How to debug: Android app crashes on start

Questions & Answers
1

As per the title, i am looking for suggestions/advice on how to work out whats going wrong with an app that works on Unity remote and the editor but crashes when i open the apk right after the Unity logo.
I hooked up logcat but do not see any errors. I wonder if i am not using the right filters? My game name is Amaze so i use this:

adb logcat ActivityManager:I Amaze:D
*:S

The only message i thought might be of use is this one:

app died, no saved state
However, i could not find anything on Google suggesting what it might be.

2

Is there any message from a system starting right before the crash? This system might crash the app without a proper warning. We had this problem once and after a really long search through the stacktrace my collegue found it was the payment system crashing the app. Maybe you can look into that.