Reveal fully supports inspecting apps you build yourself when
running iOS 10. On the other hand, RevealLoader is a third-party
library that's not endorsed by Reveal and is not officially
supported by us. I'm afraid I'll have to direct you to RevealLoader GitHub
page where you might find more information.
The fact that Reveal doesn't show any inspectable applications
in the "Connect to" menu means that the application is not running
Reveal Server library or does not advertise its presence over
Bonjour. To check the latter, I could recommend following the
Bonjour Debugging guide.
However, I won't be able to help you with checking whether the
application you're trying to inspect is actually running
Reveal Server. As I've mentioned before, RevealLoader is a
third-party library that's not endorsed by Reveal and is not
officially supported by us. Hence, we cannot guarantee that it
works correctly and with all apps, and cannot provide technical
support for it.