Hello!
Great that you are cloning your Android app to iOS, while it may seem challenging to port the 'exact' app to iOS, it certainly can be done. I have just recently completed an app for a client that retrieves forecast information from a JSON file for the next 48 hours. And I think it would really be great to use that freshly exercised skill again to help a client like you.
While my bid is certainly not the best, you can be sure that you will receive a well polished and a good looking iOS app.
I look forward to hearing from you!
Regards,
Umar