It is the same amount of code if you use ObjC or Xamarin.iOS. Just slightly different syntax.
Your alternatives are
- MT.Dialog (if you want to do the UI in code). This will dramatically reduce the complexity and MT.Dialog was designed exactly for the creation of quick and simple settings screens. In most cases, you will want to subclass the predefined elements to get best results.
- Static
UITableViewCells
if you want to use Interface Builder. This allows you to create your UI in IB (or the iOS Designer built into Xamarin Studio). You can find tutorials on the web, like this one.