RECORD DIRECTLY FROM YOUR IPHONE OR IPAD (IOS 11)
There was a time where you needed to jailbreak your iPhone or your iPad to be able to do this. But since iOS 11, Apple introduced a way to do this.
First, go to Settings -> Control Center -> Customize Controls on your phone than tap the “+” button next to Screen Recording.
Now open Control Center, and tap the recording button. There is a 3 seconds countdown and after that the screen starts recording (you’ll see the status bar turning to red).
To stop recording you just tap the red status bar at the top of your screen, then tap Stop. Or you can open the Control Center again and tap the (red) recording button.
Several options allow you to define the video/audio format (cannot record system audio), the framerate (on a scale, you can’t actually choose which framerate you’re using) , whether to show “taps” (a circle that highlights where the taps are done) or if the phone is used in portrait or landscape mode.
This is pretty cool. But in some instances you might still want to use QuickTime Player (see below), because you don’t want to display the red status bar (or have it displayed not “formatted” by Apple) or for frame rate reasons. That’s why at our app video agency we still use QuickTime to record iPhone screens.