I have 4 kids. I had a kid-management app running at home for a while.

It assigned chores in a rotation, including periodic chores like cleaning out the fridge which didn't need to happen every day. The kid interface had a simple green button they could click to say they'd done their chore.

When THAT happened, their fake bank allowance balance would increase.

The server side piece would track how long they were logged in and lock their screen after 30 minutes of screen time a day

The parent side included a form to track spending (decreasing their balance) and to enable and disable their user accounts on the computer. It could also grant additional screen time if needed.

The kids are older now and like hoarding cash instead of a balance, and they aren't as motivated by screen time as they used to be. So the app is no longer in use.