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ITRS Geneos vs Nagios Core comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 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

ITRS Geneos
Ranking in Network Monitoring Software
64th
Ranking in IT Infrastructure Monitoring
45th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
57
Ranking in other categories
Application Performance Monitoring (APM) and Observability (34th)
Nagios Core
Ranking in Network Monitoring Software
10th
Ranking in IT Infrastructure Monitoring
10th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
51
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Network Monitoring Software category, the mindshare of ITRS Geneos is 0.6%, down from 0.6% compared to the previous year. The mindshare of Nagios Core is 1.9%, down from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.9%
ITRS Geneos0.6%
Other97.5%
Network Monitoring Software
 

Featured Reviews

DeepakR - PeerSpot reviewer
Site Reliability Engineer(Observability) at Sapiens
If one server fails, the agent will automatically be reinstalled
ITRS Geneos is a legacy system. It predicts or provides proactive measures once an issue is resolved. It doesn't offer any predictive capabilities or root cause analysis. They throw a lot of data if there's a 90% error. You need to check which process is consuming more CPU and determine the root cause for yourself. You need to troubleshoot it manually. This legacy system could introduce predictive analysis and root cause identification. They are reluctant to switch to newer solutions, which may require writing queries to fetch data. Manually logging into servers, checking CPU usage, identifying processes, and determining root causes is time-consuming. Once the root cause is identified, the issue can be resolved efficiently. The manual troubleshooting process is time-consuming. The content is not openly available in the market. If you search for it somewhere, it is not readily accessible. If you want to try it out, no trial version is available. Therefore, it will be challenging to learn. Loading ITRS is difficult, as you need to purchase it first. Secondly, only a few people are knowledgeable about ITRS in the market, making it challenging to find resources. Thirdly, the documentation must be well-documented, making finding content or training material hard. The UI also needs to be updated, which adds to the difficulty.
HY
Senior System Administrator at Interactive Group
Monitoring solution provides comprehensive visibility across IT infrastructure
The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.

Quotes from Members

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

Pros

"One of the best aspects of Geneos is that it has a broad scope and can cover a lot of use cases. You can write your own scripts to monitor really specific things. And the rules that you can put in place can be quite complex for the alerts."
"The ability to completely tailor and customize what it's monitoring is one of its strongest points. A lot of other monitoring tools are good at certain things, but one of my colleagues described it as the “Swiss Army Knife” of monitoring tools. It can do anything you want."
"This solution has helped provide relief to existing Level 2 teams, allowing them to focus efforts on in-depth problem analysis."
"I always appreciate Geneos's stability and ease of use."
"Real-time log monitoring with desktop alerts is valuable as it tells us immediately when there is an issue."
"The solution's log monitoring and alerting mechanisms are very user-friendly and easy to plug and play."
"This tool allows one to analyse, integrate and customize as per the systems and allows you to set your own rules."
"One of the most valuable features of ITRS Geneos is the active time feature that helps with the trading applications that I support."
"Dashboard provides monitor of total assets."
"I like that it's very simple to install, easy to manage and deploy, and easy to use for monitoring."
"Nagios Core is very configurable. Whatever you want, you can do it."
"Our customers like that Nagios Core is an open source solution. It can be customized to our customers' specific needs."
"Nagios monitors our servers, so we know if anything goes wrong and can solve the problem before it happens."
"The notifications are definitely one of the most valuable features of Nagios Core. We know what to look for and what to expect when things are down."
"I like the way the solution sends alerts and how it keeps on escalating them."
"The good thing about Nagios Core is it covers everything."
 

