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Nagios XI vs OpServices OpMon comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Nagios XI
Ranking in IT Infrastructure Monitoring
11th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Network Monitoring Software (15th), Server Monitoring (9th), Cloud Monitoring Software (21st)
OpServices OpMon
Ranking in IT Infrastructure Monitoring
77th
Average Rating
9.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the IT Infrastructure Monitoring category, the mindshare of Nagios XI is 3.5%, up from 3.1% compared to the previous year. The mindshare of OpServices OpMon is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
IT Infrastructure Monitoring Mindshare Distribution
ProductMindshare (%)
Nagios XI3.5%
OpServices OpMon0.5%
Other96.0%
IT Infrastructure Monitoring
 

Featured Reviews

Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Simplifies setup and requires user interface enhancement
Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried. Typically, setting up a monitoring system on Linux involves cloning files from GitHub, building it, and installing many dependencies, but with Nagios XI, it wasn't like that. Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
it_user220206 - PeerSpot reviewer
Director of IT with 51-200 employees
​It offers a simple implementation of business and infrastructure dashboards but the monitoring services need improvement.
* Service group capability * Ability to monitor users experience * Simple implementation of business and infrastructure dashboards * Network traffic monitoring Also, OpMon offers: * Greater scalability * Easy to manage and implement * The ability to create business groups that generate more accurate information * It has a robust and agile architecture; and * A highly trained team that gives it a lot of credibility.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The most valuable feature of Nagios XI is customization. We can customize based on our requirements. We can do modifications and implement a lot of scripts. Additionally, it is easy to use."
"Nagios XI is stable."
"Nagios XI is an outstanding network Monitoring tool, which can be tweaked to suit any environment and it is a good solution for business looking for remarkable features at zero cost."
"It is a very stable solution and the best solution for monitoring any IT infrastructure for all companies."
"Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried."
"Nagios is my favourite open source monitoring system."
"Nagios is the best monitoring tool that I have ever worked on."
"The solution is pretty stable."
"Since we started using OpMon, we have increased our assertiveness and consequently reduced costs with fewer errors."
"As a consulting company we implement management solutions to a large variety of companies and after working with OpMon our project time was reduced and we can offer a different solution to each customer."
 

Cons

"We'd like to see more integration capabilities."
"I would like a much easier GUI so that I can delete events and logs, which will free up a lot of space."
"Adding new servers and passive checks (which require setting up agents and NRDS) on servers are a little difficult to do properly when employees don't understand the process."
"The reporting part should be made simpler. While we can obtain all the reports we need, we always have to create work-arounds to get them."
"If you are monitoring network devices, often it's not scaled for large corporations. Definitely, a minus in that area."
"The product uses the backend as Perl and could be modified to a more lightweight solution like what's being offered by other vendors."
"The product does not have SAP monitoring."
"The scalability of Nagios XI is scalable. However, it is not easy to do."
"Infrastructure and business monitoring services need improvement."
 

Pricing and Cost Advice

"It is good to contact experts for advice about what is the best solution for your specific infrastructure and enterprise."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"As it is not an agentless tool, I think it is expensive."
"Licensing costs are reasonable."
"The pricing is high with separate licensing for the product and support."
"Nagios XI is open source."
"For our country in North Africa, it's expensive and we could purchase another solution for that price. But it's a reasonable price if we're speaking in international terms."
"Nagios XI is an expensive solution."
Information not available
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Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Comms Service Provider
11%
Outsourcing Company
9%
Financial Services Firm
8%
Manufacturing Company
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business18
Midsize Enterprise21
Large Enterprise21
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What is your primary use case for Nagios XI?
I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for monitoring our server performance, including CPU, memory, data, and services ru...
Ask a question
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Comparisons

 

Also Known As

No data available
OpMon
 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Allianz, banco renner, AES Sul, Metalfrio Solutions, Mitsubishi Motors, Ciplan, Unimed, Portonave, Grupo Zaffari
Find out what your peers are saying about Nagios XI vs. OpServices OpMon and other solutions. Updated: November 2026.
921,749 professionals have used our research since 2012.