Hello Sir,
Hope you are doing fine. You want this CollectionView control shown on GitHub in your app in objective-c right?
I have more then 3 years of experience as a iOS developer(objective-c , swift ), developed more then 5 apps which is live in iTunes. Ping me on chat, if you wanna see my work, I'll provide you the iTune link. I am not a company, i am a single guy, so your project ll be completed in the given time and budget.
Obviously, you must be worried to give your "work" in hand of the guy, who has "zero" reviews. But, don't worry, I'll nurture your work with my life. Just give me the opportunity, and you won't be disappointed. Too much talking :P
Hoping for a long term association :)