What are phone restriction apps?

I keep hearing the term “phone restriction apps,” but I’m not entirely sure what distinct features fall under that category. Are these apps just for limiting screen time, or do they also block specific apps and websites completely? I’m looking for a breakdown of what these apps can actually do to help me manage my child’s device usage.

Phone restriction apps cover a lot. Yes, they handle screen time limits, but also block specific apps, filter websites, and set schedules. They can lock the device at certain times, like bedtime. I use mSpy to monitor and manage app use. It gives you the full package in one place.

Sounds good on paper, but does it really block everything? Proof?