Hello there,
I Irshad Dekavadiya and I am natvie iOS developer and i am working with iOS app development since 2014 and I have 5+ year experience, I have read your requirements and I can fix your apps all bug within your budget and time line and I have all the skills which you need for your application
skills
I have a great knowledge of objective c, swift, autolayout, payment gateway integration, api integration, Google map integration,third party library integration,iOS push notifications, Apple pay, publish app on app store, create certificate and so on.
For more discussion you can message me in chat box.
Thanks and regards.