Think of Haiku as a design portal to your team's codebase. Use Haiku to:
* Design imaginative UI components
* Snap them into existing codebases (Web, iOS, Android)
* Then keep iterating on them from your design tools, hand-in-hand with developers
Haiku helps your team build your product, together.
Easy to understand (thanks to the tour guide)
Work with Sketch and React
It's free (but it can change I think)Cons:
Only for mac, for the moment
Please don't do a monthly billing :(Rodolphe Béjot has used this product for one day.