ProScan does not have a mobile app. I will post a picture or video of my setup later today.
I was thinking of something along these lines, which I'm going to be looking into more in advance of my SDS200 arriving.
Chrome Remote Desktop
I would be remote controlling a PC that is remote controlling my networked (via LAN) SDS200, hopefully allowing handheld control / viewing from anywhere...that's been my dream for a while. My "right angled" CAT 6 cable is on the way for tie-in to my switch.
I already own and love Proscan. Would love to see that setup when you have a chance to share, thanks.