I've built Yieldwatch — a tool for solo/small studios on AppLovin MAX that watches your ad revenue hourly and tells you whether a dip is something you caused or something market-wide, plus benchmarks your eCPM/fill rate against similar studios once enough real studios are connected.
It's past the landing-page stage now — real dashboard, real hourly syncing — but I only have my own empty AppLovin account to test against. Looking for 1-2 studios already running MAX who'd be willing to connect their account (read-only Report Key, can't touch your ad config or payouts) and be an early pilot. Free lifetime access for being first, and I'll respond to your feedback as soon as possible.
Happy to answer anything about how it works or what data it touches before anyone connects anything.