Operating Systems Have Built-in Parental Controls.
For instance, iOS lets a parent restrict certain apps, content types and ratings, device functions (like deleting apps), privacy settings, cellular data usage, and more.
Windows 10 allows parents to create separate accounts for kids & monitor their usage activity, internet activity and browsing history, and set time limits for accessing the system. You can also set it to block any website or app you specify, purchase and spending limits, and give them selected privileges to access the system. You can also access your child’s email account and add it to the parental control settings.