Until ZBrush 2018 (which incorporates Sculptris tesselation model), Blender's Dynamic Topology mode was the closest thing to Sculptris as far as I know.

The cool thing I noticed about Dilay when I checked it out was that it had a Zsphere-like mode as well.

I love blender but its sculpting does not even come close for me as to Sculptris/3D coat for me personally.

I really like Dilay because it certainly gives me the closest Sculptris experience and that also on Linux/Mac which is an added bonus!