Works + Free [SD]

Works. (iOS 9 streaming to Mac OS X.10.5 [El Capitain] )
It is free, though only for Standard Definition streaming, otherwise must get paid version $6.99
Both the Mac and iOS apps are outdated_ so cotinued support will be unlikely. Furthermore no real feature beyond simple streaming but suits my purpose!
Cheers!

Just1Micah about EpocCam Webcam Viewer, v1.1