Sentry is an application monitoring and error tracking platform for development teams, comparable to tools such as Rollbar and Bugsnag. Its core capabilities include exception aggregation, stack trace location, alert notifications, release association, and performance monitoring, helping teams locate production issues.

The self-hosted version usually requires deployment with Docker/Compose, depends on multiple components, and has higher operations requirements and resource usage than lightweight services. Users in China should evaluate network access, notification channels, local cloud services, and integration compatibility with ecosystems such as WeChat Mini Programs and Official Accounts.