
Application performance monitoring for developers to see errors clearer, solve issues faster.
Sentry is popular for error tracking and session replays with developer-friendly workflows. It covers only part of the observability stack. SigNoz adds full distributed tracing, metrics, and logs in the same OpenTelemetry-native platform while keeping error monitoring and alerts without separate tool sprawl.
Free

Full-stack observability with APM linked to business metrics for hybrid applications
Open source, distributed tracing platform for microservices observability

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