OP5 Monitor vs PRTG Network Monitor comparison

ITRS and Paessler GmbH are both solutions in the Network Monitoring Software category. ITRS is ranked #40 with an average rating of 9.0, while Paessler GmbH is ranked #5 with an average rating of 8.6. ITRS holds a 0.6% mindshare in NMS, compared to Paessler GmbH’s 2.7% 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

2,815 Views
2,168 Comparison Views

100% willing to recommend

PRTG Network Monitor

Read 113 PRTG Network Monitor reviews

15,821 Views
11,075 Comparison Views

92% willing to recommend

OP5 Monitor

PRTG Network Monitor

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Executive SummaryUpdated on Mar 29, 2026

PRTG Network Monitor and OP5 Monitor are competitors in the network monitoring domain. PRTG Network Monitor is often viewed as more accessible and cost-effective, while OP5 Monitor is recognized for its robust feature set catering to those prioritizing comprehensive monitoring.

Features: PRTG Network Monitor is known for its versatility in monitoring a wide range of devices without requiring extensive configuration. It excels in providing real-time notifications and has an intuitive interface suitable for quick deployment. OP5 Monitor stands out for its advanced analytical functionalities and customizable monitoring options. Its open-source environment allows for extensive plugin and script use, enhancing its adaptability and customizability.

Room for Improvement: PRTG Network Monitor could enhance its feature set by offering deeper analytics and more customizability options, catering to users needing more advanced configurations. Improving its user interface to accommodate more complex deployments could also be beneficial. OP5 Monitor might improve its ease of use and reduce complexity in initial setup, making it accessible to users who require a more straightforward deployment. Additionally, refining its support resources could enhance the overall user experience.

Ease of Deployment and Customer Service: PRTG Network Monitor is praised for its straightforward deployment process, offering direct support for seamless integration. This simplicity makes it a favored option for organizations looking for quick deployment. OP5 Monitor, while potentially more complex in setup, supports intricate configurations with help from a dedicated service team, allowing for more tailored solutions to meet specific needs.

Pricing and ROI: PRTG Network Monitor provides a user-friendly pricing model with a lower initial investment, leading to quicker ROI through rapid adoption. Its cost-effectiveness is attractive to smaller organizations. OP5 Monitor, although requiring a higher setup cost, justifies its pricing with its extensive monitoring suite, offering substantial returns through comprehensive capabilities, appealing to those who prioritize feature depth over initial cost savings.

To learn more, read our detailed OP5 Monitor vs. PRTG Network Monitor Report (Updated: June 2026).

Buyer's Guide

OP5 Monitor vs. PRTG Network Monitor

June 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

40th

Ranking in IT Infrastructure Monitoring

42nd

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

5th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

113

Ranking in other categories

Cloud Monitoring Software (9th)

Mindshare comparison

As of June 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 2.7%, down from 4.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Mindshare Distribution
Product	Mindshare (%)
PRTG Network Monitor	2.7%
OP5 Monitor	0.6%
Other	96.7%

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

"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."

"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 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."

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

"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."

"Instead of checking the logs each Monday, or checking that applications are running, and checking your ticketing system for angry users, you put this system in place and it monitors and continuously tests everything that is of importance to you and your users."

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

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

More OP5 Monitor pros

"The remote probe feature in PRTG Network Monitor helps you monitor remote systems or your network at a lower cost than other solutions."

"My company runs a large scale SAAS infrastructure with a large mix of technologies, and PRTG is the first software product we have used to accurately alert the right people of trouble."

"PRTG Network Monitor is easy to set up. Within a few minutes, it is operational."

"The reliability of the solution means we are doing less work trying to figure out issues and optimize systems, as it is already supplying us with the information that we need."

"PRTG Network Monitor is user-friendly and offers flexible alerting systems."

"From my somewhat more high-level view, the summary dashboards are excellent, they give me what I need, and having spoken to the operations guys, it gives them everything they need."

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

"The most valuable features of PRTG Network Monitor are user-friendly, and the graphical interface is good for all the network devices that are mapped in this organization. It's very easy to find reports for any devices that we are looking for."

More PRTG Network Monitor pros

Cons

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

"They need to improve the dashboard interface."

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

"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."

"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."

"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."

"To have the additional features costs a lot. It's too much."

"The traffic, the status of the devices can stand improvement."

"I have an issue with DFS, distributed file services... there isn't one by default. Taking into account the difference between DFS and DFSR as well would be great."

"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."

"There is room for improvement in this solution for the performance and third-party monitoring protocols. They need to be updated to the latest ones."

"We would like to monitor certain aspects of the user experience. We should be able to analyze the cause of end user experience, bad or good, so we can do some research and development on our own."

"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..."

"Integration into service management ticketing systems could be better. They should simplify the integration into big service management platforms like ServiceNow, Remedy, and Cherwell. They're really into monitoring, but they don't do any self-resolution. It would be better if the company moved more into the AIOps space so that you could actually kick off some remedies. I know that you can execute some commands from the tool, but you need to develop those all yourself. It would be really handy if they had some auto-remedy scripts that they could develop on top."

