Observer GigaStor vs PRTG Network Monitor comparison

Viavi Solutions and Paessler GmbH are both solutions in the Network Monitoring Software category. Viavi Solutions is ranked #86, while Paessler GmbH is ranked #5 with an average rating of 8.4. Viavi Solutions holds a 0.4% mindshare in NMS, compared to Paessler GmbH’s 3.3% mindshare. Additionally, 100% of Viavi Solutions users are willing to recommend the solution, compared to 92% of Paessler GmbH users who would recommend it.

Observer GigaStor

Read 7 Observer GigaStor reviews

1,238 Views
780 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

Observer GigaStor

PRTG Network Monitor

Comparison Buyer's Guide

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Executive SummaryUpdated on Mar 29, 2026

PRTG Network Monitor and Observer GigaStor compete in the network monitoring space. PRTG has an advantage in pricing and customer support, whereas Observer GigaStor takes the lead in feature robustness.

Features: PRTG Network Monitor provides customizable dashboards, strong integration capabilities, and extensive alerting and reporting functions. It is optimized for smaller infrastructures with its user-friendly interface. Observer GigaStor specializes in advanced packet analysis and offers comprehensive forensic capabilities, suitable for large-scale data analysis and diagnostics. It excels in providing detailed insights through its powerful diagnostic tools.

Room for Improvement: PRTG Network Monitor could enhance its packet analysis features and expand its diagnostic tools. Adding more in-depth forensic capabilities would make PRTG more appealing to larger enterprises. Observer GigaStor might benefit from simplifying its user interface and setup process for less technical users. Additionally, a more scalable pricing model could enhance its accessibility to medium-sized businesses.

Ease of Deployment and Customer Service: PRTG Network Monitor is praised for its straightforward setup process and responsive customer service, making it easy to deploy for businesses with limited IT resources. Observer GigaStor, while more complex, offers comprehensive professional support and training, providing users with detailed documentation and guided assistance throughout the deployment process.

Pricing and ROI: PRTG Network Monitor is cost-effective with its pay-as-you-grow pricing model, appealing to businesses with budget constraints, offering scalability and a satisfactory ROI. Observer GigaStor has a premium pricing structure, providing substantial ROI through advanced features and is suited for environments requiring intensive data processing and network forensic capabilities.

To learn more, read our detailed Observer GigaStor vs. PRTG Network Monitor Report (Updated: March 2026).

Buyer's Guide

Observer GigaStor vs. PRTG Network Monitor

March 2026

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Helped 885,376 peers since 2012

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

Observer GigaStor

Ranking in Network Monitoring Software

86th

Average Rating

9.0

Reviews Sentiment

8.1

Number of Reviews

Ranking in other categories

Network Troubleshooting (14th), Network Packet Broker (NPB) (9th)

PRTG Network Monitor

Ranking in Network Monitoring Software

5th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

113

Ranking in other categories

IT Infrastructure Monitoring (4th), Cloud Monitoring Software (8th)

Mindshare comparison

As of March 2026, in the Network Monitoring Software category, the mindshare of Observer GigaStor is 0.4%, up from 0.2% 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%
Observer GigaStor	0.4%
Other	96.3%

Network Monitoring Software

Featured Reviews

Jeroen-Dubbelman

Director at Bitrate

Aids significantly in the threat-hunting process and provides a score-based evaluation of user experience

There are many valuable features, but understanding end-user response times stands out. It provides a score-based evaluation of user experience, helping customers quickly pinpoint whether issues originate from the network, server, client, or application. Additionally, it facilitates in-depth analysis of application dependencies. The retrospective network analysis capability of Observer GigaStor has been beneficial. It's a pivotal feature for network performance solutions. However, I prefer to consider the entire solution suite - GigaStor, along with GigaFlow and Apex - for comprehensive network visibility and monitoring. So, I prefer to integrate all three solutions to provide the best visibility. They complement each other well, with Apex aggregating and correlating data from both GigaStor and GigaFlow to enhance environmental understanding and troubleshooting efficiency.

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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

"This solution allows us to see exactly what is going on in the network and we can very quickly solve issues with users."

"It's able to capture packets and, after a long time, you can come and use that information; to check, to analyze - everything you would want to do. So it's very good and helpful if you want to protect your data. It is stored in a certain place where you can access it every time you want to analyze it."

"It can help to write your rules, organize firewalls, your block, and also your protocols and IP address to come in or out of your network."

"This solution allows us to see exactly what is going on in the network and we can very quickly solve issues with users."

"The ability to capture packets. It is not only for monitoring. That is very important for a company that wants to keep an eye on the packets, the transactions, the flows..."

"Enables us to go back in time to capture an issue and analyze it for a solution, and this after the fact analysis is key to overcoming the bump in the night issues."

"There are many valuable features, but understanding end-user response times stands out. It provides a score-based evaluation of user experience, helping customers quickly pinpoint whether issues originate from the network, server, client, or application. Additionally, it facilitates in-depth analysis of application dependencies."

"Go take a look at it. It's a great product and has great capabilities."

More Observer GigaStor pros

"PRTG gives us true visibility of the downtime of particular circuit functions, so if a circuit is up but not routing traffic, I will know with this tool and can write a customized script for a sensor to detect specific things."

"PRTG Network Monitor helps us quickly and easily discover a large number of sensors, so we can spend minimal time monitoring customer sites."

