OP5 Monitor vs PRTG Network Monitor comparison

ITRS and Paessler GmbH are both solutions in the Network Monitoring Software category. ITRS is ranked #38 with an average rating of 9.0, while Paessler GmbH is ranked #5 with an average rating of 8.4. ITRS holds a 0.7% mindshare in NMS, compared to Paessler GmbH’s 3.3% mindshare. Additionally, 100% of ITRS users are willing to recommend the solution, compared to 92% of Paessler GmbH users who would recommend it.

OP5 Monitor

Read 7 OP5 Monitor reviews

1,534 Views
1,212 Comparison Views

100% willing to recommend

PRTG Network Monitor

Read 112 PRTG Network Monitor reviews

9,185 Views
6,338 Comparison Views

92% willing to recommend

OP5 Monitor

PRTG Network Monitor

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 28, 2025

PRTG Network Monitor and OP5 Monitor are products in network management, each with its strengths. PRTG is often favored for its pricing and fast support, while OP5 stands out with robust features, seen as worth the investment for many users.

Features: PRTG Network Monitor offers comprehensive capabilities with predefined sensors and an intuitive interface, suitable for easy setup. It provides out-of-the-box monitoring checks, accessibility via web and mobile apps, and reliable sensing performance. On the other hand, OP5 Monitor is notable for its customizable features, extensive real-time data provision, and ease in writing and using custom scripts for advanced network insights.

Room for Improvement: PRTG could enhance its capability to customize beyond certain limits and ensure that new versions retain strong bandwidth monitoring. Additionally, improving the durability of its mobile interface would be beneficial. OP5 Monitor may require improvements in documentation clarity and enhancement of automation features to reduce manual input. Additional resource optimization for large-scale environments could increase efficiency.

Ease of Deployment and Customer Service: PRTG Network Monitor is commended for its quick deployment thanks to straightforward installation processes and robust customer support. OP5 Monitor, being flexible, might require extended initial setup and configuration time, but it allows for advanced customization, making it ideal for users with specific needs requiring extensive solutions.

Pricing and ROI: PRTG Network Monitor typically offers a cost-effective initial setup with pricing plans scaling according to network size, making it a good fit for smaller to medium operations. OP5 Monitor, despite a potentially higher entry cost, delivers solid returns in larger organizations due to its scalable features and extensive capabilities, offering substantial value in complex deployments.

To learn more, read our detailed OP5 Monitor vs. PRTG Network Monitor Report (Updated: December 2025).

Buyer's Guide

OP5 Monitor vs. PRTG Network Monitor

December 2025

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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

OP5 Monitor

Ranking in Network Monitoring Software

38th

Ranking in IT Infrastructure Monitoring

36th

Average Rating

8.6

Reviews Sentiment

4.4

Number of Reviews

Ranking in other categories

No ranking in other categories

PRTG Network Monitor

Ranking in Network Monitoring Software

5th

Ranking in IT Infrastructure Monitoring

4th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

112

Ranking in other categories

Cloud Monitoring Software (9th)

Mindshare comparison

As of January 2026, in the Network Monitoring Software category, the mindshare of OP5 Monitor is 0.7%, down from 0.8% 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
Product	Market Share (%)
PRTG Network Monitor	3.3%
OP5 Monitor	0.7%
Other	96.0%

Network Monitoring Software

Featured Reviews

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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madhan kumar hs

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.

Read full review

Quotes from Members

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

Pros

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

"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."

"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. The logger is a part of the software, but it's not the most important point of it."

"With limited hardware or a virtual machine, you can address a huge network, hundreds of thousands of elements that need to be monitored. Other commercial software is not on that level."

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

"It helps the entire organization become digitally enabled."

"There is a simplicity to setting up the extra sensors. It's really easy for us to build infrastructure and start monitoring very quickly."

"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."

"It is a user-friendly solution."

"The simplicity is what I appreciate about PRTG Network Monitor."

"It is easy to use and intuitive, which is really important. It does what it says on the box by giving you a visual of the state of what is going on at any one time."

