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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
15th
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 (7th), Cloud Monitoring Software (8th)
 

Mindshare comparison

As of March 2025, in the Network Monitoring Software category, the mindshare of Nmap is 0.5%, down from 0.7% compared to the previous year. The mindshare of PRTG Network Monitor is 4.1%, down from 5.1% 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

"Nmap has a powerful command line tool and a set of diagnostic features."
"The initial setup was simple."
"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."
"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."
"From a functionality standpoint, it's robust and straightforward to comprehend."
"It enables us to delve deeper and identify the services and open ports on the system and visualize this information on a dashboard automatically."
"It helps us secure the network infrastructure."
"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 most valuable feature of PRTG Network Monitor is the different monitoring probes available."
"Nice product with an easy interface to use and a large variety of sensors."
"Good compilation of the system's information."
"The bandwidth monitoring is a very attractive feature, it can tell you the bandwidth utilization while it is attempting to connect to the host for feedback."
"The sensors and probes are great, nice and lightweight, they don't take up too many resources on the system. We just deploy them out and they start reporting instantly."
"The email notifications are helpful, and the dashboards are user-friendly for people with little network monitoring knowledge."
"This solution provides us with the needed feedback on our IT infrastructure. It allows us to grab all the information from a single point of view."
"Its proactiveness is its most valuable feature. We already know when we come in, in the morning, if a server or site is down, as opposed to someone telling us."
 

Cons

"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."
"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."
"It takes a bit of time to get familiar with the solution and its options."
"The challenge often lies in finding suitable courses and professional resources."
"Nmap major operates through the CLI; there's no GUI component, and that's where the challenge is."
"Nmap needs to improve its scanning speed."
"The solution should increase the number of features under a free license."
"Since I started using Nmap, it has been completely based on the command prompt and I think it would help other users if they implemented a decent GUI as well."
"Sometimes, it is difficult to drill down further to get information, e.g., if we saw spike in traffic, then we would want to drill down and find out what is causing that spike in traffic."
"I would like to see Office 365 monitoring. Essentially, it doesn't do it. I assumed not at all, but apparently it does it slightly. However, due to issues with APIs, they currently don't provide full monitoring for O365."
"Its price can be better. Its price is a problem for us because it is in dollars, and there is a high conversion rate. In terms of new features, it can have BGP monitoring. It should also have a dashboard and maps editor."
"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."
"The only sort of limitation is the actual probes. So, if you don't have enough probes on there, you can over flip them and cause the WMI sensors and SNMP sensors to sort of overload. Sometimes, they might timeout for a minute, but they do come back."
"I would like a more straightforward ability to create dashboards and maps. The network maps should be a bit more flexibility in the GUI to do what we need to do."
"Needs ability to monitor standard notification time (notify after X time)."
"The remote probes seem to be a little bit buggy at times. They just stop working or they say they can't communicate. What we tend to do to is install the remote app onto the servers that we use. That seems to clear it up."
 

Pricing and Cost Advice

"The solution is open source so it is free."
"Nmap is an open-source product. You don't need a license to install it."
"Nmap is an open-source and free product."
"It's an open-source solution. Commerically, only the support service is available."
"I am using the free version of Nmap."
"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."
"The solution is free of cost, but there are specific services that we have to buy."
"I am using the standard free version of Nmap."
"I would like better pricing models for smaller businesses. The free version is fantastic, but it's too restrictive. If they could just get up to 200 sensors for a reasonable fee for on-premise, I would give PRTG my credit card right now."
"The price of PRTG is reasonable. PRTG's competitors like SolarWinds and ManageEngine charge more for the same functionality."
"It is about £4,500 for the first year, then about another 15 to 20 percent annually after that. So, we are looking at about £1000 running costs a year. When you think about how much an outage costs per minute, it's negligible."
"We have an unlimited perpetual license, so we just pay support costs and it can scale throughout the organization."
"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."
"I'm paying something like €1000 per year for the maintenance. I've got unlimited sensors."
"The price is pretty comparable."
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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
Computer Software Company
12%
Retailer
11%
Educational Organization
9%
University
9%
Educational Organization
53%
Computer Software Company
8%
Government
5%
Financial Services Firm
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: March 2025.
842,651 professionals have used our research since 2012.