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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

"The solution's log monitoring and alerting mechanisms are very user-friendly and easy to plug and play."
"The great advantage of this tool is real-time monitoring."
"ITRS can define rules to alert when certain parameters that you monitor breach a threshold. Rules can be configured to fire recovery actions automatically to clear the alert"
"Real-time log monitoring with desktop alerts is valuable as it tells us immediately when there is an issue."
"The biggest benefit of Geneos is the fact that we can clearly see, if we have an alert, where that alert has come from. We can see the data around that alert and anything that might be relevant is also shown. We can very easily right-click and see why we've received that alert. That's the best part about it, that you've got all the data there with the alerting."
"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 NetProbe carries over 100 samplers which are capable of monitoring hardware, OS, and the application layer."
"The flexibility of the product is most valuable. It is highly customizable. If you put your mind to it and think of something you could do, there's a good possibility you can get it integrated within the console, if it's not readily available. The simplicity or ease of customization has been valuable."
"Other products are good but from the configuration point of view Nagios is really very lightweight. The price is really good in my opinion. Another important thing is that my Nagios engine still works with Dual core 8GB ram for the last 10 years."
"The most valuable feature depends on the project. It's great if you need to check to ensure a service is running 24/7. I can use the full solution for free, and it's flexible. If I need to add a dashboard, I can integrate it with Nagios. Cloud synchronization is wonderful."
"What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services."
"The most valuable feature is the performance parameters of the system."
"The good thing about Nagios Core is it covers everything."
"The most valuable feature of Nagios Core is the ability to check the availability of the server for network connectivity. Additionally, the interface is good."
"It has made the life of the network operations staff more proactive in managing the resources of the infrastructure. It prevents disasters long before they can take place."
"It is fairly easy to set up, and we can monitor pretty much everything we want to."
 

Cons

"The deployment method for upgrading is a bit tricky. It takes a little bit of manual effort. If that could be a bit more automated, it would help us a lot."
"The ITA, the post-incident analytics, could be improved."
"The main feature that needs work is the Dashboard designer."
"A lightweight version which could host more than 100 gateways, as we can see slowness while loading all our gateways."
"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."
"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."
"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."
"They have the Webslinger solution where you can see when something is alerting. It's a little bit cumbersome."
"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."
"I would like to see more training videos."
"The interface could be improved."
"Nagios Core is limited in terms of distributed setups, and there is no central view for remote data centers."
"The mapping is a little hard."
"Nagios Core can improve the graphical interface, it would make things a little easier."
"The UI is a little outdated and graphics could be displayed in a better way."
"We're using the free version, which limits us in terms of the things that we can do. If we had the paid version, a lot of our issues would probably go away. For example, we can't isolate instances that are being built or updated with the production ones. When they're being built, on Nagios, they're showing in red. It'd be nice to be able to partition those off until they're all green, and then we can bring them into the environment. This is probably because we've got the free version and not the paid version. If we went for the paid version, it would probably allow us to do exactly what we want to or remove the restrictions that we have, but if we are able to isolate instances in the free version, it would make life much easier."
 

Pricing and Cost Advice

"I can say it's not that cheap because the licensing is a little bit costly"
"Given our spend and the amount of service we have in it, the pricing is quite reasonable."
"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."
"The organization is not just purchasing a license for the product, but also managing services and professional services from ITRS. Another factor is if the implementation is going to be in production, non-production, or both."
"You will get the best price if you get a single global deal."
"Pricing and licensing is based on the requirements."
"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."
"We are using the free version of Nagios Core."
"I would rate the solution's pricing an eight out of ten."
"The solution is expensive."
"We are using the free version."
"It's free."
"The product is cheaply priced."
"Nagios Core is an open source solution, and there are no licensing fees."
"Lessening the price point would be an improvement."
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Top Industries

By visitors reading reviews
Financial Services Firm
69%
Computer Software Company
6%
Outsourcing Company
2%
Real Estate/Law Firm
2%
Manufacturing Company
10%
Computer Software Company
10%
Comms Service Provider
10%
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.
884,328 professionals have used our research since 2012.