I looked at a bunch a while back and found this to be a nice middle ground with a usable mobile interface: https://floorplancreator.net/ https://floorplancreato

I looked at a bunch a while back and found this to be a nice middle ground with a usable mobile interface: https://floorplancreator.net/ https://floorplancreator.net/ Paid version can export to DXF (AutoCAD)