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Opmantek NMIS vs PRTG Network Monitor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 28, 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

Opmantek NMIS
Ranking in Network Monitoring Software
103rd
Average Rating
9.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
PRTG Network Monitor
Ranking in Network Monitoring Software
5th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
112
Ranking in other categories
IT Infrastructure Monitoring (4th), Cloud Monitoring Software (9th)
 

Mindshare comparison

As of January 2026, in the Network Monitoring Software category, the mindshare of Opmantek NMIS is 0.3%, up from 0.2% compared to the previous year. The mindshare of PRTG Network Monitor is 3.3%, down from 4.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
PRTG Network Monitor3.3%
Opmantek NMIS0.3%
Other96.4%
Network Monitoring Software
 

Featured Reviews

it_user855840 - PeerSpot reviewer
Systems Architect at a tech services company with 51-200 employees
Flexible device polling times and extensible modules are key features for me
There are lots of reasons why I'm using it. The installer itself is basically something that can be used as a no-questions-asked type of installer. I can use it with automation tools like Chef and Puppet. I don't have to answer some random questions. I can worry about all that stuff later on in the configuration. It allows for variable polling times of devices on the network. Because it's all in text, in general, that obviously makes it easier from the automation perspective as well, to modify configuration on the fly, using Puppet and those kind of tools. It does have different modules, so you can extend the solution as you need it, or get as little as you need in the beginning, so you don't have to buy a full set of modules. You just buy what you need and expand later on.
madhan kumar hs - PeerSpot reviewer
software engineer at Capgemini
Alerting precision has reduced incident response times and improved department-level network visibility
The auto-pause sensor during the maintenance window is good without any false alerts, and it prevents me from getting flooded with alerts during planned maintenance, helping department heads understand their own network usage better. It has reduced incident response time by giving clearer ownership of each alert, ensuring alerts go to the proper recipient. SNMP testers and auto-pause are among the best features of PRTG Network Monitor, which is particularly useful for different departments such as HR and finance, where alerts can be filtered accordingly. The alerting features and dashboard of PRTG Network Monitor are very helpful, especially in our industry. However, the dashboard can look cluttered on smaller screens, which is one negative aspect. PRTG Network Monitor has impacted us positively; we have stopped getting flooded with alerts during planned maintenance or unplanned outages. Compared to others, this gives specific alerts very quickly and helps department heads understand their own network usage better, thus reducing incident response time so that each alert has clear ownership.

Quotes from Members

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

Pros

"It does have different modules, so you can extend the solution as you need it, or get as little as you need in the beginning, so you don't have to buy a full set of modules. You just buy what you need and expand later on."
"The big thing is the event management engine, which is really, really nice to use, and it comes at a reasonable price, unlike some of the competitors like Netcool from IBM. Those kinds of tools are hugely expensive and they come as resource-heavy types of solutions. This obviously doesn't require as much hardware, but it does offer similar benefits where you can manage all the events."
"It allows for variable polling times of devices on the network. Because it's all in text, in general, that obviously makes it easier from the automation perspective as well, to modify configuration on the fly, using Puppet and those kind of tools."
"The installer itself is basically something that can be used as a no-questions-asked type of installer. I can use it with automation tools like Chef and Puppet. I don't have to answer some random questions. I can worry about all that stuff later on in the configuration."
"In my case, I prefer to only poll interfaces that have descriptions, and the ones that don't have descriptions, I don't really want to know about them. It does allow for all these bits and pieces and adjustments, and fine tuning to get it to a point where it works for my needs."
"I would boldly say that this is the most scalable network monitoring tool that I know of"
"It improves the status of my infrastructure, from networking devices to real-time machines."
"The most valuable feature of PRTG Network Monitor is the different monitoring probes available."
"The real-time monitoring and alerting are its most valuable features."
"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."
"PRTG Network Monitor has positively impacted my organization as we are not seeing any critical issues or major impacts for our applications, our servers, and our networks nowadays."
"PRTG Network Monitor helped us detect the failing RAID controller before it completely collapsed, allowing us to avoid potential data loss."
"Accessibility, ease of use (Web GUI, MobileApps). In general, compared with other software"
 

Cons

"These kinds of solutions are more node- or device-based solutions. It would be nice in the future if they could be more data-oriented, so it would be easier for me to pull different stats based on ad-hoc requirements; but in a big, centralized database where I can pull specific things, and mix and match the way I want to."
"I've encountered a challenge in my functions, particularly in adding and printing."
"I would like to see more updates available in this solution."
"There's always room for improvement. The high availability feature is good, but it's an area that PRTG could marginally improve. For example, in PRTG, both servers have a different IP, but it would make things a lot easier if they were bound by a single IP."
"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."
"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."
"If PRTG Network Monitor could reconsider the pricing structure to make it more accessible to everyone, it would become a more stable product in the market for the future."
"They need to address the slowness issue that sometimes occurs with PRTG Network Monitor."
"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."
 

Pricing and Cost Advice

Information not available
"I'm paying something like €1000 per year for the maintenance. I've got unlimited sensors."
"The price is actually on the cheaper side. If you're going with the unlimited license code, it's very cheap compared to competitors unless you're going for something free, like Zabbix. But you get what you pay for, and it doesn't have the full suite of products or tools like SolarWinds or a ScienceLogic."
"PRTG Network Monitor's price is a little high."
"We've got the unlimited package... I believe it was around the £15,000 per year mark."
"Licenses are very expensive, so I would like to see cheaper licensing."
"Because we are only on the free version, we have a limited number of sensors. Therefore, we are not monitoring as much as we want to be to obtain historical information."
"The pricing is comparable."
"The licensing fees are billed annually and there are no costs in addition to this."
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Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
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
No data available
Computer Software Company
10%
Financial Services Firm
9%
Comms Service Provider
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business59
Midsize Enterprise19
Large Enterprise47
 

Questions from the Community

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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 was higher at the beginning, but the recurring licensing cost is affordable and reasonable. Overall, the pricing, setup cost, and licensing is fair for our industry. They have quoted us...
 

Overview

 

Sample Customers

Telmex, John Deere, Three Network.
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 Zabbix, Auvik, Datadog and others in Network Monitoring Software. Updated: January 2026.
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