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Untangle NG Firewall vs Zyxel Unified Security Gateway comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 7, 2024

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

Untangle NG Firewall
Ranking in Unified Threat Management (UTM)
10th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
26
Ranking in other categories
Firewalls (30th)
Zyxel Unified Security Gateway
Ranking in Unified Threat Management (UTM)
11th
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Unified Threat Management (UTM) category, the mindshare of Untangle NG Firewall is 3.7%, up from 2.4% compared to the previous year. The mindshare of Zyxel Unified Security Gateway is 3.2%, down from 4.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Unified Threat Management (UTM) Mindshare Distribution
ProductMindshare (%)
Untangle NG Firewall3.7%
Zyxel Unified Security Gateway3.2%
Other93.1%
Unified Threat Management (UTM)
 

Featured Reviews

PK
Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation
Firewall and VPN have strengthened security and now provide reliable bandwidth control
The impact of high-performance packet inspection on network performance metrics is very good. My network has good performance with very low CPU and memory usage. Real-time alerts from Untangle NG Firewall are important for me because every alert I have is sent to my email. The impact of these real-time alerts on my productivity is significant, as I may not be present, but I receive notifications about any problems in my WANs or network and sent to my emails, or something the firewall blocks. I would rate Untangle NG Firewall as an eight overall, considering all the features and capabilities.
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

"The Untangle firewall is a software firewall, so it runs on generic hardware, and we found that was probably the best feature, and it's why we chose it when we started using it three years ago."
"Web Filter is effective, Web Cache offers bandwidth savings, and the VPN setup is easy."
"Untangle NG Firewall is something that I recommend, although we have only tried the software version."
"The majority of our clients are very small businesses, and Untangle devices have been fantastic for these small clients. We've basically standardized our stack to just simply use Untangle. We include the hardware and the service option, which makes it very easy and affordable for us to just simply push that into the monthly per-user costing that we provide as a managed services provider. It's really a no-brainer. They're easy to use, and they're easy to set up and configure. Support is generally good about resolving any issues that we have. We haven't had any real complaints."
"The flexibility to grow, the user-friendliness of the interface, and the common center facility are the advantages of Untangle NG Firewall."
"We find the web filter very valuable."
"The web blocking for my clients and the application control are valuable."
"The reason we chose this solution is because of their support, which is hands down the best support that I have had with a firewall."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
"The solution can scale well."
"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."
 

Cons

"The common center facility that Untangle provides should be available on-premises. There are great corporations here in Mexico that like the Untangle solution, but they don't like the fact that the monitoring and access to the appliance are in the cloud. They request for the common center facility to be available and installed on-premises."
"The product should improve reporting."
"We have a minor issue when assigning IP addresses in the ARP tables. You should be able to go into the ARP tables, look at the IP address and say, "Nope, they need to be on this side on this IP address." The ability to set a DHP reservation from the ARP tables would be great. It's no big deal, but it would be nice to have."
"If you have a site that has more than 50 devices on it, then Untangle quickly becomes cost prohibitive in comparison to several other competitors."
"The solution's licensing count could be improved."
"On their low-end appliance, they could have more memory and the largest storage space. The low-end appliance comes with a too-small hard drive, and it could use a little extra room. It only comes with about 4 gigs or 8 gigs of memory, and the hardware space is only 40 gigs, which is really small."
"The product needs to improve its mobile application."
"The local technical support does not understand the product very well."
"Sometimes it reboots when you least expect it, and that's the main issue."
"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."
"The product has some scalability and data management issues where improvements are required."
"The integration capability is quite challenging. The system is very complicated, and many features are hidden."
"I have never seen it in any company that I've worked with before, and I would advise other companies not to buy it."
 

Pricing and Cost Advice

"The tool's pricing is moderate, and licensing costs are yearly."
"It is the most cost-effective to use."
"It is not expensive. It is cheaper than Fortinet."
"Usually, it's about $350 a year for 12 users, and it's about $600 for 50 users. It's very reasonable as compared to the others. One of the reasons is that they're all open-source. You just buy their appliance and put it in until it dies. Because it's run under open platforms, mine seems to always work on older equipment. I've taken old equipment and put a new hard disk in it. I have taken about nine-year-old computers and put their operating system on them, and ran them like a champ. The only thing that changed was the hard drive because I don't trust a hard drive that's more than three to four years old."
"It is not expensive. The best part is that it is based on the pay-per-use kind of scenario. An increase or decrease in the number of people doesn't make any difference. We are really happy about using this particular scenario."
"For the home use, it's cheap."
"The solution is fairly priced."
"This is not an expensive product. It is affordable and there are different packages available depending on the features that you need, or the sector that you are in."
"This gateway is pretty cheap."
"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."
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Top Industries

By visitors reading reviews
Comms Service Provider
15%
University
10%
Construction Company
9%
Outsourcing Company
9%
Comms Service Provider
19%
Outsourcing Company
9%
Financial Services Firm
9%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise1
No data available
 

Questions from the Community

What needs improvement with Untangle NG Firewall?
I would appreciate improvements to the ad blocker and SSL Inspector of Untangle NG Firewall.
What is your primary use case for Untangle NG Firewall?
My usual use cases for Untangle NG Firewall are just like a firewall and router. The main purpose is for firewall functionality. It has a captive portal, web filter, virus blocker, spam blocker, ba...
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

North American Stamping Group, Cerebral Palsy of North Jersey (CPNJ), Brown County Schools, IN, City of Bridgeton, MO, Lancaster County, SC, Vision Charter School, Clay County Sheriff’s Department, NC, Breakwater School, Boys & Girls Club of Manchester, NH, Admiral Farragut Academy, Flow Companies, No Ordinary Hotel, KECdesign,
Information Not Available
Find out what your peers are saying about Untangle NG Firewall vs. Zyxel Unified Security Gateway and other solutions. Updated: October 2026.
920,939 professionals have used our research since 2012.