I have searched all over Apple's help and documentation I can't find any built in or app store apps that provide screen recording.
What prevents such an app to exist ? Are there any obvious technical reasons?
IOS – What prevents iOS and iPhone/iPad/iPod Touch from having an official screen recorder
applicationsios
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Best Answer
The technical reason no store app has screen recording is simply that no official API is provided from Apple to developers to perform screen recording.
The hardware is clearly capable of snapping still frames and storing / processing a video feed of the screen's size, so it's probably not a purely technical reason why it's currently not a feature of the OS.