Yahoo, Metacafe, birthdays, games, Spoitfy, BranchOut, more on this week’s top 20 growing Facebook apps by DAU

Web integrations, music apps, games, horoscopes and a few other applications made our list of the fastest growing apps by daily active users this week. The titles below grew between 200,000 and 1.9 million DAU, based on AppData, our data tracking service covering growth for apps on Facebook.