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Nagios Pricing 2026

Plans, hidden costs, and cheaper alternatives compared

Is Nagios worth the price?

85/10

Nagios' pricing model, with a robust free tier and one-time purchase options for commercial versions, is quite generous compared to many subscription-based monitoring tools.

The XI Standard at $1995 offers a solid entry point for small to medium businesses, while the XI Professional at $3495 provides advanced features for larger enterprises. This model is best for organizations looking for a perpetual license rather than ongoing subscription costs.

Pricing Plans

Free Trial

Core (Free)

Free

  • Open source
  • Community support
  • Unlimited hosts

XI Standard

$1,995/one-time

  • 7 Nodes or 100 Services
  • Advanced Reporting
  • Custom Dashboards
  • Configuration Wizards

XI Professional

$3,495/one-time

  • Audit Logging
  • Bulk-Modification Tools
  • Capacity Planning
  • Automated Host Decommissioning

Hidden Costs & Gotchas

Support beyond initial purchase is extra

Plugin/integration development costs

Hardware for self-hosting

Training for complex configurations

Which Plan Do You Need?

Open-source enthusiasts

SMBs needing perpetual license

Enterprises requiring advanced IT monitoring

How Nagios Compares to Competitors

Compared to subscription models like Datadog, which can quickly accrue costs based on hosts and metrics, Nagios offers a one-time purchase for its commercial versions. While Datadog's infrastructure monitoring starts around $15/host/month, Nagios XI Standard at $1995 for 7 nodes provides a fixed cost that can be more economical in the long run for stable environments. Similarly, compared to Zabbix, which is entirely open-source and free, Nagios XI offers pre-built commercial features and support for those willing to pay a one-time fee.

Nagios Pricing FAQ

How much does Nagios cost?

Nagios starts at $1995/month on the XI Standard plan. It offers 2 paid tiers ranging from $1995/month up to $3495/month. A free plan is also available with limited features.

Does Nagios have a free plan?

Yes. Nagios offers a free plan called "Core (Free)". It includes: Open source, Community support, Unlimited hosts.

Does Nagios offer a free trial?

Yes, Nagios offers a free trial. No credit card is typically required to start the trial, though this may vary.

What is the cheapest Nagios paid plan?

The cheapest paid plan for Nagios is "XI Standard" at $1995/month. Key features include: 7 Nodes or 100 Services, Advanced Reporting, Custom Dashboards.

Is there a cheaper alternative to Nagios?

Yes. Popular alternatives to Nagios include Prometheus, Dynatrace, AppDynamics, Better Uptime. Free alternatives include Prometheus, Better Uptime, SigNoz. Compare them side-by-side on Toolradar.

Cheaper alternatives to Nagios

Direct competitors with similar features. Many offer free tiers or lower per-seat pricing.