In my second year of NMCT two other students and myself had to create an Xamarin.forms app
This was an assignment for "project 2" where we had to create an app that would be able to report problems in the school. For example you had to be able to report a broken beamer, window, ... The app had to be created with Xamarin.forms and had to have some basic functionality such as selecting a room in a specific school and selecting a category.
The design for the app was created by myself and most of the IOS specific development was also done by me. The most core elements such as the forms for reporting a problem were created by my collegues. More of the special features such as the selectors for schools, floors and rooms were done by me.
PS: this was created in a pretty early stage of Xamarin.forms. The platform at that specific time had some deal breaking issues and third party packaged were extremely unstable.