I <i>think</i> its sort of like a shared&#x2F;live (with collaborators) &#x27;white board&#x27; type thing - kind of like if OmniGraffle&#x2F;&lt;insert your favourite wireframing&#x2F;graphical mockup tool here&gt; had realtime collaboration built-in... I think?<p>I tried something like this a while ago (don&#x27;t remember the app name) with a (then) business partner. It was pretty terrible honestly - laggy, and work done on a retina screen went haywire on non-retina and vice-versa.<p>I like the <i>idea</i> (I&#x27;m not a designer but sometimes drawing is easier than explaining&#x2F;writing, even for technical&#x2F;non-visual things) but without any information to suggest it&#x27;s purely p2p, or some way to self-host the backend, I&#x27;m not interested enough to dig further.