Azure Monitor is Microsoft Azure's full-stack monitoring platform, providing VM, AKS, and application metrics, log analytics, and Application Insights APM, deeply integrated with the Azure ecosystem.
AppDynamics, founded in 2008 in San Francisco and acquired by Cisco for $3.7 billion in 2017, is a leader in enterprise APM. Its Business Transaction engine directly links application performance to business processes.
Squadcast is an incident management and on-call scheduling platform founded in 2017 in India, helping SRE and DevOps teams structure alert handling with automated routing, scheduling, and postmortems.
Founded in 2015 in Stuttgart, Germany, and acquired by IBM in 2021, Instana is an automated APM and observability platform with automatic topology discovery, 100% sampling distributed tracing, and AI-driven root cause analysis for cloud-native environments.