Upgrade iOs app

Hi ,

Straightforward here.

Your job is to :

* creating login to Facebook at app launch (user cannot play app without it)
* Invite FB friends , GIVE and RECEIVE GAME COINS between FB FRIENDS that are accept invitation
* on every app startup - pop up window to invite friends in exchange for coins and shop coins
* setup FB app account and all other requirements to iOS app work properly and smooth
* prefer not to need server backend api (maybe use Apple Game Centar for it) but if yes,then I like to set it up on Parse.com

Your requirements:
* have done similar work (please provide some links)
* you are fun and flexible

I will provide all graphic assets and I do own a domain or I can purchase new one if needed.

this is game I am talking about
https://itunes.apple.com/us/app/turtles-huh/id542661154?mt=8

Please reply with hint CONNECT just to know you read all ad.
Of course put your proposal amount !!