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Nagios Fusion vs PRTG Network Monitor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

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 Fusion
Ranking in IT Infrastructure Monitoring
71st
Average Rating
8.2
Reviews Sentiment
7.8
Number of Reviews
4
Ranking in other categories
No ranking in other categories
PRTG Network Monitor
Ranking in IT Infrastructure Monitoring
4th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
113
Ranking in other categories
Network Monitoring Software (5th), Cloud Monitoring Software (9th)
 

Mindshare comparison

As of July 2026, in the IT Infrastructure Monitoring category, the mindshare of Nagios Fusion is 0.5%, up from 0.3% compared to the previous year. The mindshare of PRTG Network Monitor is 3.3%, down from 4.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
IT Infrastructure Monitoring Mindshare Distribution
ProductMindshare (%)
PRTG Network Monitor3.3%
Nagios Fusion0.5%
Other96.2%
IT Infrastructure Monitoring
 

Featured Reviews

SI
Operation Director at Digital Pulse Sdn Bhd
A suitable choice for unified and efficient infrastructure monitoring across diverse environments providing user-friendly GUI, cost-effectiveness, and versatility
We use it for this specific client, they've deployed multiple instances of it across various locations to facilitate monitoring. To effectively monitor their infrastructure, it seems necessary to implement additional monitoring solutions for all three types of devices they have Nagios Fusion…
madhan kumar hs - PeerSpot reviewer
software engineer at Capgemini
Alerting precision has reduced incident response times and improved department-level network visibility
The auto-pause sensor during the maintenance window is good without any false alerts, and it prevents me from getting flooded with alerts during planned maintenance, helping department heads understand their own network usage better. It has reduced incident response time by giving clearer ownership of each alert, ensuring alerts go to the proper recipient. SNMP testers and auto-pause are among the best features of PRTG Network Monitor, which is particularly useful for different departments such as HR and finance, where alerts can be filtered accordingly. The alerting features and dashboard of PRTG Network Monitor are very helpful, especially in our industry. However, the dashboard can look cluttered on smaller screens, which is one negative aspect. PRTG Network Monitor has impacted us positively; we have stopped getting flooded with alerts during planned maintenance or unplanned outages. Compared to others, this gives specific alerts very quickly and helps department heads understand their own network usage better, thus reducing incident response time so that each alert has clear ownership.

Quotes from Members

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

Pros

"Being open source lets us customize it for our monitoring needs, saving us money."
"It is easier for client installation, and the configurations are doable even for a newcomer in the field."
"It's very easy to manage and monitor it."
"Nagios Fusion version 12.8 excels in user-friendly GUI design, cost-effectiveness, and ease of deployment."
"For others who are interested in using this solution, I would recommend it; please use it, it's good, it's very friendly, easy to use, and it's web-based, which means you don't have to be logged into a server to get something done."
"The solution provides us response times to issues."
"If someone were looking for a basic monitoring tool for servers and networks, I would recommend PRTG Network Monitor."
"The alerting is the most valuable feature. I also like the iPhone app. I get alerts in an email on the iPhone app."
"We have asked questions of their technical support and they have a very good response time."
"You should absolutely look at this solution; it gives us everything that we need: the lightweight aspect of it on the network and the amount of information, and it's absolutely worth the money."
"The product is easy to use and the web interface is fantastic."
"We've managed to cut down on our P1 escalations by around about 70 percent."
 

Cons

"There are some bugs, although not that many. There are some situations where the solution is not stable but the number of problems is not very high."
"In future iterations of this solution, there is a desire for more seamless integration with other monitoring software."
"Adding application performance monitoring to the product alongside infrastructure monitoring would make it a more complete and useful solution."
"Nagios Fusion should include a 'remember me' option when logging in, so we don't need to enter a username and password every time."
"They should work on syncing the solution with Gmail."
"More training videos for installing and configuring PRTG Network Monitor would have been nice, especially when working with a lot of devices."
"I am not sure the solution is giving me all the needed feedback that we need. When something goes off on our IT infrastructure, it does tell me. However, it would be nice if it gave more intuitive information, e.g., the hard drive has gone up by 60 percent in an hour."
"PRTG Network Monitor can be improved because the dashboard themes feel outdated."
"In our organization, we encounter performance issues with our PRTG probe service. I saw documentation from the vendor or Paessler mentioning that there are limitations for WMI sensors. Other than that, we are okay with PRTG."
"PRTG Network Monitor needs to show bandwidth utilization in proper graphs. It isn't easy to learn."
"There seems to be a big jump from the basic scan to the really thorough scan."
"There is room for improvement in this solution for the performance and third-party monitoring protocols. They need to be updated to the latest ones."
 

Pricing and Cost Advice

"The pricing is quite reasonable, especially when compared to the broader market."
"We pay for a perpetual license and we have a support fee."
"I would like better pricing models for smaller businesses. The free version is fantastic, but it's too restrictive. If they could just get up to 200 sensors for a reasonable fee for on-premise, I would give PRTG my credit card right now."
"There is a license to use PRTG Network Monitor and it is annually."
"We've got the unlimited package... I believe it was around the £15,000 per year mark."
"It's a cost-efficient tool."
"We are licensed for 2500 endpoints."
"The pricing is very low compared to other solutions."
"Licenses are very expensive, so I would like to see cheaper licensing."
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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
12%
Construction Company
12%
University
8%
Marketing Services Firm
8%
Financial Services Firm
10%
Comms Service Provider
8%
Computer Software Company
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business60
Midsize Enterprise19
Large Enterprise50
 

Questions from the Community

Ask a question
Earn 20 points
What is the best network monitoring software for large enterprises?
PRTG network monitor is one of the best tool i have ever used for the monitoring. It have auto discovery option. it avoid the configuring the device in PRTG. It automatically discover the device an...
What is your experience regarding pricing and costs for PRTG Network Monitor?
The pricing was higher at the beginning, but the recurring licensing cost is affordable and reasonable. Overall, the pricing, setup cost, and licensing is fair for our industry. They have quoted us...
What needs improvement with PRTG Network Monitor?
The reporting features look very technical and that can be improved. If they can change the report so everyone can understand it, that would be helpful.
 

Overview

 

Sample Customers

NuBlue, St.Elisabeth Hospital, Akamit Systems, National Radio Astronomy Observatory, ValueClick, Sunrise Banks
Jameson Bank, Sidnix, RungeICT, MedicalAnimal, Truck-lite, GamingGrids, The Covell Group, Forsythn County Schools, NetMass, Musgrove Park Hospital, Lanes Health, Columbia Southern University, Vodafone, Intrust Bank
Find out what your peers are saying about Nagios Fusion vs. PRTG Network Monitor and other solutions. Updated: June 2026.
902,988 professionals have used our research since 2012.