[pdappollonio]

Xamarin Forms dev here. This is true. I wrote an audiotour app and I was able to reuse everything. The only thing I couldn't reuse was the audio player because of differences between platforms, but still you can use plain old Xamarin.Android and Xamarin.iOS. Pretty good results and you save ton of time.

[sharemywin]

curious is there design pattern for that? could you still have one code base similar to how different processors are compiled? or some kind of wrapper component? seems like there should be someone to write the code once and not need to make a copy.