[ChrisClark]

That was his point though. You build the UI in Xamarin.Forms and on the iPhone there is a back button in the top left corner, on Android there isn't. Automatically rearranging and conforming to the platform guidelines.

[LeoNatan25]

Yes, the most noticeable differences are implemented. But this is very a superficial look. From the developer's page:

https://xamarin.com/forms

Xamarin.Forms is best for: • Apps that require little platform-specific functionality

Xamarin.iOS & Xamarin.Android are best for: • Apps with interactions that require native behavior