Dear, Sir
I am glad to bid you.
I read your job carefully and I think I am very qualified for your project.
I have rich experiences in iOS programming for 9 years long.
My major is game programming and you can search "Head Soccer" on Google.
It is great game I developed before.
I also have professional UI/UX designer, so I can provide you smart UI design also.
If you hire me, I will show you my great skills and I will deliver the high quality result on time.
I sincerely hope to work with you.
Kind regards.