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Head-to-head · Server Monitoring

Prometheus vs Icinga

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Prometheus #4 in Server Monitoring 9.1/10 Free plan Free plan✓ 0 of 3 features Visit Prometheus
Icinga #7 in Server Monitoring 8.8/10 Free plan · 60-day trial Free planFree trial✓ 0 of 3 features Visit Icinga

Prometheus leads on 0 checks, Icinga on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePrometheus · 9.1/10
  • Free planboth
  • Free trialonly Icinga

Prometheus scores higher on our rubric for server monitoring: 9.1 against 8.8 out of 10; our editors rank them #4 and #7.

Prometheus is the better fit for teams building metric-based monitoring stacks. Icinga is the better fit for open-source distributed monitoring.

  • Prometheus fits best

    Teams building metric-based monitoring stacks

  • Icinga fits best

    Open-source distributed monitoring

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Side by side

Feature Prometheus 9.1/10 Visit ↗ Icinga 8.8/10 Visit ↗
At a glance
Editor score 9.1 8.8
Ranking #4 in Server Monitoring #7 in Server Monitoring
Best for Teams building metric-based monitoring stacks Open-source distributed monitoring
Pricing model Free Free plan + paid
Starting price Free plan —
Free plan ✓ ✓
Free trial — 60 days
Deployment Self-hosted Self-hosted
Platforms Web, Windows, macOS, Linux Web, Linux, Windows
Support Community, Docs Email, Phone · 24/7
Integrations 8 integrations 10 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Prometheus 0/3 · Icinga 0/3
Server auto-discovery Not checked yet Not checked yet
Process monitoring Not checked yet Not checked yet
Container monitoring Not checked yet Not checked yet
Specs
Included hosts Not checked yet Not checked yet
Metric retention Not checked yet Not checked yet
Monitoring method Not checked yet Not checked yet
Supported operating systems Not checked yet Not checked yet
Our review
Pros
  • Labeled time-series model with powerful PromQL querying
  • HTTP scraping with static and service-discovery configuration
  • Rules, federation, and integrations for extensible monitoring stacks
  • Unlimited hosts and services in the Forever Free Edition
  • Agent-based and agentless monitoring across Linux and Windows
  • Strong integrations with Prometheus, Grafana, AWS, and automation tools
Cons
  • Local storage is single-node
  • Broader workflows require surrounding components
  • Uses PromQL rather than SQL for querying
  • Self-hosted deployment requires infrastructure managed by your team
  • Enterprise modules are available through a paid subscription
  • Primarily deployed on Linux, with Windows covered through agents and checks
Our verdict

Prometheus is an open-source monitoring and alerting toolkit for infrastructure, applications, and services. It collects numeric metrics as labeled, timestamped time-series data, making it a strong fit for teams building metric-based…

Read the review →

Icinga is an open-source infrastructure monitoring system for IT teams responsible for servers, networks, applications, cloud resources, containers, and virtualized environments. It monitors host and service availability, supports VMware…

Read the review →
  1. PrometheusServer Monitoring 9.1Free plan
  2. IcingaServer Monitoring 8.8Free plan · 60-day trial

Strengths and trade-offs

  • Prometheus — where it wins

    • Labeled time-series model with powerful PromQL querying
    • HTTP scraping with static and service-discovery configuration
    • Rules, federation, and integrations for extensible monitoring stacks

    Where it doesn't

    • Local storage is single-node
    • Broader workflows require surrounding components
    • Uses PromQL rather than SQL for querying

  • Icinga — where it wins

    • Unlimited hosts and services in the Forever Free Edition
    • Agent-based and agentless monitoring across Linux and Windows
    • Strong integrations with Prometheus, Grafana, AWS, and automation tools

    Where it doesn't

    • Self-hosted deployment requires infrastructure managed by your team
    • Enterprise modules are available through a paid subscription
    • Primarily deployed on Linux, with Windows covered through agents and checks

More comparisons

All server monitoring comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update