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Nmap vs PRTG Network Monitor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 9, 2025

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
13th
Average Rating
8.6
Reviews Sentiment
7.7
Number of Reviews
22
Ranking in other categories
No ranking in other categories
PRTG Network Monitor
Ranking in Network Monitoring Software
5th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
101
Ranking in other categories
IT Infrastructure Monitoring (8th), Cloud Monitoring Software (8th)
 

Mindshare comparison

As of April 2025, in the Network Monitoring Software category, the mindshare of Nmap is 0.5%, down from 0.6% compared to the previous year. The mindshare of PRTG Network Monitor is 4.2%, down from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

AntoSebastin - PeerSpot reviewer
Scans the network and identifies vulnerabilities on each machine
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. The tool's most valuable feature is its vulnerability scanning. It allows us to scan a specific range of IP addresses and discover devices within that range. This makes it easy to identify devices and view their details. Port scanning is crucial for network management tasks. It helps us identify vulnerabilities by finding open ports that may be unused or misconfigured. This tool makes it easy to detect such issues. The OS detection feature is great. Unlike other tools, Nmap provides accurate information about asset vulnerabilities, helping us easily detect and address them. Using Nmap provides value to the company, especially during compliance audits. It helps generate reports on assets, updates on workstations, and insights into network activities and potential attacks. Additionally, Nmap detects vulnerabilities and provides port details, allowing us to close unused ports on the client machines.
Tochukwu Uzomba - PeerSpot reviewer
Efficiently monitor networks across regions with seamless setup and robust feature set
PRTG Network Monitor is easy to set up. Within a few minutes, it is operational. It is an all-in-one monitoring solution without extra costs. For example, we set it up for an insurance company with branches across Africa. We are able to monitor from Lagos without installing anything in the branches, using the agentless feature. We just put in the IP address and the parameter, and we monitor from those ends. Additionally, all the sensors are very useful. Most people are interested in the bandwidth monitoring sensor to see what bandwidth the users are consuming. The pricing is affordable compared to SolarWinds.

Quotes from Members

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

Pros

"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."
"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 has a powerful command line tool and a set of diagnostic features."
"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."
"It helps us secure the network infrastructure."
"From a functionality standpoint, it's robust and straightforward to comprehend."
"The initial setup was simple."
"The scanning procedure includes UDP ports which sets it apart from competitors."
"It helps the entire organization become digitally enabled."
"The network visualization helps us to drill down deeper."
"The remote probes are very useful. They allow us to provide a reference across different areas in the network. In trying to localize issues, that's very useful."
"What I've found most valuable is the custom sensor, which allows you to write scripts or code to monitor a specific metric in your environment."
"Network Discovery is a feature that our customers like a lot."
"The fact that I can use custom MIB files to customize my sensors for the things that are not there as a default is a good feature."
"The most valuable feature of PRTG Network Monitor is real-time monitoring."
"The reporting module is easy to configure."
 

Cons

"The solution should increase the number of features under a free license."
"Customization is not very user-friendly in Nmap."
"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."
"The challenge often lies in finding suitable courses and professional resources."
"There is room for improvement in the design, the GUI. It looks a bit odd. Maybe Nmap should improve it or add more widgets to make it more attractive, but the basic functionality is good and provides what we need."
"There could be a specific option to check non-pingable endpoints for the product."
"Nmap major operates through the CLI; there's no GUI component, and that's where the challenge is."
"One of the drawbacks of the standard Nmap utility is that it does not come with a graphical user interface, unlike a number of other open-source alternatives such as Zenmap."
"PRTG Network Monitor can improve the reports. In the reports, you have to give an alert for that SMS and email, the emergency calls and downtimes have to be reported accordingly. You have to enable email services or an SMS gateway service to receive more alerts at the proper time."
"I've encountered a challenge in my functions, particularly in adding and printing."
"The solution could be better and faster when it comes to performance."
"In terms of sensors and probes, it would be really cool if PRTG had a purely Azure-based solution. We had to install a probe on one of our cloud servers and then let that probe out from there. It would be really cool if it just monitored Azure without having to install something on the device."
"PRTG Network Monitor can improve by having better integration with devices."
"They could improve the process of updating the license."
"We've had some issues previously with the performance of the sensors. We tend to deploy quite a bit of WMI, which is quite processor-intensive, and we've found that that impacts the sensors quite a bit."
"More training videos for installing and configuring this software would have been nice, especially when working with a lot of devices."
 

Pricing and Cost Advice

"I am using the standard free version of Nmap."
"It's an open-source solution. Commerically, only the support service is available."
"Nmap is an open-source product. You don't need a license to install it."
"The solution is open source so it is free."
"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."
"The solution is free of cost, but there are specific services that we have to buy."
"Nmap is an open-source and free product."
"Nmap is open source software, which suits us well because we are a manufacturing company and not an IT company, for example. If we were an IT company, we would probably need to pay for extra support or instead go for another software solution. But as it is, we don't have any need for high-end troubleshooting tools."
"On a yearly basis, I believe it's between £1,200 and £1,500."
"We've got the unlimited package... I believe it was around the £15,000 per year mark."
"We have unlimited devices and sensors, and it is a bit pricey, but we do have unlimited sensors. With all things considered the price is fine, related to the solution itself. PRTG Network Monitor is good value for money."
"PRTG is now available as PRTG Enterprise Monitor, and the price varies depending on the total number of sensors the customer buys"
"If you are not too sure about it, try the free version. Then, if you like it, you can go to the paid version and roll it out."
"We looked at PRTG and SolarWinds. From a cost side perspective, compared to PRTG, and from what you get back from it, PRTG was sort of a hands down the winner."
"We pay nothing for it. Its 100 sensors have allowed us to put a magnifying glass on some systems, providing an extra layer of detail. Therefore, our outgoing is nothing and our incoming is a lot of useful data that we can react to proactively."
"When you have a lot of devices, PRTG Network Monitor can be costly."
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Comparison Review

it_user174738 - PeerSpot reviewer
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Retailer
13%
Computer Software Company
12%
Educational Organization
9%
Manufacturing Company
8%
Educational Organization
51%
Computer Software Company
8%
Financial Services Firm
5%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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...
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...
What is the best network monitoring software for large enterprises?
PRTG network monitor is one of the best tool i have ever used for the monitoring. It have auto discovery option. it avoid the configuring the device in PRTG. It automatically discover the device an...
What do you like most about PRTG Network Monitor?
The tool is integrated with our email for the alerts.
What is your experience regarding pricing and costs for PRTG Network Monitor?
The prices are very high for PRTG Network Monitor. That's why I'm using the free100 sensor license.
 

Comparisons

 

Overview

 

Sample Customers

Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication
Jameson Bank, Sidnix, RungeICT, MedicalAnimal, Truck-lite, GamingGrids, The Covell Group, Forsythn County Schools, NetMass, Musgrove Park Hospital, Lanes Health, Columbia Southern University, Vodafone, Intrust Bank
Find out what your peers are saying about Nmap vs. PRTG Network Monitor and other solutions. Updated: April 2025.
848,253 professionals have used our research since 2012.