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Zscaler Cloud Firewall vs Zyxel Unified Security Gateway comparison

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Comparison Buyer's Guide

Executive Summary

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

Zscaler Cloud Firewall
Average Rating
8.2
Reviews Sentiment
6.3
Number of Reviews
20
Ranking in other categories
Firewalls (36th)
Zyxel Unified Security Gateway
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
Unified Threat Management (UTM) (11th)
 

Featured Reviews

Farzad Ebrahimi - PeerSpot reviewer
Senior Devsecops Cloud Cybersecurity Specialist at CGI
Cloud data protection has improved and automation reduces manual security tasks
The best features that Zscaler Cloud Firewall offers are that it is AI powered and automated. The automation especially reduces manual tasks as we used to have lots of manual activities for such services. Reporting is very powerful regarding the features of Zscaler Cloud Firewall. Zscaler Cloud Firewall has positively impacted my organization by increasing ROI, especially by reducing costs.
reviewer2399337 - PeerSpot reviewer
Sales and technical consultant at a manufacturing company with 10,001+ employees
User has benefited from stable performance and effective completion of security tasks
I use it mostly for VPN and for some firewall solutions When considering my main use case with VPN, I can say that I got the Zyxel Unified Security Gateway, and it works fine. However, we are thinking about using a different solution based on open source because Zyxel Unified Security Gateway…

Quotes from Members

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

Pros

"Zscaler is the Rolls Royce for this kind of solution."
"Includes advanced tech protection."
"Once you have Zscaler running you have access to configure it however you want."
"Zscaler Cloud Firewall has positively impacted my organization by increasing ROI, especially by reducing costs."
"It helps a lot of companies to reduce their downtime. Also, It helps businesses in terms of being secured and protected from any threats."
"With regards to ease, with regards to scalability, with regards to performance and support, those are the kind of top features that I would always look at and I have had a great experience in general."
"I like the ease of deployment and its flexibility. We don't need to deal with license, quotes, procurement, delivery, and installation. Everything is software-based, and it's very easy to operate."
"We like URL filtering, category filtering, and content filtering."
"This is a capable appliance and the standard features work well for us."
"The Zyxel Unified Security Gateway solution is stable and does its job effectively."
"The cost is very low."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
"The solution can scale well."
 

Cons

"The needed improvements involve scalability, which is something I wish they would address."
"Currently, the Data Leak Prevention is only for web filtering and there is nothing for email and the USB, so it would be an improvement if that could be included."
"Pricing is a challenge."
"There are some areas it could improve when it comes to blocking, we have to block some things manually."
"It would be better if they improved their policy, package visibility, and flexibility while we're creating rules for inspection. It could also be cheaper or more things could be included in the basic package. In the next release, I would like better coverage in the Asia Pacific region and better quality of service."
"Instead of the standard license, they should certainly provide customers with the visibility to access and view the logs."
"Its technical support services could be better."
"I don't have the visibility of a control dashboard or a network management system."
"The integration capability is quite challenging. The system is very complicated, and many features are hidden."
"Although manageable, the user interface is a little bit slow and could be improved. The advanced UI allows me to do whatever I want, but this is where the issue of speed exists."
"I have never seen it in any company that I've worked with before, and I would advise other companies not to buy it."
"Sometimes it reboots when you least expect it, and that's the main issue."
"The product has some scalability and data management issues where improvements are required."
 

Pricing and Cost Advice

"On a scale from one to ten, where one is cheap, and ten is expensive, I rate the solution's pricing an eight out of ten."
"Zscaler is priced too high compared to the cost of Fortinet."
"There are licensing costs, and I would not say that it's a cheap vendor."
"It is expensive for small businesses."
"It is not the most budget-friendly solution, but it's important to consider its overall value."
"There are different subscription models available."
"The licensing is on a yearly basis. It is somewhere around 30 or 40 pounds per user for our organization."
"There is an annual license required for the use of the Zscaler Cloud Firewall."
"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."
"This gateway is pretty cheap."
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915,341 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Manufacturing Company
11%
Construction Company
10%
Outsourcing Company
9%
Comms Service Provider
8%
Comms Service Provider
18%
Outsourcing Company
9%
Financial Services Firm
8%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise13
No data available
 

Questions from the Community

Which lesser known firewall product has the best chance at unseating the market leaders?
Netscope, Zscaler if they continue route they are on now. FIrewalls needs great deal of automation on each end, datacenter and endpoint. In between you have branch office. So blending EPP and firew...
What is your experience regarding pricing and costs for Zscaler Cloud Firewall?
My experience with pricing, setup cost, and licensing was fine.
What needs improvement with Zscaler Cloud Firewall?
I think Zscaler Cloud Firewall can be improved by adding more features. The needed improvements involve scalability, which is something I wish they would address.
What is your experience regarding pricing and costs for Zyxel Unified Security Gateway?
I cannot definitively comment on whether Zyxel Unified Security Gateway is an affordable product as I haven't done comparisons with other solutions. When our license expires, we plan to explore ope...
What needs improvement with Zyxel Unified Security Gateway?
The integration capability is quite challenging. The system is very complicated, and many features are hidden. I'm looking for something new that is slightly simpler. Regarding user experience, the...
What is your primary use case for Zyxel Unified Security Gateway?
I use it mostly for VPN and for some firewall solutions. When considering my main use case with VPN, I can say that I got the Zyxel Unified Security Gateway, and it works fine. However, we are thin...
 

Overview

 

Sample Customers

Zenith Live, Azure, Carlsberg Group
Information Not Available
Find out what your peers are saying about Zscaler Cloud Firewall vs. Zyxel Unified Security Gateway and other solutions. Updated: October 2026.
915,341 professionals have used our research since 2012.