"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 sensors and remote probes are phenomenal. We use them for all of our global sites. The problem with our global sites are that they are all VPNs. If the link goes down, you can't monitor other solutions, as it just goes off the grid. Having remote probes allows them to still carry on and get the information that we need when it comes back up, sending the information to us."

More PRTG Network Monitor pros

Cons

"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. There is some cool stuff going on in that direction."

"We do not get performance reports properly."

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

"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."

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

"They need to improve the dashboard interface."

"The solution is useful for tweaking. However, there have been some negative experiences, such as limited report capabilities. The only report available is in PDF format, making it difficult for teams managing multiple servers to extract data in Excel format. The speaker recommends that the team improve the report capabilities to better serve users."

"Scalability is the only major sticking point for me. There is a recommended number of sensors, which is around 10,000 and we're double that... The only option we have to scale is to buy another core, which would be a separate, stand-alone instance..."

"We run it in a cluster, so we have two that run together. The cluster behind it is sketchy at times."

"The icons on PRTG's network diagram are hard to find. For example, finding the icons for firewalls and servers is difficult, so we're struggling to create the network topology."

"In our organization, we encounter performance issues with our PRTG probe service. I saw documentation from the vendor or Paessler mentioning that there are limitations for WMI sensors. Other than that, we are okay with PRTG."

"While the desktop app is good, they could slightly improve it. We would like it to be a single pane of glass. At the moment, you can only see certain portions of information. You have to scroll through to make it more granular. We want them to develop the desktop app to be more user-friendly."

"This solution is a good product so far, but I haven't been using it long enough to know how it could be improved."

"When using PRTG Network Monitor it is beneficial if you have prior experience with it, the user interface could improve."

"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."

More PRTG Network Monitor cons

Pricing and Cost Advice

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

"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..."

"The pricing is reasonable for the features provided."

"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."

"We are using the premium version of PRTG Network Monitor. The price of the solution is a bit higher than competitors but it is worth the extra money. However, it would be helpful if the price was lower."

"The pricing is okay and it is cheaper than some competing products."

"PRTG Network Monitor's price is a little high."

"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 used a product called SolarWinds in the past, and its cost was high. Whereas, PRTG came in at a third of SolarWind's cost."

"The ability to use the base version with 100 free sensors is great. The cost on other packages can be very reasonable."

More PRTG Network Monitor pricing and cost advice

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Comparison Review

it_user174738

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…

Read full review

Top Industries

By visitors reading reviews

Government

14%

Manufacturing Company

14%

Financial Services Firm

12%

Computer Software Company

10%

Financial Services Firm

Comms Service Provider

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	2
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	59
Midsize Enterprise	19
Large Enterprise	47

Questions from the Community

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.

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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.

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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...

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What do you like most about PRTG Network Monitor?

The tool is integrated with our email for the alerts.

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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...

See all answers

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Compared 6% of the time

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Compared 5% of the time

SolarWinds NPM vs PRTG Network Monitor

Compared 4% of the time

Checkmk vs PRTG Network Monitor

Compared 4% of the time

Nagios XI vs PRTG Network Monitor

Compared 3% of the time

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Product Reports

Buyer's Guide

OP5 Monitor

January 2026

Download OP5 Monitor product report

Buyer's Guide

PRTG Network Monitor

January 2026

Download PRTG Network Monitor product report

Overview

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

PRTG Network Monitor runs on a Windows machine within your network, collecting various statistics from the machines, software, and devices which you designate. PRTG comes with an easy-to-use web interface with point-and-click configuration. You can easily share data from it with non-technical colleagues and customers, including via live graphs and custom reports. This will let you plan for network expansion, see what applications are using most of your connection, and make sure that no one is hogging the entire network just to torrent videos.

To monitor a large IT environment, it's important to be able to scale PRTG up. Paessler PRTG Enterprise Monitor includes all the proven capabilities of PRTG Network Monitor, which are enhanced by exclusive ITOps Board for a service-oriented, central overview of multiple PRTG servers.

Paessler GmbH

Sample Customers

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

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

Buyer's Guide

OP5 Monitor vs. PRTG Network Monitor

December 2025

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