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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:
 

ROI

Sentiment score
8.1
ITRS Geneos boosts system stability, reduces downtime, and enhances decision-making with real-time dashboards and proactive alerts.
Sentiment score
8.9
Nagios Core boosted operational efficiency, reduced costs, minimized downtime, and significantly improved productivity and disaster recovery times.
With respect to post-mortems during incidents, it really helps during root cause analysis.
Senior Enterprise Cloud Architect at Blue Yonder
 

Customer Service

Sentiment score
7.9
ITRS Geneos's customer service is praised for prompt and expert issue resolution, knowledgeable staff, and proactive technical support.
Sentiment score
5.5
Nagios Core relies on community and documentation for support, offering valuable resources but facing scalability and consistency challenges.
I would rate 9 out of 10 with respect to ITRS Geneos's support, support metrics, and their support delivery.
Senior Enterprise Cloud Architect at Blue Yonder
 

Scalability Issues

Sentiment score
4.8
ITRS Geneos excels in scalability but may require manual efforts and faces challenges with vertical scaling and large estates.
Sentiment score
7.6
Nagios Core is highly scalable, supporting diverse infrastructures with open-source flexibility, despite some horizontal scaling concerns.
The solution is scalable.
Senior System Administrator at Interactive Group
 

Stability Issues

Sentiment score
7.9
ITRS Geneos is stable and reliable with resolved issues, ensuring effective performance and resilience even with increasing demands.
Sentiment score
8.6
Nagios Core is highly stable and reliable, offering exceptional performance on Linux with minimal plugin-related issues.
The product is really capable of handling large volume data.
Senior Enterprise Cloud Architect at Blue Yonder
I tried many other solutions at work, however, in terms of Nagios, I haven't seen any disruption or downtime.
Senior System Administrator at Interactive Group
 

Room For Improvement

ITRS Geneos users seek improved features, including visualization, documentation, integration, scalability, mobile access, AI, and enhanced UI.
Nagios Core needs a modernized interface, simplified configuration, scalability, and integration with tools like Grafana for improved usability.
Modern cloud platforms and data cloud platforms require more attention from the product.
Senior Enterprise Cloud Architect at Blue Yonder
 

Setup Cost

ITRS Geneos pricing is high, but customizable features and negotiations can justify costs, especially in banking.
Nagios Core provides cost-effective, open-source monitoring with engineering setup and maintenance, requiring customization expertise for full benefits.
 

Valuable Features

Geneos provides real-time monitoring and adaptability with customizable dashboards, enhancing enterprise efficiency in trading and system management.
Nagios Core offers extensible plugins, alerting, customizable dashboards, proactive monitoring, and integration, enhancing system reliability and minimizing downtime.
The advantages and strong points of ITRS Geneos for me personally are seamless integration with existing systems as well as upcoming modern systems.
Senior Enterprise Cloud Architect at Blue Yonder
You can monitor anything.
Senior System Administrator at Interactive Group
 

Categories and Ranking

ITRS Geneos
Ranking in Network Monitoring Software
72nd
Ranking in IT Infrastructure Monitoring
50th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
58
Ranking in other categories
Application Performance Monitoring (APM) and Observability (48th)
Nagios Core
Ranking in Network Monitoring Software
11th
Ranking in IT Infrastructure Monitoring
11th
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 June 2026, in the Network Monitoring Software category, the mindshare of ITRS Geneos is 0.6%, up from 0.6% compared to the previous year. The mindshare of Nagios Core is 1.5%, down from 2.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.5%
ITRS Geneos0.6%
Other97.9%
Network Monitoring Software
 

Featured Reviews

Ravi ShankarSundarasan - PeerSpot reviewer
Senior Enterprise Cloud Architect at Blue Yonder
Real-time monitoring has improved incident response and supports proactive anomaly detection
The advantages and strong points of ITRS Geneos for me personally are seamless integration with existing systems as well as upcoming modern systems. The user interface is really good. From a management point of view, these are the key aspects with respect to the user interface and seamless integration. We get very good community support for this product. ITRS Geneos has impacted my organization positively, and I would rate it 4.5 out of 5.
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.
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Top Industries

By visitors reading reviews
Financial Services Firm
59%
Construction Company
6%
Computer Software Company
6%
Outsourcing Company
4%
Manufacturing Company
10%
Comms Service Provider
10%
Financial Services Firm
8%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise12
Large Enterprise40
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
 

Questions from the Community

Ask a question
Earn 20 points
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: June 2026.
899,125 professionals have used our research since 2012.