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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
16th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (9th), IT Infrastructure Monitoring (11th), Cloud Monitoring Software (22nd)
PRTG Enterprise Monitor
Ranking in Network Monitoring Software
29th
Average Rating
7.4
Reviews Sentiment
6.6
Number of Reviews
11
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.5%, down from 3.1% compared to the previous year. The mindshare of PRTG Enterprise Monitor is 0.5%, down from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios XI2.5%
PRTG Enterprise Monitor0.5%
Other97.0%
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.
Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Proactive monitoring has reduced network downtime and enables rapid incident response
The main benefits PRTG Enterprise Monitor provides for us include helping us respond quickly to network problems. For our virtualization switches, we normally use a different vendor, but I am not in charge of that particular system. I have not really used the pre-configured sensors feature in PRTG. A different team handles reporting. For now, nothing really comes to mind regarding additional functions for PRTG. I think it is good for what we use it for. I cannot really say much about technical support because I have never had a situation where I have to reach out. I would give PRTG Enterprise Monitor a final rating of eight. I would definitely recommend PRTG Enterprise Monitor to other users. I am an end user of the product. I am quite satisfied with the alerting part of PRTG, as it is quite good.

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 features of Nagios XI are you can customize it based on your use case and requirements, it is flexible and easy to integrate with our systems, and you can customize the solution by adding additional features using code."
"Since the cost is zero and it can use a fairly cheap server to run on the ROI is nearly immediate."
"Nagios has good scalability."
"The technical support is good."
"Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools."
"It's very easy to install it and manage it with Nagios XI's interface."
"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."
"We love Nagios XI due to the fact that JPS Web is very useful."
"It can identify downtimes and disruptions."
"It provides a vast array of options for dashboard creation and monitoring of the activities within the environment."
"I would recommend PRTG Enterprise Monitor to others as it works well with Android devices, and you can try the free version before purchasing."
"The product is easy to understand."
"The product is easy to use and you don't need to have any training. You can use it even if you don't have an IT background."
"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."
"The product's most valuable feature is network analysis."
"The solution's ability to monitor each and every aspect of our devices, such as memory utilization and port connectivity, is valuable."
 

Cons

"There's room for improvement in the visibility, and in the ability to extract information. Stuff like this should be more simple."
"The web interface is perfectly fit for purpose but isn't up there with the best modern admin panels."
"If you are monitoring network devices, often it's not scaled for large corporations. Definitely, a minus in that area."
"WebUI should be improved (visual aspect) and should incorporate non-relational databases."
"Backup mechanisms and some kind of templating system for dashboards are needed."
"This solution would be improved with the inclusion of additional services. Monitoring streaming services is an example of something that is not currently supported, so in order to handle this, I would have to write a script."
"The NCC does have issues where it locks up or an admin cannot be sure if the system configuration was exact."
"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 licensing policy needs to change."
"The support must be improved."
"Regarding the pricing aspect, we used to pay 5,000 dollars for PRTG Enterprise Monitor. Given that we scaled it up and there's a new pricing model, it increased to 14,000 dollars."
"When it comes to dashboard customization in PRTG Enterprise Monitor, there are not too many options, and I think that would not be a strong point for PRTG, but for our use cases, we do not really need that kind of customization."
"There is no unified monitoring in PRTG. It needs a lot of improvement in terms of integration."
"They should work on minimizing false positives by sending alerts promptly and confirming errors with minimal troubleshooting requirements."
"There could be more security features included in PRTG Enterprise Monitor."
"The solution could be improved by including a processing monitor, possibly with a language interface like Lua, allowing for writing custom sensors and processing outcomes of inputs."
 

Pricing and Cost Advice

"The pricing is high with separate licensing for the product and support."
"It is good to contact experts for advice about what is the best solution for your specific infrastructure and enterprise."
"As it is not an agentless tool, I think it is expensive."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"Nagios XI is open source."
"Licensing costs are reasonable."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
"Nagios XI is an expensive solution."
"PRTG Enterprise Monitor is an expensive product."
"PRTG Enterprise Monitor's pricing is reasonable."
"The solution is affordable."
"I rate the product's pricing an eight to seven out of ten."
"The pricing is $2,149 for software without maintenance, and licenses are sold in the minimum bundle of 500 interfaces."
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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%
Construction Company
8%
Comms Service Provider
7%
Manufacturing Company
7%
Healthcare Company
11%
Educational Organization
9%
Comms Service Provider
9%
University
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 Business7
Midsize Enterprise2
Large Enterprise2
 

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 runnin...
What is your experience regarding pricing and costs for PRTG Enterprise Monitor?
I would rate the pricing of PRTG Enterprise Monitor maybe a six. I think a six is fine, as it is reasonable and not expensive.
What needs improvement with PRTG Enterprise Monitor?
When it comes to dashboard customization in PRTG Enterprise Monitor, there are not too many options, and I think that would not be a strong point for PRTG, but for our use cases, we do not really n...
What is your primary use case for PRTG Enterprise Monitor?
I mainly use PRTG Enterprise Monitor for network infrastructure monitoring. I am currently working as a Network and Security Engineer.
 

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: August 2026.
909,701 professionals have used our research since 2012.