For this particular exploit, it's not really because "iOS apps are truly sandboxed", it's because iOS is more restrictive with background activity, so you you can't keep a server running in the background. If your app is in the foreground it can create a listen socket just like in android.
For this particular exploit, it's not really because "iOS apps are truly sandboxed", it's because iOS is more restrictive with background activity, so you you can't keep a server running in the background. If your app is in the foreground it can create a listen socket just like in android.