Nmap vs OP5 Monitor comparison

Nmap and ITRS are both solutions in the Network Monitoring Software category. Nmap is ranked #17 with an average rating of 8.7, while ITRS is ranked #39 with an average rating of 9.0. Nmap holds a 0.8% mindshare in NMS, compared to ITRS’s 0.6% mindshare. Additionally, 100% of Nmap users are willing to recommend the solution, compared to 100% of ITRS users who would recommend it.

Nmap

Read 23 Nmap reviews

2,468 Views
2,246 Comparison Views

100% willing to recommend

OP5 Monitor

Read 7 OP5 Monitor reviews

1,753 Views
1,367 Comparison Views

100% willing to recommend

Nmap

OP5 Monitor

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 10, 2024

Nmap and OP5 Monitor are competing products in the realm of network management and monitoring. Nmap typically has the upper hand in the domain of network scanning and mapping, while OP5 Monitor provides an extensive range of monitoring capabilities, offering a comprehensive suite for users.

Features: Nmap provides features like network discovery, robust security auditing, and efficient port scanning. OP5 Monitor offers comprehensive monitoring solutions, with capabilities such as application monitoring, network tracking, and multi-level alert systems, advantageous for organizations seeking a holistic approach.

Room for Improvement:Nmap could improve its reporting and visualization tools, enhance user interface, and add more extensive customer support options. OP5 Monitor could have a more streamlined interface, reduce its complexity, and improve its integration with third-party tools for better usability.

Ease of Deployment and Customer Service: Nmap is generally easier to deploy with straightforward operations suited for network scanning needs. OP5 Monitor, though having more functions, has a steeper learning curve and utilizes supported deployment models with customer service to aid complex solutions.

Pricing and ROI:Nmap is cost-effective with minimal setup costs and quick ROI due to its efficient network assessment features. OP5 Monitor requires a larger initial investment, which is often justified by its extensive monitoring features and potential long-term ROI through enhanced network management.

To learn more, read our detailed Nmap vs. OP5 Monitor Report (Updated: March 2026).

Buyer's Guide

Nmap vs. OP5 Monitor

March 2026

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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

Nmap

Ranking in Network Monitoring Software

17th

Average Rating

8.6

Reviews Sentiment

7.7

Number of Reviews

Ranking in other categories

No ranking in other categories

OP5 Monitor

Ranking in Network Monitoring Software

39th

Average Rating

8.6

Reviews Sentiment

4.4

Number of Reviews

Ranking in other categories

IT Infrastructure Monitoring (38th)

Mindshare comparison

As of March 2026, in the Network Monitoring Software category, the mindshare of Nmap is 0.8%, up from 0.5% compared to the previous year. The mindshare of OP5 Monitor is 0.6%, down from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Mindshare Distribution
Product	Mindshare (%)
Nmap	0.8%
OP5 Monitor	0.6%
Other	98.6%

Network Monitoring Software

Featured Reviews

Sai Aditya Panda

Student at a consultancy with 11-50 employees

Penetration testing has become efficient as I identify open ports and security risks with confidence

Nmap could potentially become a GUI and provide automatic reports with one-click downloads. For example, the report could show all the open ports for an IP address with a professionally formatted report. This is a far-fetched suggestion and not really required, but it could make the work a little better. On a scale of one to ten, I give Nmap a solid nine. I mean, how can you fix something that is not broken? Nmap is already the best, and I do not think there are any other features that can be added. Its job is reconnaissance, so I do not think there is more to add to it. However, if I get any ideas, I will let them know about this.

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Sumanth Arshanapally

Senior Analyst at a tech vendor with 10,001+ employees

Monitoring ease and cost-saving benefits enhance operational efficiency

The monitoring in OP5 Monitor is very easy because we can directly use custom plugins. We can write custom scripts and use those scripts directly. It's very low cost, open, and the dashboards are easy to see. We can extract the reports easily, and this is very easy to compare. Real-time monitoring in OP5 Monitor provides data every one minute or every five minutes, enabling us to get live data from the last one minute or last five minutes. OP5 Monitor gave us proper server availability, so we can always check whether a server goes down or the server CPU and memory decreases. Before reaching a particular bottleneck situation, we identified and fixed the issue, which helped us from a cost-saving business perspective. It helped us avoid application downtime.

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Quotes from Members

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

Pros

"From a functionality standpoint, it's robust and straightforward to comprehend."

"The most valuable feature of the solution for security audits stems from the fact that it serves as a powerful tool with the ability to scan a large number of ports."

"The initial setup was simple."

"The tool's most valuable feature is its scripts. These scripts prove beneficial when security features may obscure or block connections. Nmap helps identify vulnerabilities across different systems, including web servers and various server types."

"The best feature of Nmap is that it lets me see useful information about each endpoint in my entire network environment. For example, I can see every single connection of the network as well as each and every port."

"The scanning procedure includes UDP ports which sets it apart from competitors."

"Nmap is mostly helpful during compliance checks. We run the scanner to see how many devices are on our network and find vulnerabilities in those that aren't compliant. We also use it monthly to scan our network and identify devices that aren't connected properly. This helps us detect any issues related to the operating systems of these devices."

"Nmap is free and should stay this way."

More Nmap pros

"The API makes it pretty easy to integrate with any system."

"Instead of checking the logs each Monday, or checking that applications are running, and checking your ticketing system for angry users, you put this system in place and it monitors and continuously tests everything that is of importance to you and your users."

"Its open-source environment is accessible to everyone."

"We can also observe whatever we want, and there are no limitations."

