Resolume Forum

All the Newtek apps are for Windows only so here is a link to a great set of NDI tools by Sienna TV for OSX and iOS such as :

• NDI Cam for iPhone
  WebNDI for iPad
  NDI Source - let's you connect SDI/HDMI to NDI on Blackmagic devices (comparable to Newtek Connect)
  NDI ScanConverter - let's you broadcast video and audio for apps or OSX screens using NDI
  NDI Generator
  SDI ScanConverter - let's you broadcast video and audio for apps or OSX screens using BMD hardware

Some are free and some you have to buy but they have demos.

As a disclaimer, I have no ties with the developers!