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Nagios XI vs Pandora FMS vs Zabbix comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Mindshare comparison

As of April 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.4%, down from 3.3% compared to the previous year. The mindshare of Pandora FMS is 0.6%, up from 0.4% compared to the previous year. The mindshare of Zabbix is 5.0%, down from 12.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Zabbix5.0%
Nagios XI2.4%
Pandora FMS0.6%
Other92.0%
Network Monitoring Software
 

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.
MM
Independent Consultant at Maack Consulting
The open architecture is easy to extend and enhance
Pandora could deliver better analytics out of the box. You can work around these limitations with the help of other tools like Grafana. The shortcomings are mostly on the graphical side. The built-in report generators are a bit limited in some areas. They could improve their management console's ability to monitor large environments could be improved. For example, SNMP management is only partially integrated into the management console.
KamranBhatti - PeerSpot reviewer
Network Engineer at a computer software company with 11-50 employees
Helps reduce response time but has room to improve customization complexity
We are not working on simple standalone solutions like Kaspersky DDoS Protection or Hybrid Cloud Security. Once you understand Zabbix, then it is easy to customize those web pages and graphs for our customer use. It is fully automated to your requirements. Zabbix is working fine with no issues, and I am satisfied with it. We have combined Zabbix and SolarWinds. The integration works fine, and it is easy to integrate Zabbix with the IT environment. We were trying to purchase MDR (Managed Detection and Response), but we are not working on that. I don't have real experience with MDR. We are using Falcon software for that. We are working with Falcon Complete, not with Sandbox. We are not using Kaspersky for business or cloud protection. For that, we are using Zabbix CrowdStrike Falcon Complete solution. I have given this review an overall rating of 8.

Quotes from Members

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

Pros

"I would recommend this solution because it's so powerful with no limitation, especially when using the XI version."
"This is a very good solution and it is simple to use, for any company."
"Nagios is an open source monitoring tool for monitoring network services, with easy installation, a user-friendly and configurable interface, and the ability to monitor disk space, CPU utilization, memory usage, host availability, NFS availability and many other things, making it widely used in IT markets."
"Nagios is stable and it's easy to use the monitoring software, which is why we chose this product."
"Nagios allows us to configure any device so that we can send pager alerts when people don't have access to emails, and it also allows us to schedule downtime and maintenance."
"Nagios XI allows my customer to monitor literally thousands of network and computing endpoints (both hardware and software) in real time, including custom derived SNMP polling and traps."
"Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools."
"It provides an easy and powerful solution to network monitoring so I can pay attention to other concerns."
"Pandora's architecture is interesting. It's open so you can easily extend and enhance it. It's simpler to customize Pandora compared to other solutions. It's also scalable enough to support large environments."
"Pandora FMS provides us with a general report (graphical) about all of the connected devices, which helps with planning new stations and tracking them."
"What I value most about Pandora FMS is the simplicity of working with it."
"It is easy to create your own custom modules if you just know a little bit of scripting. If you have unique requirements, you can just make your own modules. You can even grab checks from other vendors. There are open-source checks for various things such as SMTP, etc. There is a long list of different ones from Nagios. You can just use them, and within seconds, you get yourself a check that is monitoring whatever you need. It is really flexible. I guess that's why they call it Pandora Flexible Monitoring System (FMS). It is reliable. It does the job, and it alerts. It is also surprisingly feature-rich. Our network guy just recently asked about a particular protocol to monitor the bandwidth on the network, which is not a common protocol. When I looked it up, and I found that they cover it. It is very mature for a not-so-known product."
"Thanks to this software and to the work of the support team, we have everything under control."
"Pandora FMS is an all-in-one solution that is cost-efficient."
"Thanks to this software and to the work of the support team, we have everything under control."
"Thanks to its flexibility, I have been able to adapt the tool to our servers and find out quickly how their console works."
"We detect problems before the customer does and before it actually happens using the predictive functions in Zabbix."
"It meets my organizational needs. It's pretty easy to use."
"The basic setup is very easy."
"The monitoring capabilities of the product are excellent."
"The template system in Zabbix is very beneficial as it saves time in configuration."
"With Zabbix, you receive a free enterprise-class monitoring solution, as long as you know how to use it."
"It not only provides the preconfigured item monitoring feature, but it is also easy to configure custom items."
"We are able to do problem determination on runaway processes."
 

