ITRS Geneos vs Nagios Core comparison

ITRS and Nagios are both solutions in the Network Monitoring Software category. ITRS is ranked #68 with an average rating of 5.0, while Nagios is ranked #13 with an average rating of 8.3. ITRS holds a 0.6% mindshare in NMS, compared to Nagios’s 2.6% mindshare. Additionally, 96% of ITRS users are willing to recommend the solution, compared to 80% of Nagios users who would recommend it.

ITRS Geneos

Read 57 ITRS Geneos reviews

4,081 Views
1,102 Comparison Views

96% willing to recommend

Nagios Core

Read 51 Nagios Core reviews

4,252 Views
3,699 Comparison Views

80% willing to recommend

ITRS Geneos

Nagios Core

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 9, 2024

ITRS Geneos and Nagios Core are competitors in the monitoring solutions category. ITRS Geneos seems to have the upper hand with its real-time insights and extensive integration capabilities, while Nagios Core offers flexibility with significant customization through its open-source platform.

Features: ITRS Geneos provides real-time monitoring with comprehensive integration capabilities and customizable dashboards. It offers real-time insights and issue prediction to reduce latency. Nagios Core, as an open-source solution, allows significant customization and supports various monitoring needs. It offers infrastructure monitoring and rudimentary application checks.

Room for Improvement: ITRS Geneos needs enhanced historical data reporting and better cloud monitoring. Users seek improved middleware integration and dashboard flexibility. Nagios Core should address its steep learning curve due to the complex configuration process, and users desire a more user-friendly UI and cloud integration.

Ease of Deployment and Customer Service: ITRS Geneos mainly supports on-premises installations with recognized customer service proficiency, though faster response times are desired. Nagios Core supports on-premises and hybrid environments with a community-driven support model, fostering self-sufficiency due to limited direct vendor support.

Pricing and ROI: ITRS Geneos, noted for its higher cost, is justified by its capabilities and customizability, proving beneficial in environments where downtime is costly. Nagios Core is a free solution, avoiding licensing costs but may require significant investment in customization to match commercial offerings. It is resource-intensive due to specialized configurations for effective setup.

To learn more, read our detailed ITRS Geneos vs. Nagios Core Report (Updated: September 2025).

Buyer's Guide

ITRS Geneos vs. Nagios Core

September 2025

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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

68th

Ranking in IT Infrastructure Monitoring

47th

Average Rating

8.2

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

Application Performance Monitoring (APM) and Observability (33rd)

Nagios Core

Ranking in Network Monitoring Software

13th

Ranking in IT Infrastructure Monitoring

10th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of September 2025, in the Network Monitoring Software category, the mindshare of ITRS Geneos is 0.6%, down from 0.7% compared to the previous year. The mindshare of Nagios Core is 2.6%, down from 3.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Market Share Distribution
Product	Market Share (%)
Nagios Core	2.6%
ITRS Geneos	0.6%
Other	96.8%

Network Monitoring Software

Featured Reviews

Sanket

Chief Manager at a marketing services firm with 501-1,000 employees

With the help of the solution, we can predict and prevent failures

Currently, the most valuable thing for an individual is a mobile device. Since that is where people are currently tracking everything, we have multiple applications or apps that are for various products. I would like ITRS Geneos to develop an app, where instead of going to specific login terminals or logging into laptops or desktops to check alerts, we can have visibility in the app itself. Using the ITRS Geneos app, we could see the error message during our travels or wherever we are. I would like to see the capacity of messages for forecasting increased. Since the NSE is the number one derivative stock exchange in the work for three consecutive years, the number of messages is important. We use the capacity planner in ITRS to forecast our data needs for the next two months. The planner is important because the volume of data we produce is becoming more and more volatile compared to when we first started using ITRS Geneos in 2014.

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Nishith-Vyas

Tech Lead at STL Digital Limited

Valuable reporting and alert system with room for PDF export improvements

The NetEase reporting structure needs improvement, especially the availability report, which is weak. It should be generated automatically with minimal human intervention and should be exportable as a PDF. Besides that, an integrated PDF export feature for reports is necessary. Also, the alert mechanism and graphing mechanism need to be integrated properly into Nagios Core. Currently, integrating these requires advanced Linux knowledge. Integration of more visualization tools like Grafana and Prometheus for better graphing and visualization is also recommended.

Read full review

Quotes from Members

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

Pros

"One thing we're utilizing in Geneos is the Gateway-SQL. That's really helpful for us. Using Gateway-SQL, we are able to merge two different views into one. Suppose we have to check something in the log and that we have to check something in the database and do a comparison before publishing a result. We can achieve that using Gateway-SQL."

"Ability to monitor logs for potential issues to prevent app outages before problems get a chance to arise. That's invaluable for our teams in a fast-paced trading environment."

"I always appreciate Geneos's stability and ease of use."

"The Netprobe is so lightweight compared to the agents that most monitoring tools use. It's really superior to the competition. The agent that is used by almost every competitive tool takes a lot more system resources. It's slower and it requires a greater effort and more compromises in terms of security to install on the monitored servers. With Geneos, because it lives outside the code, it is far easier and far less taxing on the monitored systems."

