Approach to creatives: from the start, I used standard creatives with before/after examples.
Set the initial bid to $0.02.
Targeting Options Applied
By Device: I set mobile phones - mobile is growing and it usually shows excellent results with push.
I checked the stats after 24 hours. Results for the day:
I collected some sources for the blacklist but decided not to hurry and sort it out in a couple of days.
I had enough creatives, so during the week, I changed the creatives three times, did some work on the blacklist, and scaled up.