I've been building Yieldwatch, a small tool that watches mobile game ad revenue and App Store sales automatically and flags when something looks off, so you're not the one who has to notice a dip first.
Wanted to share an update: originally Yieldwatch only supported AppLovin MAX, but a studio using AdMob with Unity Bidding for mediation reached out and said AdMob support would make it worth using for them. That's now shipped, along with App Store Connect for tracking sales revenue and units the same way.
The core thing it does: hourly or daily checks depending on the source, and when something moves, it tells you whether that looks like your problem (something on your end) or the market's, using your own history and (once enough studios are connected) real peer data.
You can now sign-up at Yieldwatch.app, I’m happy to answer any questions you have and if you wish to test it on your own data first, there’s a no sign-up demo at Yieldwatch.app/try.