3dcandy
Because it's not free that will limit its appeal but also mean it will be less useful
Devs have to eat too :p
I think use for the end-user is limited, it's really for reviewers to help them compare phones especially, even more so if the stress test helps detect boosting stability.
I can get around the top 1060 result :D But.. my score is invalid due to g-sync/v-sync and I'm not going to mess around with global settings since it took long enough to get it working how I want (per application settings fire fine for individual 3dmark tests but still flag as invalid due to the global settings)