Record iPhone's Screen and the audio with Quicktime?
You don't need any third-party service; This feature is built right into QuickTime. So just connect your iPhone to your Mac, open QuickTime, click on File > New Movie Recording (CommandOptionN), and it will show your iPhone screen. But in order to record it's audio too, click the little downward arrow next to the record button, and under "Microphone" choose "(your name)'s iPhone" (by the way if it doesn't show you your iPhone's screen make sure to select your iPhone under "Camera" too, though it should be selected by default). Then just hit record and it should do the trick.