This would need to be a much longer answer. But for the most part, it's through defining a clear product roadmap at the start, providing a live work in progress, as the MVP is being built, doing weekly checkin calls with Slack in between, and delicately balancing any potential scope creep.
For your second question. I don't actually do any clickable demos. Only a handful of folks ever ask for one, I tell them to use proto.io or Invision.
Oh that makes much more sense :) Does that enable you to work with multiple customers at the same time?
It looks like a fantastic business model for someone with your skillset and talent.
Yup, thankfully!
Thank you! :)
It has its ups and downs. I guess the other big factor is that I try to limit the projects I take on, to the more interesting stuff, to try to reduce any fatigue/burnout.
Given the list price for your clickable demo you could burn through that just fielding emails / calls with your clients.