
Full-stack observability with APM linked to business metrics for hybrid applications
AppDynamics focuses on business-transaction monitoring and enterprise APM with deep code-level insights. Its licensing is typically per-agent and expensive. SigNoz provides equivalent transaction tracing and error monitoring through open standards, self-host options, and no per-agent fees, appealing to cost-conscious engineering teams.
Free

Application performance monitoring for developers to see errors clearer, solve issues faster.
Open source, distributed tracing platform for microservices observability

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