I personally prefer ScreenZen. It is a lot less restrictive on the free version and you can just tip once to get full access instead of a subscription. It also has a system where you can “earn back” app unlocks if you don’t use the app for the full allotted time, which encourages using your apps even less rather than feeling like having to make the most of your unlock.

App Store Link: https://apps.apple.com/us/app/screenzen-screen-time-control/...