I’ve seen mentioned a lot of different UV viewers but never took the time to note down the names and have forgotten. 
As I can’t view UV’s in Keyshot and also at times don’t want to load Zbrush. What’s a good app for viewing UV’s ?
Also…
At the moment I’m trying to understand why Zbrush works on a lower poly clone object, doesn’t this mean missing a bunch of polys on the UV map ? If someone could explain, it might stop my head from hurting. 