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Nmap vs PRTG Network Monitor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 15, 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
12th
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
8.0
Reviews Sentiment
7.1
Number of Reviews
104
Ranking in other categories
IT Infrastructure Monitoring (6th), Cloud Monitoring Software (11th)
 

Mindshare comparison

As of September 2025, in the Network Monitoring Software category, the mindshare of Nmap is 0.6%, up from 0.5% compared to the previous year. The mindshare of PRTG Network Monitor is 4.2%, down from 4.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
PRTG Network Monitor4.2%
Nmap0.6%
Other95.2%
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.
Noman-Saleem - PeerSpot reviewer
Detects suden changes but significant pricing concerns affect the effectiveness of network traffic troubleshooting
We use PRTG Network Monitor for monitoring traffic on interfaces and the behavior of network traffic. If there are sudden changes in traffic or any configuration issues, we can sort them out using PRTG. It's very helpful for troubleshooting and monitoring traffic utilization on our interfaces…

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."
"Nmap's performance is great, and I've never noticed any issues in this respect. It really doesn't put a heavy load on the machine when using it."
"Nmap has a powerful command line tool and a set of diagnostic features."
"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 real-time reporting feature of Nmap is particularly valuable. It generates detailed reports on the source and destination IP addresses, the protocols used, and the types of traffic."
"The initial setup was simple."
"The scanning procedure includes UDP ports which sets it apart from competitors."
"It is a very user-friendly product."
"We have asked questions of their technical support and they have a very good response time."
"The up-to-date graphs and the history are very good."
"Ease of set-up – it is quick and easy to add a probe and start collecting data from a device."
"The solution is easy to manage and the reports are very accurate."
"We like the alerting system, the SNMP monitoring and the customization of the bandwidth."
"The feature whereby it shows when my hard drives are moving towards thresholds that would be considered outages, before they reach that point - that is valuable."
"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 Slack integration is fantastic, and I've actually found it to be very useful recently."
 

Cons

"Customization is not very user-friendly in Nmap."
"The challenge often lies in finding suitable courses and professional resources."
"There could be a specific option to check non-pingable endpoints for the product."
"They should deliver Playtech's username and password."
"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."
"The solution should increase the number of features under a free license."
"I know we're going to move to Docker applications and I understand that PRTG does some monitoring regarding this. I do not know if it is complete. If it's not yet complete, it's something they should consider improving."
"We have had a few issues with the web elements, as far as the dashboard. With the dashboard, it has to be manually refreshed. Occasionally, we reboot the server, or at least web services, due to the web aspect."
"They just released a newer version of the desktop app, a beta version, that I have been trialing out. I prefer the older version, only because of how the layout is designed"
"I would like to see network mapping."
"When you email the support team, they take three to seven days to respond and resolve simple issues."
"We would like more cloud native sensors for AWS, Azure, Google Cloud, etc. A lot of businesses are moving in that direction, so having something where we can pull performance stats out of these cloud services would be great for us."
"We need something that is more predictive. We would prefer if it wasn't a solution that was corrective and instead offered predictive insights so that we can handle problems before they even occur."
"The Desktop app is good but it can be really sluggish at times, especially when you're editing different elements."
 

Pricing and Cost Advice

"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."
"The solution is free of cost."
"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."
"I am using the standard free version of Nmap."
"Nmap is an open-source product. You don't need a license to install it."
"It's an open-source solution. Commerically, only the support service is available."
"Nmap is an open-source and free product."
"I am using the free version of Nmap."
"Right now, the smallest sensor pack that they have is just a bit out of range for me, as a business. This kills me, as I need the product. Therefore, there is always a balance between needing to buy it or continuing their free version."
"PRTG Network Monitor is cheap."
"The pricing for PRTG in our case is reasonable because we have a lot of applications to monitor within PRTG. It is not that expensive."
"When you have a lot of devices, PRTG Network Monitor can be costly."
"We are using the basic PRTG that we can download for free. For now, we only need to monitor less than 100 devices. For more than 100 devices, we would need to buy a license. PRTG is much cheaper than SolarWinds."
"The scalability is there, but smaller companies might need CAM software to be able afford the product."
"We used a product called SolarWinds in the past, and its cost was high. Whereas, PRTG came in at a third of SolarWind's cost."
"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."
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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
Manufacturing Company
13%
Computer Software Company
9%
Educational Organization
9%
Retailer
9%
Computer Software Company
12%
Government
9%
Financial Services Firm
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise1
Large Enterprise11
By reviewers
Company SizeCount
Small Business54
Midsize Enterprise18
Large Enterprise38
 

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 pricing is in the middle. It's not too high, nor too low, but it's reasonable.
 

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: September 2025.
867,676 professionals have used our research since 2012.