More PRTG Network Monitor cons

Pricing and Cost Advice

"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."

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

"If you're looking for a cost effective software I’d suggest this 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."

"PRTG Network Monitor is cheap."

"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."

"On a yearly basis, I believe it's between £1,200 and £1,500."

"It's an annual license that is based on the number of endpoints that we're tracking and using."

"We pay for a perpetual license and we have a support fee."

"The price of PRTG Network Monitor is more expensive than other solutions, such as OP Network Manager."

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

12%

Financial Services Firm

12%

Healthcare Company

12%

Government

10%

Financial Services Firm

10%

Comms Service Provider

Computer Software Company

Manufacturing Company

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	60
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.

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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 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...

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What needs improvement with PRTG Network Monitor?

The reporting features look very technical and that can be improved. If they can change the report so everyone can understand it, that would be helpful.

See all answers

Comparisons

Zabbix vs OP5 Monitor

Compared 9% of the time

Nagios Core vs OP5 Monitor

Compared 8% of the time

Opsview vs OP5 Monitor

Compared 4% of the time

Splunk Observability Cloud vs OP5 Monitor

Compared 3% of the time

Cisco Intersight vs OP5 Monitor

Compared 3% of the time

More OP5 Monitor Competitors

Zabbix vs PRTG Network Monitor

Compared 4% of the time

Centreon vs PRTG Network Monitor

Compared 4% of the time

SolarWinds NPM vs PRTG Network Monitor

Compared 3% of the time

WhatsUp Gold vs PRTG Network Monitor

Compared 3% of the time

Splunk AppDynamics vs PRTG Network Monitor

Compared 3% of the time

More PRTG Network Monitor Competitors

Product Reports

Buyer's Guide

OP5 Monitor

June 2026

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Buyer's Guide

PRTG Network Monitor

June 2026

Download PRTG Network Monitor product report

Overview

OP5 Monitor delivers real-time IT infrastructure monitoring with extensive customization options through open-source plugins. Its intuitive interface and cost-effectiveness make it a preferred choice for efficient performance monitoring and task automation.

OP5 Monitor integrates seamlessly with systems, offering customizable dashboards and efficient performance tracking for networks, servers, applications, databases, and cloud environments. It supports LDAP and local user accounts, providing timely insights to prevent downtime. The documentation enhances integration ease, though its user interface could benefit from updates. Improved APIs, better report capabilities, and enhanced platform integration are needed. Effective in healthcare, maritime, and diverse sectors, it provides global deployments with tailored monitoring solutions.

What are the key features of OP5 Monitor?

Real-Time Monitoring: Tracks performance and alerts users immediately on anomalies.
Seamless Integration: Works effectively with existing systems and infrastructure.
Extensive Customization: Offers open-source plugins for personalized configurations.

What benefits or ROI should users consider in reviews for OP5 Monitor?

Cost-Effectiveness: Provides robust features at a competitive price.
User-Friendly Interface: Simplifies monitoring processes for administrators.
Efficiency in Performance Monitoring: Automates tasks and optimizes resource use.

In industries like healthcare, maritime, and others, OP5 Monitor automates tracking and alerts, easing manual checks to enhance quality. Its global deployments provide tailored monitoring for CPU, memory, and disk space, efficiently managing both on-premise and cloud environments for large-scale operations.

ITRS

PRTG Network Monitor offers seamless network health tracking with flexible alerting and robust scalability. Its real-time monitoring and compatibility across diverse technologies enhance operational efficiency.

PRTG Network Monitor stands out by providing intuitive dashboards and detailed reporting to efficiently monitor network health, significantly reducing manual checks. Its quick setup and comprehensive compatibility cater to diverse environments. The alert system and real-time monitoring enable proactive maintenance, while custom scripting and a broad range of sensors allow for personalized monitoring options. Enhancements are suggested in database management, integration capabilities, Unix support, pricing, application performance, and dashboard customization. Users benefit from enhanced error messaging, flexible licensing, and better training resources.

What are the key features of PRTG Network Monitor?

Ease of Use: Intuitive dashboard makes network monitoring straightforward.
Flexible Alerting: Provides prompt notifications for proactive maintenance.
Scalability: Adapts to various network sizes and complexities.
Compatibility: Works across diverse technologies and environments.
Custom Scripting: Allows tailored monitoring options for specific needs.

What benefits should users seek in PRTG Network Monitor reviews?

Operational Efficiency: Reduces the need for manual network checks.
Real-Time Monitoring: Enables instant response to potential issues.
Enhanced Infrastructure Oversight: Facilitates comprehensive management of network devices.
Proactive Maintenance: Alerts help prevent potential disruptions.
Central Dashboard: Manages infrastructure across multiple locations effectively.

In industries like IT, telecommunications, and healthcare, PRTG Network Monitor is employed for comprehensive monitoring of systems, servers, and networks. It assists in tracking uptime, connectivity, and alerts for potential issues, offering tailored options like monitoring traffic flows and hardware health through custom sensors and scripts.

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

June 2026

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