"OP5 Monitor is a great choice due to its being built on an open-source monitoring tool and provides ample opportunity for customization based on specific support requirements. It is also user-friendly and easy to manage with a wide range of plugins available for use. In comparison to other enterprise tools, such as Micro Focus, OP5 Monitor stands out for its features and cost-effectiveness, making it the best tool in the market. Customization is one of the key strengths of the tool and provides a lot of capabilities. Additionally, it is easy to find support and plugins for the tool through online resources."

"The best feature is that it is very relatable, stable, and scalable."

"It monitors and continuously tests everything that is of importance to you and your users. It could be everything from monitoring disk space to CPU usage to memory. It could include determining if the response time in your e-commerce platform is quick enough, or whether you have too many bounces from some of the pages on your website. You want to monitor anything that could cost you money or time or resources. You can do that with this system. It's very flexible."

"The best feature is that it is very relatable, stable, and scalable. The logger is a part of the software, but it's not the most important point of it."

More OP5 Monitor pros

Cons

"The price is high and could be cheaper."

"Nmap needs to improve its scanning speed."

"The price is high and could be cheaper."

"The solution's initial setup could be better."

"The tool's license limits the number of scans it can perform. Improving the license model could benefit customers by allowing more scans for compliance and other purposes."

"Customization is not very user-friendly in Nmap."

"They should deliver Playtech's username and password."

"The solution is not that easy for a beginner to learn."

More Nmap cons

"They need to improve the dashboard interface."

"The user interface is not what we are used to these days, and should be improved."

"We do not get performance reports properly, which needs improvement."

"IT environments today are in constant flux. This is driven by the newer cloud technologies such as Kubernetes and Docker, etc. The whole Nagios-based monitoring system that OP5 is created on top of, is based on a host-service model. There is a need for a strategy on what to do with more dynamic environments."

"OP5 lacks some visualization, a feature that makes some other products nice. Op5 is built for purpose, which is fine, but if you compare it with some new products, the visualization is not so appealing, especially for management... If you don't need fancy visualizations, OP5 is fine."

"They need to improve the dashboard interface."

More OP5 Monitor cons

Pricing and Cost Advice

"It's an open-source solution. Commerically, only the support service is available."

"The product's pricing is fine. The licensing options for Nmap include perpetual licenses and volume-based licenses. For perpetual licenses, once you purchase it, there's no need to invest in renewals. And for volume-based licenses, enterprise companies can use it multiple times based on the number of users or devices they need to scan. It's a pay-as-you-go model, similar to how you pay for what you use."

"It's an open-source product, and I haven't seen any premiums. Options are available for those who purchase, but for my use case, everything I need is available in the community and forums."

"Nmap is an open-source product. You don't need a license to install it."

"I am using the standard free version of Nmap."

"Nmap is an open-source and free product."

"The solution is open source so it is free."

"The solution is free of cost."

More Nmap pricing and cost advice

"The cost of the license and support are separate. If you want platinum call support, it will cost more than a regular call. I did not opt for it, as it is an additional cost."

"It was not expensive. And because it's less demanding in terms of hardware, you don't have to pay for another SQL or other database license, and you can have a huge installation on one machine..."

"OP5 has a very low price as a solution, compared to many other solutions out there."

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Top Industries

By visitors reading reviews

Manufacturing Company

12%

Construction Company

10%

Government

University

Manufacturing Company

12%

Government

12%

Financial Services Firm

11%

Healthcare Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	1
Large Enterprise	11

By reviewers
Company Size	Count
Small Business	2
Large Enterprise	5

Questions from the Community

What do you like most about Nmap?

Nmap is mostly helpful during compliance checks. We run the scanner to see how many devices are on our network and find vulnerabilities in those that aren't compliant. We also use it monthly to sca...

See all answers

What is your experience regarding pricing and costs for Nmap?

I am using the free version of Nmap.

See all answers

What is your primary use case for Nmap?

Nmap is used for network scanning to map the network, identify devices, and assess their status. It helps determine open ports and services running on a particular endpoint or server within an ente...

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What is your experience regarding pricing and costs for OP5 Monitor?

The price for OP5 Monitor is fine, but we don't know the exact price because it was managed by us; the customer themselves bought it and gave it to us to monitor.

See all answers

What needs improvement with OP5 Monitor?

OP5 Monitor could include application monitoring in addition to infrastructure monitoring. If application business transactions were monitored, it would be helpful. For application-related issues, ...

See all answers

What is your primary use case for OP5 Monitor?

Our previous use case for OP5 Monitor was server monitoring.

See all answers

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Product Reports

Buyer's Guide

Nmap

March 2026

Download Nmap product report

Buyer's Guide

OP5 Monitor

March 2026

Download OP5 Monitor product report

Overview

Nmap ("Network Mapper") is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), a utility for comparing scan results (Ndiff), and a packet generation and response analysis tool (Nping).

Nmap

OP5 Monitor - The Complete Monitoring Solution

OP5 Monitor is a flexible and highly scalable monitoring solution for all sizes of environments. Use just one product to monitor your IT environment regardless of location, whether on-premise, in dynamic environments, public cloud or a hybrid of these.

Digital transformation adds extra layers and complexity to the IT estate by creating a hybrid IT environment of both static and dynamic environments, that can be difficult to monitor efficiently. ITRS OP5 Monitor gives enterprises full visibility over their entire IT estate through a single pane of glass, allowing them to consolidate monitoring tools and cut down costs.

ITRS

Sample Customers

Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication

Svenska Spel, Carus, VGL, Tele2, Viking Line, Clas Ohlson, Vanderlande, Försäkringskassan

Buyer's Guide

Nmap vs. OP5 Monitor

March 2026

Free Report: Nmap vs. OP5 Monitor

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