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Nagios XI vs PRTG Enterprise Monitor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 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 Network Monitoring Software
17th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (10th), IT Infrastructure Monitoring (23rd), Cloud Monitoring Software (21st)
PRTG Enterprise Monitor
Ranking in Network Monitoring Software
39th
Average Rating
7.4
Reviews Sentiment
7.4
Number of Reviews
10
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Network Monitoring Software category, the mindshare of Nagios XI is 3.1%, down from 3.9% compared to the previous year. The mindshare of PRTG Enterprise Monitor is 0.5%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

Amir  Said - PeerSpot reviewer
Effective alerting enhances network monitoring experience with an easy setup
We love Nagios XI due to the fact that JPS Web is very useful. JPS monitors the modem and performs switching, monitoring the computer, and performing switching. We implement some applications and traffic monitoring. The alerting system is very effective. For instance, if we have an alarm on some RAM storage if the traffic is cut or dropped.
Moshiur-Rahman Khan - PeerSpot reviewer
Offers perfect real-time bandwidth monitoring and SNMP functionality
The licensing policy needs to change. The current model requires customers to purchase a minimum of two thousand licenses, which is not flexible for all customers. They should consider a more flexible licensing approach. Furthermore, alignment with customer expectations rather than offering numerous features that are not requested would be beneficial.

Quotes from Members

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

Pros

"Nagios is stable and it's easy to use the monitoring software, which is why we chose this product."
"Nagios XI is stable."
"The features I've found the most useful are the plug-ins, the fact that you can connect almost everything to it. That's very useful."
"Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried."
"The most valuable feature is the monitoring of processes."
"The solution is pretty stable."
"This is a very good solution and it is simple to use, for any company."
"Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools."
"The solution's ability to monitor each and every aspect of our devices, such as memory utilization and port connectivity, is valuable."
"PRTG is good and very easy to use."
"The product is easy to understand."
"The solution offers perfect real-time bandwidth monitoring and SNMP functionality."
"It can identify downtimes and disruptions."
"The product's most valuable feature is network analysis."
"I would recommend PRTG Enterprise Monitor to others as it works well with Android devices, and you can try the free version before purchasing."
"If an event is detected, such as a resource running low on storage or RAM, the product will notify you via email. Upon receiving the notification, action must be taken to address and resolve the issue. The feature I find most effective is its comprehensive nature. It's like having a permanent eye monitoring the network and all its nodes. Instead of manual monitoring, it detects anomalies automatically and alerts us accordingly."
 

Cons

"The scalability of Nagios XI is scalable. However, it is not easy to do."
"Open-source software is usually not user-friendly."
"It can be quite difficult to know which drivers and agents to use when setting up."
"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."
"They need more documentation for the plugins."
"The GUI could be improved."
"The way Nagios displays information isn't easy for a new user to understand. It's not intuitive enough. You need to read some tutorials or be trained to understand what it's displaying. Also, I think it needs more features to improve network visibility because there are some things you can't detect."
"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 licensing policy needs to change."
"The solution could be improved by introducing security features similar to those available in Teams, as the current version only monitors devices and does not integrate IoT or OT devices."
"They should work on minimizing false positives by sending alerts promptly and confirming errors with minimal troubleshooting requirements."
"PRTG Enterprise Monitor should include more functionalities and features that are similar to SolarWinds."
"The support must be improved."
"There could be more security features included in PRTG Enterprise Monitor."
"The solution could be improved by introducing security features similar to those available in Teams, as the current version only monitors devices and does not integrate IoT or OT devices."
"In my opinion, one area that could be improved in PRTG Enterprise Monitor is the capability to send SMS notifications. Notifications are crucial for alerting us to areas that require attention."
 

Pricing and Cost Advice

"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"Nagios XI is open source."
"The licensing fees for this solution are approximately $3,000 USD per year."
"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."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"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."
"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."
"PRTG Enterprise Monitor's pricing is reasonable."
"The pricing is $2,149 for software without maintenance, and licenses are sold in the minimum bundle of 500 interfaces."
"PRTG Enterprise Monitor is an expensive product."
"I rate the product's pricing an eight to seven out of ten."
"The solution is affordable."
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Comparison Review

it_user174738 - PeerSpot reviewer
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
Computer Software Company
13%
Financial Services Firm
11%
Manufacturing Company
9%
Government
9%
Educational Organization
14%
University
10%
Computer Software Company
9%
Healthcare Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Nagios XI?
It is an open-source platform with valuable features for performance and stability.
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 do you like most about PRTG Enterprise Monitor?
If an event is detected, such as a resource running low on storage or RAM, the product will notify you via email. Upon receiving the notification, action must be taken to address and resolve the is...
What is your experience regarding pricing and costs for PRTG Enterprise Monitor?
I have no idea about the pricing as I am not the sales person. The sales team coordinates these matters.
What needs improvement with PRTG Enterprise Monitor?
The solution could be improved by introducing security features similar to those available in Teams, as the current version only monitors devices and does not integrate IoT or OT devices.
 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Information Not Available
Find out what your peers are saying about Nagios XI vs. PRTG Enterprise Monitor and other solutions. Updated: July 2025.
865,164 professionals have used our research since 2012.