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Technology · head to head

Nagios XI vs UptimeRobot

Nagios XI logo

Nagios XI

Technology

Enterprise-grade monitoring solution with advanced visualization and reporting

From
Free
Rated
-
Full reviewWebsite
UptimeRobot logo

UptimeRobot

Technology

Uptime monitoring for hobby and non-profit projects, up to enterprise

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Nagios XI free Edition caps at 7 nodes or 100 services, whichever limit is hit first; UptimeRobot free plan is limited to a 5 minute check interval; sub-minute checking (60 seconds) requires the paid Solo plan and faster intervals (30 or 15 seconds) require Team or Scale
  • Prices and features above were last checked on 28 August 2026.

Where they differ

Only the attributes on which Nagios XI and UptimeRobot actually diverge.

Attributes where Nagios XI and UptimeRobot differ
AttributeNagios XIUptimeRobot
Pricing modelone-timefreemium

Identical on both: starting price (Free), free tier (Yes), platforms (Web), user rating (Not yet rated), category (Technology).

What people use each for

The jobs each tool is most often brought in to do.

Nagios XI

  • Monitoring servers, networks, and IoT devices for status changesnot UptimeRobot
  • Detecting infrastructure problems before they cause outagesnot UptimeRobot
  • Creating customizable dashboards for real-time IT visibilitynot UptimeRobot
  • Tracking SLA compliance and generating capacity planning reportsnot UptimeRobot

UptimeRobot

  • Freelancers monitoring personal websites and client projectsnot Nagios XI
  • Small teams managing production services and infrastructurenot Nagios XI
  • Agencies tracking high-volume client monitoring needsnot Nagios XI
  • Enterprises requiring custom compliance and SLA managementnot Nagios XI
  • Background job monitoring via heartbeat checksnot Nagios XI

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Nagios XI

  • Free Edition caps at 7 nodes or 100 services, whichever limit is hit first
  • Standard Edition is licensed per node count, starting at $2,595 for 100 nodes and rising to $14,995 for 1,000 nodes
  • Enterprise Edition, which adds capacity planning and SLA reporting, is sold as an add-on starting at $4,690 for 100 nodes on top of the base license
  • Sitewide Edition for large distributed environments has no published price and requires contacting sales

UptimeRobot

  • Free plan is limited to a 5 minute check interval; sub-minute checking (60 seconds) requires the paid Solo plan and faster intervals (30 or 15 seconds) require Team or Scale
  • Team plan includes only 3 seats; additional seats are not covered in the base $41/$35 per month price
  • Enterprise pricing and faster-than-15-second intervals are custom and require contacting sales

Pricing, plan by plan

Nagios XI

Free
  • Free EditionFree
    • 7 nodes OR 100 services limit
    • Self-supported only
  • Standard 100-Node$2595/perpetual
    • 100 nodes
    • First year includes support and upgrades
  • Standard 500-Node$8295/perpetual
    • 500 nodes
    • First year includes support and upgrades
  • Standard 1000-Node$14995/perpetual
    • 1,000 nodes
    • First year includes support and upgrades

UptimeRobot

Free

No published plan breakdown. See the UptimeRobot review.

Which should you pick?

Choose Nagios XI if

  • You want to start without paying.
Nagios XI review

Choose UptimeRobot if

  • You want to start without paying.
UptimeRobot review

Questions people ask

Is Nagios XI or UptimeRobot better?
Neither clearly leads. Nagios XI starts at Free and UptimeRobot at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Nagios XI or UptimeRobot?
Nagios XI starts at Free and UptimeRobot at Free.
Does Nagios XI or UptimeRobot run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Nagios XI for free?
Both have a free tier, so you can try either at no cost before committing.
What is Nagios XI best used for?
Nagios XI is most often used for monitoring servers, networks, and iot devices for status changes, detecting infrastructure problems before they cause outages, creating customizable dashboards for real-time it visibility, tracking sla compliance and generating capacity planning reports. Of those, monitoring servers, networks, and iot devices for status changes and detecting infrastructure problems before they cause outages are not what UptimeRobot is typically brought in for.

Answered from the vendors’ own pages

Nagios XI: What is Nagios XI's pricing model?

Nagios XI uses perpetual licensing with one-time purchase costs based on node count, ranging from $2,595 for 100 nodes to $14,995 for 1,000 nodes.

Source
UptimeRobot: What is UptimeRobot's refund policy?

UptimeRobot offers a 14-day money-back guarantee for new subscriptions and upgrades.

Source
Nagios XI: Is there a free version of Nagios XI?

Yes, Nagios XI Free Edition is available at no cost with a limit of 7 nodes or 100 services, whichever is reached first.

Source
UptimeRobot: Can I cancel my subscription anytime?

Yes. You can cancel at any time by turning off auto-renewal. Your subscription remains active until the end of the current billing cycle.

Source
Nagios XI: What is included with Nagios XI licensing?

Initial licenses include one year of free version upgrades, up to 10 support cases, and support portal access. Each license permits three installations: production, backup/failover, and testing/development.

Source
UptimeRobot: What payment methods does UptimeRobot accept?

UptimeRobot accepts major credit and debit cards (Visa, Maestro, MasterCard, Discover, Diners Club, American Express) as well as wire transfers.

Source
UptimeRobot: What are the monitor limits by plan?

Free: 50 monitors | Solo: 50 | Team: 100 | Scale: 200-500

Source
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