I am iOS developer , I have experience in iOS development using swift and objective c ,
I have 1 year experience . I did many apps with different ideas.
1- I made an Voluntary application consists of two types:
*organization which need to volunteers members ,so that it make account So that it can make volunteers groups(science/technology/etc.) asked members it need ,they add and remove persons and also rate persons , they send notification to specific member or all members .
*volunteer person who want to join volunteers group , so that he make account to be able to see volunteers groups and asks to join group which aim to what he like, he can also search for groups and enter private group if he had private code (built with swift ) .
2- I made an application to know the expected weather using the API (built with swift).
3- I made an todo list application with time, date and place which reminds user with his mission in date and also near 20 meter (built with swift).
4- I made an application to display and sell the products (built with swift).
5- I made an application to know the most watched movies or the highest vote which he can add them to favourite and displayed them in youtube (built with objective c).
6- I made real time chat application with firebase (built with swift) .
If we work together, I guarantee you will receive an excellent application which work efficiently and fit all screens and all versions .