Cons

"ITRS Geneos is not on the cloud at a time when everyone is moving to the cloud."
"I would also like to see suggested guidelines to accomplish a monitoring task. The issue is that ITRS is so flexible that there is more than one way to complete a task, each with benefits and disadvantages."
"The dashboard feature is full of bugs. Grouping items results in a distorted dashboard."
"They have the Webslinger solution where you can see when something is alerting. It's a little bit cumbersome."
"At the moment Geneos is excellent and handling real time monitoring, however not great at doing historical reporting."
"There is a part of the rules for monitoring alerts. I want to understand more about how to choose the samples and the requirements for the rules. That is the part that I want to understand better and get better training for."
"We all look at the same things - CPU, disk space, paging stats, service status with RAG status on each. That could be provided straight out, saving significant time."
"Data visualization – real time and historical – is a weakness."
"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."
"It would be nice if the company offered a sales or contract manager that was dedicated to our company so that we would have some sort of link to Nagios, and if we had issues or questions, we'd be able to contact them directly."
"It is a bit slow due to latency."
"Cloud monitoring is an area for improvement because there aren't too many plugins available."
"Nagios Core is limited in terms of distributed setups, and there is no central view for remote data centers."
"Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does."
"Nagios Core does not have a graphic display."
"Making it a little easier to configure and set up from the start would help. There are multiple layers that you have to wade through to be able to set it up, to do it the right way, and to get it to do what you want it to do."
 

Pricing and Cost Advice

"Its price is reasonable. It isn't too expensive, and it isn't too cheap, but it also depends on a company's volume and negotiation."
"The market tools are on par with this solution, but if the solution included more features, then it would be well within the range for the cost."
"The pricing is fairly market-related. They have been very lenient because we have been working with them for so long. An example is that we're currently migrating some of our services to AWS, and they've given us a grace period for some of the things to help with the migration and not to grow additional costs while we are migrating, but it's still on par with the market."
"Pricing and licensing is based on the requirements."
"You will get the best price if you get a single global deal."
"It is expensive. They have to look at the model around when we move to cloud and how that's going to work. The licensing cost does pay off because of the improvements in support to our business."
"Based on feedback from colleagues and friends working in the financial sector, Geneos is relatively costly. Many companies have been switching from Geneos to Dynatrace, Sysdig, or other monitoring tools in the past two years because of the price."
"When I first came in, their pricing was very high. ITRS had a high expectation of what their price should be based on perceived value. I think they have been realizing, more recently, that there are other competitors, so their pricing is a lot better. Licensing for on-premise is okay, however I feel there is quite some work to be done for cloud and containers. We're still working with them to try and work out what that pricing should look like."
"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."
"The enterprise version has technical support. The version we are using is free."
"It's free."
"The solution is expensive."
"Nagios Core is free to use."
"I would rate the solution's pricing an eight out of ten."
"Lessening the price point would be an improvement."
"The product is cheaply priced."
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Top Industries

By visitors reading reviews
Financial Services Firm
68%
Computer Software Company
6%
Construction Company
3%
Outsourcing Company
2%
Manufacturing Company
10%
Computer Software Company
9%
Comms Service Provider
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise12
Large Enterprise39
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise23
 

Questions from the Community

What is your experience regarding pricing and costs for ITRS Geneos?
The pricing is high. Licensing fees might be around 500$ per server monthly.
What needs improvement with ITRS Geneos?
ITRS Geneos is a legacy system. It predicts or provides proactive measures once an issue is resolved. It doesn't offer any predictive capabilities or root cause analysis. They throw a lot of data i...
What is your primary use case for ITRS Geneos?
ITRS offers multiple products, including upgrades for synthetic monitoring and a SaaS platform. Geneos is used for infrastructure monitoring, covering KPIs such as CPU, memory, processes, network l...
What is your experience regarding pricing and costs for Nagios Core?
Nagios Core is a free and open-source product. We don't charge for the product itself, but we charge for the man-hour costs related to installation, configuration, ongoing operation, and maintenance.
What needs improvement with Nagios Core?
The dashboard should be improved. It's very simple. I don't have a very clear or specific suggestion. You can change the skin of the dashboard, however, it's good for me.
What is your primary use case for Nagios Core?
I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...
 

Comparisons

 

Also Known As

Geneos
No data available
 

Overview

 

Sample Customers

ITRS Geneos is used by over 170 financial institutions, including JPMorgan, HSBC, RBS, Deutsche Bank and Goldman Sachs. Clients range from investment banks to exchanges and brokers.
Airbnb, Cisco, PayPal, FanDuel
Find out what your peers are saying about ITRS Geneos vs. Nagios Core and other solutions. Updated: March 2026.
884,012 professionals have used our research since 2012.