I can do this simple app for you.
Here is something about me:
After working on my last job as an iOS developer, I quit and started working as a freelancer. So, five years later, I have two respectable careers on Freelancer.com and Upwork.com.
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.