Middleware review
A low-cost option for correlating Kubernetes telemetry with application performance.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Middleware is a full-stack observability platform for engineering, DevOps, and SRE teams. It combines application performance monitoring with infrastructure visibility, distributed tracing, service health metrics, dependency maps, profiling, error detection, and root-cause analysis. Kubernetes teams can connect cluster and application telemetry while following requests across frontend and backend services. Browser and mobile real-user monitoring extends visibility beyond the cluster, making Middleware a fit for teams that want correlated application observability rather than a Kubernetes-only monitoring tool.
The pricing structure starts with Free Forever at $0 per month, including up to 100GB of data, up to 1,000 RUM sessions, unlimited users, and 14-day retention. Pay As You Go charges $0.30 per GB of metrics, logs, and traces, with usage-based pricing, default 30-day retention, SSO, and security features. Middleware also lists a BYOC plan with custom pricing, bring-your-own-cloud deployment, custom data retention, and 24x7 support. A 14-day free trial is also available. This model suits teams that want to begin without a seat-based subscription and scale around telemetry usage.
Its strongest fit is correlated troubleshooting: interactive service maps, trace-log-metric correlation, trace-based alerts, continuous application and database-query profiling, and application error analysis bring multiple signals into one workflow. Integrations include Amazon Web Services, Azure, Google Cloud Platform, Vercel, Kubernetes, Docker, Prometheus, Datadog, Grafana, Slack, PagerDuty, Jira, MySQL, PostgreSQL, and MongoDB. OpenTelemetry ingestion and collector support help connect existing instrumentation. Choose Middleware when application context, frontend visibility, and flexible deployment matter alongside Kubernetes monitoring. Teams seeking a narrowly Kubernetes-specific product may prefer a more focused alternative.
Middleware pros and cons
- Where it wins
- Free plan includes up to 100GB of data and unlimited users
- Correlates traces, logs, metrics, and frontend sessions
- Supports Kubernetes, OpenTelemetry, service maps, and profiling
- Where it doesn't
- Kubernetes monitoring is less specialized than application observability
- Usage-based costs can vary with telemetry volume
- BYOC pricing is custom rather than published
Middleware fact sheet, pricing and score →
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