Application Performance Monitoring

AppDynamics

Fresh

AppDynamics (now Splunk AppDynamics) is a full-stack APM and observability platform used by platform engineers and SREs to trace distributed transactions end-to-end, correlate code-level latency with infrastructure metrics, and tie application health to business KPIs like conversion rate and revenue. It covers APM, infrastructure monitoring, real user monitoring, synthetic testing, runtime application security, and database monitoring across hybrid and on-premises environments. Acquired by Cisco in 2017 and operated under Splunk since 2024, it targets large enterprises running complex hybrid workloads where business-impact context is required alongside technical telemetry.

Atatus

Fresh

Atatus is a unified observability and application security platform bundling APM, real user monitoring, infrastructure monitoring, log management, synthetic monitoring, session replay, and SIEM under a single agent deployment. Agents cover Node.js, Java, Python, PHP, Ruby, .NET, and Go; infrastructure is instrumented via host agents with Kubernetes, Prometheus, and OpenTelemetry support. Pricing is host-based with custom quotes—no per-seat charges—positioning it against Datadog and New Relic for cost-sensitive teams that want full-stack coverage without managing multiple tools.