Hello, I believe. I can accomplish this work for you.
First of all, I really need this job, not only because of the money, but to launch myself as a freelancer, it's a bit hard starting from scratch.
I may be new to freelancing, but certainly not as an iOS developer, and game developer. I have published a self produced 5-star game in the AppStore ("Penguin Fly Adventures" in case you want to look it up).
I have gained more than enough experience to achieve this protect successfully and in time. In 14 days I can deliver to you this game ported to iOS using Apple's SpriteKit API.
I know it's hard to trust on new Freelancers, but your project would really help me out, and I am 100% committed to deliver a high quality product.