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Flowmon vs Nagios XI 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

Flowmon
Ranking in Network Monitoring Software
43rd
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
4
Ranking in other categories
Network Detection and Response (NDR) (14th)
Nagios XI
Ranking in Network Monitoring Software
14th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (10th), IT Infrastructure Monitoring (19th), Cloud Monitoring Software (21st)
 

Mindshare comparison

As of July 2025, in the Network Monitoring Software category, the mindshare of Flowmon is 0.7%, up from 0.6% compared to the previous year. The mindshare of Nagios XI is 3.2%, down from 3.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

Pifu Lin - PeerSpot reviewer
Quick identification of network issues enhances performance monitoring
We will try to Proof of Concept (POC) to a client in Taiwan. We just use the features for the Network Performance Monitor (NPM) Flowmon is more easy to understand and helps find network issues more quickly. We need this solution to monitor the network performance. We started using it three…
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.

Quotes from Members

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

Pros

"Flowmon is more easy to understand and helps find network issues more quickly."
"The solution is stable."
"The artificial intelligence and automatic detection system in Flowmon Solution are perfect for every, type of customer, such as government and commerce."
"Flowmon is more easy to understand and helps find network issues more quickly."
"It is an open platform, so in terms of integration, we are quite happy. We can integrate it with other SNMP solutions. We can also integrate it with security solutions, such as a SIEM solution."
"The solution is pretty stable."
"The alerting system is very effective."
"The most valuable feature is its support for different types of devices, where it can use all of the equipment that you need."
"The technical support is good."
"It's a monitoring agent. It's designed to do one thing. Its most valuable feature is its monitoring."
"Though I downplayed the administrative NCC GUI, this is by far the strongest aspect of the Nagios XI product."
"The solution's most valuable feature is its simplicity."
"We love Nagios XI due to the fact that JPS Web is very useful."
 

Cons

"I do not know the detailed pricing."
"The licensing price could be better."
"If there was better visualization in Flowmon Solution it would be good."
"It would be helpful to have more details about the monitoring of the infrastructure. It should have support for SNMP. This is something that is currently not there in the product."
"The GUI could be improved. It's a bit too basic, and maybe having a GraphQL interface would resolve this."
"The interface could be more user-friendly."
"They need more documentation for the plugins."
"From an alerting point of view, some graphics and metrics don't work properly with Nagios XI as they do with Checkmk."
"The reporting structure could be more streamlined."
"Improve the documentation, examples, and best practices, therefore users can understand how to do things."
"Open-source software is usually not user-friendly."
"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."
 

Pricing and Cost Advice

"The licensing fee accrues only once, but that of support is annual."
"The price of the solution could be better."
"It works with a permanent license, and then you can pay for the support. For the gold support, you need to pay yearly."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"Nagios XI is an expensive solution."
"The licensing fees for this solution are approximately $3,000 USD per year."
"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."
"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."
"Licensing costs are reasonable."
"Nagios XI is open source."
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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
17%
Financial Services Firm
11%
Manufacturing Company
10%
Educational Organization
5%
Educational Organization
14%
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Flowmon Anomaly Detection System?
I don't understand the price. I am in deployment, so I do not know the detailed pricing.
What is your primary use case for Flowmon Anomaly Detection System?
We will try to Proof of Concept (POC) to a client in Taiwan. We just use the features for the Network Performance Monitor (NPM).
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.
 

Comparisons

 

Also Known As

Flowmon Anomaly Detection System
No data available
 

Overview

 

Sample Customers

SEGA
Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Find out what your peers are saying about Flowmon vs. Nagios XI and other solutions. Updated: July 2025.
861,524 professionals have used our research since 2012.