mobile app for fitness startup

I am looking for a mobile app developer to create an app for my fitness startup. The app should be developed specifically for iOS devices, and its main functionality should be a Nutrition Guide. I have specific designs and style ideas in mind, so I am looking for someone who can follow my guidance and create the app to my exact specifications. My goal is to develop an app that is both aesthetically pleasing and highly functional. I will provide clear instruction on the app design and expected functionality, and the freelancer will be responsible for developing the app, in accordance with my direction. Fundamentally, I am looking for an experienced iOS mobile developer who is detail-oriented, and will work until the app is up to the highest standard.