Sentry
In plain terms
A platform for error tracking and performance monitoring.
Going deeper
Sentry captures application errors and exceptions in real time with rich context, helping developers fix issues fast. It surfaces crashes as they happen.
Under the hood
Aggregates and deduplicates errors with stack traces and breadcrumbs; adds performance monitoring.
Examples
Error tracking, exception monitoring, stack traces, crash reports, alerting.
Think of it like...
Like a black-box recorder that reports exactly what went wrong when your app crashes.