[ma2rten]

There is an iOS theme (Cupertino), but I am not sure how complete it is.

[harveynick]

It’s not so much the widgets as it is the actual look and feel. Neither scrolling nor text rendering is quite right.

I wrote a post to that effect here: https://harveynick.com/2018/05/21/an-ios-developers-opinions...

[threeseed]

The available widgets are shown here:

https://flutter.io/widgets/cupertino/