I can see some application crashes reported in Crashes & ANRs section in my Google Play developer console. I can view the stack trace of the crashes there.
What I want to know is, does android always collect data about crashes or does the user need to manually report the crash, for me to be able to view the crash report in developer console? I have seen several apps crash on my device, but I cannot remember that I was asked for a confirmation to report the issue.