament gameplay automatically syncs with the Facebook flavor of the app, so you can fly back and forth between the two versions. You can also invite any Facebook friends who haven't yet savored the joy of squashing a pig to join in on the fun.

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