Invite your facebook,twitter,gmail friends control for ios app?

Question

I want to find an opensource or a free control for cocoa couch, what is like WeCity invite friends page?

Is there any ready to use component out in the market? Or I must create it? I don't want all in one component, if something missing from the list above, I don't care. But I want to find a "stater" component, what I can upgrade if needed.

Answer 1

What about ShareKit