Free Engineering Workbench calculator
Mobile app stability and performance
Track crash-free users and sessions, ANR rate, startup time, size and store rating for a release.
Quality & testingHow it's worked out
- Crash-free = 1 − (crashed ÷ total), for sessions and users. ANR rate = ANR events ÷ sessions
- Counts from the crash reporter for one release and period
NoteMany teams aim for 99.9% crash-free sessions and 99.5% crash-free users or better. Track per release: a drop right after release points to the release.
Source: Firebase Crashlytics and Google Play Android vitals definitions
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