(PS3)Injustice: Gods Among Us - iOS Help?

I am hoping this community can help me...

For those who own a iPod, iPad, etc., I need your help. There is an app, related to Injustice. However, I do not own anything Apple. All I would need an individual to do is log in with my WBID (Warner Bros ID), and get a Joker Card in the game. I would like all of the skins, but the one I want most is related to that card.

Thank you to all, and I hope someone will help me out!!!