Julian Ustiyanovych

I meant to mention this: I made it in Sketch using this template. I have yet to find a tool to create a nice conversation tree (was considering building it!).

For the journey with the actual screens it was also with a Sketch Bot UI kit that I created for free.

Bot Society though I noticed recently launched a nice feature that does this while creating the conversation which is super handy I just started to try out.

Hope this helps!