I have been using Foqos app since a month now and it’s been amazing on my iPhone. You can create a block list of apps and when you start “Foqos” those apps will be blocked. You have to unblock before using those apps. But here is the best part. The unblocking can be configured such that it does only when you tap on a NFC tag. I spend a lot of time on the phone as soon as I wake up. So I have been blocking before sleep and keeping the NFC tag in the garage. Amazing setup for me.
This app I assume is exactly like the more mainstream Brick app but this app lets you configure any off the shelf NFC tags which you can get under $5.