My million dollar app idea-- which I can't write because the OS's won't allow it... is I'd like fine grained control over my notifications. I used to do the Pom

My million dollar app idea-- which I can't write because the OS's won't allow it... is I'd like fine grained control over my notifications. I used to do the Pomodoro thing and found it quite effective-- Id like to apply the idea to notifications as well. It would work like this: A list of firewall rules about who/what was able to send notifications. The firewall would be able to bump up or down the priority of a message, or discard them. Including rules being able to match say a regex inside the text, sender, time of day filtering. And then at some specified interval (I would use 25 mins), I get all my notifications that didn't meet the emergency criteria in the firewall. The iOS Focus mode does seem promising though.