There are Xamarin.Forms, but what about Xamarin.Android + Xamarin.iOS? | One Dev Question
Xamarin.Forms are great but what about Xamarin .Android or Xamarin.iOS? @maddyleger1 tells us not to worry – there's lots of good work going on in those areas too.
Head here if you are ready to give Xamarin a try: http://aka.ms/TryXamarin1