Need to record your iPhone screen? Use the Screen Recording function!
Go to Settings > Control Center > Customize Controls, then click the green plus button next to Screen Recording to add it to the Control Center.
To record your screen, follow the below steps:
Swipe up from the bottom edge of any screen to open the Control Center;
Press the circular record button in the Control Center, which will give you a 3-second countdown before beginning;
Proceed with what you'd like to record on your phone. You will see a red line at the top of the screen indicating that recording is in progress. When finished, Press the red line to stop recording:
Once stopped, the video will be saved to your library.