Parental monitoring options for iPhone

This is what Apple offers:

Use parental controls on your child's iPhone, iPad, and iPod touch - Apple Support

You might also want to contact your carrier and see what options they offer. Most U.S. carriers offer parental control features at a monthly fee.

I would avoid any of those programs that you see on line that say they give you access. Either the 1) require you to jailbreak the phone (removing all Apple's security features, making the phone more vulnerable), or 2) they require you to give them your Apple ID and passcode (security risk) or 3) they don't actually work.

Screen-time. What sort of monitoring did you have in my? Ta

https://support.apple.com/en-gb/HT201084

That is very restrictive. And I not sure of the legality of using such apps. Not allowed in my country anyhow. Trust to me is a two way street. Kids will be kids. Ta