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Does anyone have a clue how is Craslhytics calculating crash-free sessions? Or is this some hyper-dimensional math I'm not aware of

How can crashfree be non 100% when 0 crashes

Must be the 8 non-fatal crashes. That seems to correspond with the dates. Now why the non-fatal crashes aren't included in the «crashes» category, well, that's another question ...

you see it doesnt, you can see the dip is on the 18th, and the bar says no thing on 18th

<@U369WF1KJ> because a non-fatal isn't a crash

Sounds plausible, but also sounds like a very bad choice of words. A non-fatal car crash is still a crash, so I would expect it to be likewise for android ...

<@U369WF1KJ>  It doesn't say it's a non-fatal crash; non-fatal refers to non-fatal exception/error. Check <https://firebase.google.com/docs/crashlytics/customize-crash-reports?platform=android#log-excepts|https://firebase.google.com/docs/crashlytics/customize-crash-reports?platform=android#log-excepts>.

Fyi: the app doesn't crash / user doesnt notice when the app records a non fatal

nonfatal is just manually reported exception, whatever it is, doesnt mean system is in some terminal state

i contacted support. and they said the number is calcilated via analytics, not via crashlytics recorded crashes :man-shrugging:

so they can get out of sync