SmartFoxServer supports audio/video streaming through a third-party product called Red5 Media Server. We also provide an high level API (the RedBox, described here:
http://www.smartfoxserver.com/products/redbox) which provides pre-built classes for common usage scenarios and the integration with SmartFoxServer.
The RedBox is available for Flash only because Red5 makes use of the standard Flash API for audio/video streaming. Flash can be used to develop native games and apps for iOS/Android devices too, but we never tested if an audio/video streaming app can be exported to those platforms. Someone reported in our forums they were trying to do it, but they encountered some issues:
viewtopic.php?f=24&t=16399Wrapping up, if you are developing the iOS app through Unity, the RedBox won't work and you will need to look for another a/v streaming solution to use side-by-side with SmartFoxServer, which can still handle the gaming part.
Or maybe you could search the Red5 resources websites to look for Unity compatible API.