Cons

"Nagios XI can improve network and hardware monitoring, these parameters should be simplified to allow usage for monitoring. Additionally, if there was automatic reporting it would be helpful."
"It is really difficult to integrate Nagios XI with another system to generate logs and alert our management of failures in security infrastructure."
"The Configuration Wizard needs improvement, because not all vendors are present."
"The installation and monitoring need improvement."
"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."
"Backup mechanisms and some kind of templating system for dashboards are needed."
"However, it is a bit complex and difficult for a first-time user."
"While the UI is functional, I have always thought there was room for improvement here."
"In the future, we may have double the number of devices, and we do not want to have any issues with performance in the data display."
"The product lacks APIs for integration with other systems."
"Pandora could deliver better analytics out of the box. You can work around these limitations with the help of other tools like Grafana. The shortcomings are mostly on the graphical side. The built-in report generators are a bit limited in some areas."
"I think some improvements to the Android app would be good."
"When it comes to the definition of local Software Agents for the first time in the open-source version, it can become very tedious."
"I think some improvements to the Android app would be good."
"I find that this software is resource heavy, and demands a lot of processing capacity."
"They can also do more refinement in end-user usability because not everyone is strong technically, and people who aren't strong technically might be averse to the product, even though it has come a long way."
"For our company, it is not scalable."
"I'm using the free version of Zabbix, and I'd like to see more customization options, especially for setting trigger thresholds."
"For us, the initial setup was complex."
"The low discovery functionality is still very young so this feature has a lot of room for improvement."
"I had problems using Zabbix when working with SUSE Enterprise; many companies use SUSE."
"The dashboard and the graph section could be a little bit more professional."
"Implementation is always tailored to the customer and the kind of information we need from the client to carry it out can make them very uncomfortable. Sometimes the clients are not ready to share it."
"When it comes to Zabbix flow, I would not be comfortable working with Zabbix as there's a bit of a lack on the reporting and automation front."
 

Pricing and Cost Advice

"The licensing fees for this solution are approximately $3,000 USD per year."
"Licensing costs are reasonable."
"For the cost of the commercial product and support, and taking into account the open source characteristics of it, I believe it is difficult to a better value."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
"We are using the free version of this solution."
"As it is not an agentless tool, I think it is expensive."
"This solution is very expensive, at approximately $5,000 USD when I purchased it, which is why I haven't upgraded my version in several years."
"Nagios XI is open source."
"The open-source version offers 100% functionality and the hardware requirements for a solution like this one are very modest."
"In terms of money, the Enterprise version is the cheapest that I have found after a market study."
"You get the license and it includes updates, new versions, and access to the complete library of modules."
"They are very competitive on the pricing side. That's one reason why my manager keeps using it."
"Pandora FMS is easy to implement and the pricing of licenses is competitive."
"My rule of thumb would be that if you need more than thirty agents, and you lack an automation tool such as Chef or Puppet, you will save a lot of time and money going to the Enterprise edition."
"Only one payment and it includes support, updates, new versions, and access to the complete library of plugins except for SAP and z/OS."
"The Open Source Community Edition is great to just explore the software, or use it on medium-sized infrastructures."
"It's an open-source solution that can be used free of charge."
"My manager is very happy because it doesn't cost anything."
"There is no license but we need to pay for support."
"It is worth every cent to pay or even study to do your own installation."
"I use the tool's free version."
"It's free software released under the GNU/GPL license."
"The solution is free. However, many open-sourced tools start out free but eventually start charging."
"We are using the free, open-source version."
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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
Financial Services Firm
9%
Computer Software Company
9%
Manufacturing Company
7%
Government
6%
Comms Service Provider
13%
Construction Company
12%
Outsourcing Company
9%
Manufacturing Company
7%
Computer Software Company
11%
Financial Services Firm
9%
Comms Service Provider
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise4
Large Enterprise3
By reviewers
Company SizeCount
Small Business56
Midsize Enterprise23
Large Enterprise34
 

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 mon...
Ask a question
Earn 20 points
What do you like most about Zabbix?
The template system in Zabbix is very beneficial as it saves time in configuration.
What is your experience regarding pricing and costs for Zabbix?
I think Zabbix is economical, whereas SolarWinds is expensive. SolarWinds has a lot of secure features, but Zabbix is...
What needs improvement with Zabbix?
The potential and customization is a little difficult because you have to learn scripts. I think Zabbix needs to impr...
 

Comparisons

 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Rakuten, Prosegur, Repsol, Teléfonica, Allianz, Ottawa Hospital, Hughes
1. IBM 2. Dell 3. Cisco 4. HP 5. Oracle 6. Microsoft 7. Amazon 8. Google 9. Facebook 10. Twitter 11. LinkedIn 12. Netflix 13. Adobe 14. VMware 15. Salesforce 16. SAP 17. Intel 18. AT&T 19. Verizon 20. T-Mobile 21. Vodafone 22. Ericsson 23. Nokia 24. Siemens 25. General Electric 26. Honeywell 27. Philips 28. Sony 29. Samsung 30. LG 31. Panasonic 32. Toshiba
Find out what your peers are saying about Zabbix, Auvik, Datadog and others in Network Monitoring Software. Updated: March 2026.
885,444 professionals have used our research since 2012.