"The clean and colorful UI and easy to use options like snooze and active times."

"One of the most valuable features is that it can be configured by non-developers. It doesn't require development expertise to configure it."

"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."

More ITRS Geneos pros

"Nagios monitors our servers, so we know if anything goes wrong and can solve the problem before it happens."

"Nagios Core integrates with tools like Splunk, Datadog, or Dynatrace. It is usually used as a feed to provide more technical information about devices or hosts to another system."

"Nagios Core is stable."

"What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services."

"Provides timely notifications."

"I would rate the overall solution ten points out of ten."

"We mostly use Nagios Core to integrate with Python and Bash Script."

"I like the way the solution sends alerts and how it keeps on escalating them."

More Nagios Core pros

Cons

"At the moment Geneos is excellent and handling real time monitoring, however not great at doing historical reporting."

"I would really like to see something from the Geneos side to set up automated reporting from ITRS. We have to send reporting to management every day. To do that we have to check the dashboard and then we have to report whether everything is fine or not. In the future, I want something, some reporting kind of feature in ITRS, where it can collect all the data and mention what is green, what is amber, what is red in a report."

"I would like to see ITRS integrate its setup editor with a SVN to check-in setup XML after major changes."

"Sometimes, if there is a lot of data coming onto the servers, we have observed a little bit of slowness on the gateway servers which are doing the ITRS dashboard monitoring."

"Backward compatibility with deprecated features and in system documentation on what configuration areas are needed to be updated."

"Currently, it is difficult to monitor secure websites using SSL or with SSO enabled."

"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."

More ITRS Geneos cons

"Nagios Core is limited in terms of distributed setups, and there is no central view for remote data centers."

"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."

"It is a bit slow due to latency."

"It's not that easy to install the product itself. Also, the UI is a bit hard for regular users to navigate through."

"I believe Nagios Core will need to provide an option for big data platforms in the future."

"Would benefit from aggregations if a particular server goes down."

"The alerting mechanism in Nagios Core could be improved."

"t was a little hard to get our setup represented in the configuration."

More Nagios Core cons

Pricing and Cost Advice

"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."

"Pricing is the touchy subject, even here. Upper management always wants us to find a cheaper solution. But we have so much integrated with ITRS... It's expensive, but it does its job very well. And you set it and go."

"The pricing seems reasonable. We're happy enough with it."

"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."

"Given our spend and the amount of service we have in it, the pricing is quite reasonable."

"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."

More ITRS Geneos pricing and cost advice

"The solution is expensive."

"We are using the free version."

"The Nagios Core (PNP4Nagios + Core) is free and can be setup by Netadmin within a few hours. The only additional cost is the cloud server."

"Nagios Core is free to use."

"Nagios Core is an open source solution, and there are no licensing fees."

"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."

"Lessening the price point would be an improvement."

"Nagios Core is a cheap solution."

More Nagios Core pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

72%

Computer Software Company

University

Construction Company

Computer Software Company

14%

Government

Manufacturing Company

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	12
Large Enterprise	39

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	11
Large Enterprise	22

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.

See all answers

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...

See all answers

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...

See all answers

What do you like most about Nagios Core?

What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services.

See all answers

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.

See all answers

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.

See all answers

Comparisons

Dynatrace vs ITRS Geneos

Compared 22% of the time

Splunk AppDynamics vs ITRS Geneos

Compared 14% of the time

Grafana vs ITRS Geneos

Compared 13% of the time

Datadog vs ITRS Geneos

Compared 8% of the time

Scout APM vs ITRS Geneos

Compared 2% of the time

More ITRS Geneos Competitors

Icinga vs Nagios Core

Compared 23% of the time

Nagios XI vs Nagios Core

Compared 15% of the time

Zabbix vs Nagios Core

Compared 13% of the time

Centreon vs Nagios Core

Compared 7% of the time

Checkmk vs Nagios Core

Compared 6% of the time

More Nagios Core Competitors

Product Reports

Buyer's Guide

ITRS Geneos

September 2025

Download ITRS Geneos product report

Buyer's Guide

Nagios Core

August 2025

Download Nagios Core product report

Also Known As

Geneos

No data available

Overview

ITRS Geneos is a real-time monitoring tool designed for managing increasingly complex, hybrid and interconnected IT estates.

Built with financial services and trading organisations in mind, it collects a wide range of data relating to server performance, infrastructure, trading, connectivity and applications, and analyses it to provide relevant information and alerts in real time.

Geneos can give full stack visibility across highly dynamic environments and presents all the information through a single pane of glass and its configurable and customisable dashboards provide end-to-end visibility to both technical and business users.

For more information, please visit https://www.itrsgroup.com/products/geneos

ITRS

This is IT infrastructure monitoring's industry-standard, open-source core. Free without professional support services.

Nagios

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

Buyer's Guide

ITRS Geneos vs. Nagios Core

September 2025

Free Report: ITRS Geneos vs. Nagios Core

Find out what your peers are saying about ITRS Geneos vs. Nagios Core and other solutions. Updated: September 2025.

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