QuickTime Player screen recording with audio can be performed with your iPhone and iPad, too. To do this, follow these steps:

  1. Connect your device to your Mac.

  2. Launch QuickTime and click File, then New Movie Recording.

  3. Next to the Rec button, there’s a drop-down menu. Click it and select your device for both camera and microphone input.

  4. Tap the Rec button and record your activity.

  5. Tap Stop when you’re ready.

Keep in mind that you can’t record system sound from the computer using this method.