Coinspeaker FB Stock Down 0.56% Now, Facebook to Challenge Twitch, YouTube by Launching Gaming AppFacebook's new gaming app will be mainly focused on watching and making game live streams. Android users anywhere in the world can try it today. After Apple approves the app, it will be available on iOS as well. FB stock is slightly down.FB Stock Down 0.56% Now, Facebook to Challenge Twitch, YouTube by Launching Gaming App