OP5 Monitor vs PRTG Network Monitor comparison

ITRS and Paessler GmbH are both solutions in the Network Monitoring Software category. ITRS is ranked #39 with an average rating of 9.0, while Paessler GmbH is ranked #5 with an average rating of 8.4. ITRS holds a 0.6% 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

1,753 Views
1,367 Comparison Views

100% willing to recommend

PRTG Network Monitor

Read 113 PRTG Network Monitor reviews

11,368 Views
7,958 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: March 2026).

Buyer's Guide

OP5 Monitor vs. PRTG Network Monitor

March 2026

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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

39th

Ranking in IT Infrastructure Monitoring

38th

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

113

Ranking in other categories

Cloud Monitoring Software (8th)

Mindshare comparison

As of March 2026, in the Network Monitoring Software category, the mindshare of OP5 Monitor is 0.6%, down from 0.8% compared to the previous year. The mindshare of PRTG Network Monitor is 3.3%, down from 4.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Mindshare Distribution
Product	Mindshare (%)
PRTG Network Monitor	3.3%
OP5 Monitor	0.6%
Other	96.1%

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

"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."

"Its open-source environment is accessible to everyone."

"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."

"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."

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

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

"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."

"Especially with the API, where I can use the data with many other systems, it's great."

More OP5 Monitor pros

"The solution has benefited our organization by showing us when devices are up and when you are down, and we can do an analysis on the availability of the resources."

"The most valuable features of PRTG Network Monitor are bandwidth utilization, user-friendliness, all past report simple retrievals, and timeout features."

"Nice product with an easy interface to use and a large variety of sensors."

"Network monitoring - it's able to collect lots of detailed information on network devices and network traffic."

"If you're looking from a holistic infrastructure deployment and monitoring perspective, it's a good tool to use and to start with."

"The feature set is very strong compared to other products that I have used; it's great because it does everything that we need it to do, it's easy to use, and it looks great when you present it in an open office environment."

"Personally, in my 20 years of experience working with monitoring systems, this is the best."

"The most valuable feature of PRTG Network Monitor is real-time monitoring."

More PRTG Network Monitor pros

Cons

"They need to improve the dashboard interface."

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

"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."

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

"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."

"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."

"We do not get performance reports properly, which needs improvement."

"They need to improve the dashboard interface."

More OP5 Monitor cons

"PRTG Network Monitor can improve by having better integration with devices."

"There's always room for improvement. The high availability feature is good, but it's an area that PRTG could marginally improve."

"I would like to see a more robust platform and a new dashboard. In addition, the code is good, but it needs improvement."

"The free version only gives us 100 free sensors to use. It would be nice if there was double that."

"The desktop app is terrible."

"The possibility to export the part of the sensor we made would be helpful."

"PRTG Network Monitor could improve the price."

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

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."

"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 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."

"In my company now, we are using the free version."

"It is expensive."

"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."

"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 price of PRTG Network Monitor is reasonable for the features that the solution provides. They charge you per monitoring, not per node, it is per port that you need for a device."

"The licensing fees are billed annually and there are no costs in addition to this."

"While I am not the person who deals with pricing, I would say that we pay around 1000 pounds a year."

"PRTG Network Monitor is very expensive."

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

Manufacturing Company

13%

Government

12%

Financial Services Firm

12%

Healthcare Company

Computer Software Company

Comms Service Provider

Financial Services Firm

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	50

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.

See all answers

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.

See all answers

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...

See all answers

What do you like most about PRTG Network Monitor?

The tool is integrated with our email for the alerts.

See all answers

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

Comparisons

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Compared 13% of the time

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Compared 11% of the time

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Compared 8% of the time

Splunk Observability Cloud vs OP5 Monitor

Compared 6% of the time

Cisco Intersight vs OP5 Monitor

Compared 5% of the time

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Zabbix vs PRTG Network Monitor

Compared 5% of the time

Centreon vs PRTG Network Monitor

Compared 5% of the time

Checkmk vs PRTG Network Monitor

Compared 4% of the time

SolarWinds NPM vs PRTG Network Monitor

Compared 3% of the time

SCOM vs PRTG Network Monitor

Compared 3% of the time

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Product Reports

Buyer's Guide

OP5 Monitor

March 2026

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Buyer's Guide

PRTG Network Monitor

March 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

March 2026

Free Report: OP5 Monitor vs. PRTG Network Monitor

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