apprtc demo extract from webrtc source code for ios.
xcode open src/app-rtc-demo.xcodeproj and run
You can replace src/WebRTC.framework by your self build
Demo has replace https://appr.tc with https://apprtc.webrtcserver.cn", more friendly for china developer. You also can use your own server, see https://github.com/webrtc/apprtc
You can test this demo with chrome. Open the site: https://apprtc.webrtcserver.cn/ , and put the same room name to ios demo, Then you will see each other.