"My opinion is that this solution is not very expensive."

"It allows me to detect problems with the network, and it helps users propose the solution to resolve the problem."

"Good compilation of the system's information."

"We can see trends for a lot of different things, such as hard drive space and bandwidth usage. We can see and plan for the future by knowing, "We're sort of at 75% capacity now. In three months time, we know we're going to be up to 90%,so we need to plan ahead for it, getting upgrades booked in place." Since things like this take time and effort, it's handy to see trends into the future of where our company is going."

"PRTG gives us true visibility of the downtime of particular circuit functions. So if a circuit is up but not routing traffic, I will know with this tool. I can write a customized script for a sensor to detect specific things."

"The most valuable features of PRTG Network Monitor are bandwidth utilization, user-friendliness, all past report simple retrievals, and timeout features. Additionally, if the solution does go down it is simple to bring it back."

More PRTG Network Monitor pros

Cons

"GigaStor feeds into Apex. So, the area where there could be improvement would be in artificial intelligence. For example, the incorporation of more advanced machine learning or AI capabilities could enhance its functionality."

"The interface is pretty complex, so for the average user, it takes a while to get up to speed with it. I would like it to be more user-friendly."

"I would like to have more than 4TB of storage available in the portable version of this solution."

"As of this moment, the graphics might need some improvement, because a lot of the information there must be input first to have full potential."

"The Observer Console UI is consistent and stable, but could use some updating to be more modern."

"Maybe the graphical user interface could be simplified to allow people to use it more easily. It's already good, but they can work more on it to make it even easier."

"Graphics need improvement. Because a lot of the information there you have to input first in some case to have full potential. It could be more automated."

More Observer GigaStor cons

"In terms of sensors and probes, it would be really cool if PRTG had a purely Azure-based solution. We had to install a probe on one of our cloud servers and then let that probe out from there. It would be really cool if it just monitored Azure without having to install something on the device."

"They could improve the process of updating the license."

"The technical support from PRTG needs significant improvement."

"PRTG Network Monitor could improve the price."

"I would like to see them take their graphing tools and convert them into a collector so that we can point telemetry to them"

"With custom sensors, there is a lot of work which needs to be done in the background, just for it to be tailor-made for the specific thing that we are actually monitoring."

"More training videos for installing and configuring PRTG Network Monitor would have been nice, especially when working with a lot of devices."

"PRTG's application monitoring sensor is not strong."

More PRTG Network Monitor cons

Pricing and Cost Advice

"It depends on the requirements you have. There are three types of license. There's the updates license, the work group license, and the workstation license."

"It's quite expensive."

"Cost was a factor when selecting this solution, but it just did everything we wanted it to do."

"We are satisfied with the price."

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

"When you buy PRTG, everything comes in one bundle. Licensing is very easy."

"The scalability is there, but smaller companies might need CAM software to be able afford the product."

"Pricing for PRTG Network Monitor is a nine out of ten. It meets my company's budget and monitoring requirements. My company is on a perpetual license."

"It is expensive."

"I'm paying something like €1000 per year for the maintenance. I've got unlimited sensors."

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…

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Top Industries

By visitors reading reviews

Construction Company

17%

Financial Services Firm

15%

Wholesaler/Distributor

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	5
Large Enterprise	3

By reviewers
Company Size	Count
Small Business	59
Midsize Enterprise	19
Large Enterprise	50

Questions from the Community

What do you like most about Observer GigaStor?

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What is your experience regarding pricing and costs for Observer GigaStor?

I would rate the pricing a ten out of ten. It's quite expensive.

See all answers

What needs improvement with Observer GigaStor?

GigaStor feeds into Apex. So, the area where there could be improvement would be in artificial intelligence. For example, the incorporation of more advanced machine learning or AI capabilities coul...

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 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

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

Wireshark vs Observer GigaStor

Compared 14% of the time

Gigamon Deep Observability Pipeline vs Observer GigaStor

Compared 9% of the time

Viavi Observer Platform vs Observer GigaStor

Compared 8% of the time

IxChariot vs Observer GigaStor

Compared 7% of the time

NETSCOUT nGeniusONE vs Observer GigaStor

Compared 6% of the time

More Observer GigaStor Competitors

Zabbix vs PRTG Network Monitor

Compared 5% of the time

Centreon vs PRTG Network Monitor

Compared 4% 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

More PRTG Network Monitor Competitors

Product Reports

Buyer's Guide

Observer GigaStor

March 2026

Download Observer GigaStor product report

Buyer's Guide

PRTG Network Monitor

March 2026

Download PRTG Network Monitor product report

Overview

Observer GigaStor is a network analysis tool that comes in a variety of form factors, including rack mount, portable, and virtual. Capable of storing up to a petabyte of traffic for later analysis, GigaStor helps ensure optimal network and application performance.

Viavi Solutions

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

Cisco Systems, Hawaiian Telecom, Renown Health, State of Nevada, U.S. Department of Veteran Affairs, Allstate Insurance, Jack Henry & Associates, United States Airforce, US Bank, Blue Cross Blue Shield of Minnesota, Texas Tech University Health Sciences Center, Chicago Board Options Exchange

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

Observer GigaStor vs. PRTG Network Monitor

March 2026

Free Report: Observer GigaStor vs. PRTG Network Monitor

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