If you want to capture video from your iPhone or iPad screen, you do not need a third-party app from the App Store. The ability to record activity on your screen is built into iOS and iPadOS via a feature called Screen Capture.
By adding Screen Capture to the Control Panel, you can start recording your screen and then take separate screenshots of the video. This tool makes capturing your iPhone or iPad screen activity much easier than running through a third-party program. Let's give it a try.