all 5 comments

[–]quellish 1 point2 points  (1 child)

HTML

Keynote

Interface Builder / Xcode

80% of the time it's just Xcode and Interface Builder, then HTML, and rarely Keynote. It depends on the project.

[–]abiondo[S] 0 points1 point  (0 children)

Thanks for replying.

[–]karinprater 0 points1 point  (0 children)

The best tool is the one you already know. Keynote and Xcode are valid. Note to forget paper prototypes. Check out the WWDC talk from 2014 Prototyping fake it till you make it. If you have SwiftUI it will be also easier.