I can build this app for you since I am iOS developer for six years on Freelancer and Upwork. During that time, my focus is strict to iOS front-end applications. I worked with my clients from all around the world: USA, Australia, Deutschland, Italy, France, United Arab Emirates, Greek, China and many others. They rated me with the best scores in over 75 projects and more than a thousand billed hours combined.
Regarding this project, once we make an agreement, we should define milestones so you release funds only on satisfactory delivery.
Currently, I wonder do you have some radio streaming platform on mind yet or this is on me to choose.
Regarding implementation since I am not graphics designer, I would rely on you to specify how app should look like graphically.
Not sure what "downloads charge" in "Integrate apple purchase for downloads charge" means. Can you explain this a little bit?
Best,
Vedran