Firebase Crashlytics is a realtime, lightweight crash reporter who helps us to track, fix, and prioritize stability issues which destroy our app quality. Crashlytics protect us at the time of troubleshooting by intelligently grouping crashes and highlighting the circumstances which lead up to them.
Firebase Crashlytics allows developers to get clear, actionable insight into application issues. If a particular crash is impacting a lot of users, developers can easily find it out. When an issue suddenly increases in rapidity, the developers get alerts and can figure out which lines of code are causing crashes.