Also beware as most ads in your phone apps come from ad intermediaries that are either dynamic or constantly change.
Pi-Hole is a cool project but please take in consideration those two when using it. We are far from the 90's in ad-tech.
> most ads in your phone apps come from ad intermediaries
I don't know about the intermediaries you are talking about, but all the ad-ridden proprietary mobile apps that I use (the ones that don't self host ads) are blocked by DNS based ad blockers.
The one thing that these DNS based ad blockers can't do however, is block in page annoyances which is why using an extension like uBlock Origin is still necessary.
Anyway good luck with that if the app is using a mediator from a big known name as it will likely block all of their services as well.
it worked pretty well