thanks, good luck!
I dont buy source code yet, i use appbrain and play store for niche research.
Yep, bro, i have already launched 3 apps and currently growing them. Oh yeah, exactly. I will test better source codes, and if admob works, i will take it easy on my advertising which will increase retention and ratings, which will make the installs go faster. And when i have multiple working apps, i will optimize the monetization and experiment with blackhat stuff. Will also push paid traffic and experiment with different niches, which might be way better than this one. Diamond niches
Most apps can be reversed, technically all apps. But some apps are heavily obfuscated and take lots of time, the big apps such as Facebook have custom obfuscation but i know a person who has managed to reverse all the famous apps actually, i plan to try to release them when my business is more stable and i have time. Haha, fun fact, i am planning to reverse a very famous app as gift for a girlfriend now.

I hear Unity's IL2CPP is impossible to reverse, but my guess is it will be cracked in the coming years.
I think its possible to rank games with aso and some investment in reviews and initial installs. I have seen it work in some niches and i am very eager to try it.
Alright, thanks I will let u know if I need any help
UPDATE
Ecpm decreased by 15% ~ 0.4$, meanwhile ecpm at the smaller app at 500-1k/day installs is at 0.85$.
Earnings have decreased to
470$ yesterday. Hopefuly it will pick up and the traffic increase including from other apps will keep the increase