http://www.appdata.com/apps/facebook/125119214225766-viddy
http://www.appdata.com/apps/facebook/124024574287414-instagram
http://www.appdata.com/apps/facebook/150768931647055-socialcam<p>Viddy has already more users connected to facebook than Instagram (14.7 Millions) and Socialcam is on track to do the same.
How come this two apps(Viddy and Socialcam) have added millions of users during the same period ( starting april 24 th)