[quote='880466022, jzilske, /thread/817599?answerId=880466022#880466022, /profile/jzilske'] it's not a WebView where I suspect the traffic comes from [/quote] Ah, OK, thanks for setting my straight. [quote='880467022, jzilske, /thread/817599?answerId=880467022#880467022, /profile/jzilske'] How would I go about setting that up? [/quote] Which bit? To get the source information from mitmproxy, view the request, switch to the Detail tab, and look at the Client Connection section. Getting process information from the packet trace is a small extension of the RVI process described in Recording a Packet Trace: Set up RVI per the Set Up iOS Packet Tracing section. When you get to the tcpdump command, add the -k option to cause it to dump each packet’s metadata. And tcpdump naturally logs the port numbers in each packet, so you can look for outgoing packets whose source port matches the port number you get from the proxy. Having said that, this won’t help given your clarification that the co