I was just talking with @carlobff about a similar product called Flinto (https://www.flinto.com) yesterday. How does this compare?
@rrhoover you can build the screens directly in FluidUI
We've continued to build and expand Fluid UI - we now have interactive video presentations, comments, chat, fully updated libraries, live collaboration and a host of other features. Worth having another look if you tried it a year or two ago!