Hi,
Yes the Screen Time API frameworks provide the capability to provide screen time management for personal as well as guardian control.
Parental control was introduced first: https://developer.apple.com/videos/play/wwdc2021/10123/
Personal control was introduced next year: https://developer.apple.com/videos/play/wwdc2022/110336/
Managed Settings (https://developer.apple.com/documentation/ManagedSettings)
Family Controls (https://developer.apple.com/documentation/familycontrols/)
Device Activity (https://developer.apple.com/documentation/deviceactivity/)
milydahlke
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