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KerioControl vs Zscaler Cloud IPS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 19, 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

KerioControl
Ranking in Intrusion Detection and Prevention Software (IDPS)
19th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
57
Ranking in other categories
Firewalls (31st), Unified Threat Management (UTM) (11th)
Zscaler Cloud IPS
Ranking in Intrusion Detection and Prevention Software (IDPS)
16th
Average Rating
9.0
Reviews Sentiment
6.8
Number of Reviews
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of KerioControl is 1.7%, up from 1.2% compared to the previous year. The mindshare of Zscaler Cloud IPS is 1.6%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Intrusion Detection and Prevention Software (IDPS)
 

Featured Reviews

Constantnos Achilleos - PeerSpot reviewer
Leveraging geo-tagging and web filtering for enhanced network security
The solution is used for site-to-site VPN connections and it is valued for its cost efficiency and easy connectivity. It is especially beneficial for multi-site VPNs and is used in about fifteen different components KerioControl has provided a financial benefit as it allows purchasing one license…
Boubker KASTOUNI - PeerSpot reviewer
Stable platform with good technical support services
We use Zscaler Cloud IPS for internet access, extended log store, cloud application control, and advanced threat protection We encounter issues sharing IP addresses with other companies using the software. We have been using Zscaler Cloud IPS for ten years. Stability-wise, I rate the software a…

Quotes from Members

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

Pros

"The most valuable features include geo-tagging, which blocks all other IPs except for the specified accounts, and web filtering."
"It has helped our organization with testing."
"The solution’s firewall and intrusion detection features are quite good because you can see exactly who is attacking you and who is getting blocked."
"Compared to other solutions, accounting and live monitoring of firewall status are very good features in KerioControl."
"In terms of the comprehensiveness of the security features, it does a great job of laying out what it does. It's fairly easy to edit and research. Some of the features were turned on by our IT company and I was able to easily find other features on my own by searching for videos on the internet. I've been able to block certain websites, and content filter, as well as manage some of our bandwidth because we live stream on Sunday. I'm able to dedicate bandwidth for the encoder that goes to the internet. It always has enough bandwidth, no matter how many people are on the network. That's really helpful."
"Kerio Control can be scaled easily."
"​Setup is simple. The Kerio interface is very intuitive.​"
"I want to have access to my computer from the outside and Kerio Control plays a role because it has a VPN... It is more reliable because it's a smaller group of computers to target for hackers and the like. The VPN works very well. I use it to work remotely very easily and exchange information, both to and from the location where it's deployed, and there have been no problems there."
"The initial setup is straightforward and easy in comparison with other solutions."
"The product's most valuable feature is complete SSL inspection."
"The best feature is that Zscaler allows for a separation between cloud applications and URL filtering. For example, under the cloud application segment, I can bypass Microsoft Office 365 without the need to add URLs manually. It's one click, so that's handy."
"The initial setup process is easy."
"Cloud IPS integration is seamless, and it uses a Zero Trust model. It also simplifies overall user access management."
 

Cons

"I would like to see a little improvement in their technical support when you have a problem. I may be a little jaded because I came from Kerio when we could call and get a person on the phone who worked on the product. Every tech had their own demo setup. They had instant messaging capability with the developers. If we found a problem, then we could get a result for it quickly. Now, the product seems to be 24 hours. They have also gone to the model that if you need quicker support, then they now charge you additional for the exact same level of support that they used to give. I am assuming it's the exact same level of support that they say it is. I'm not paying extra for it. That's the biggest flaw with the product."
"The denial of service could also be improved. There recently was a big issue with denial of service attacks and it was a bit laborious."
"I would like it if the interface section had multiple failovers. Although I do have three connections, just in case our physical cables get disconnected, I can only set up one failover as a backup. So, if for some reason our fiber and our AFM went down together, I would have to have it search for our 4G modem. I'd love to have extra backups running."
"I would like for there to be a difference between international and national links."
"I would like the customer statistics to be more user-friendly. It should explain more what users have been doing throughout the day. Sometimes, it'll just say they downloaded a big file. Meanwhile, they were connected through a VPN."
"After the takeover by GFI, one of the things that Kerio built was MyKerio environment. This has not been very reliable because I get many messages that MyKerio is not functioning. For some reason, there are things that they changed and it is not very reliable at this moment, instead I have to connect to the firewall to see what is happening."
"I can no longer renew my subscription directly with GFI but we have to go through third-party resellers like CDW. The first time I did it with CDW. I went to CDW and it was almost like they didn't even know anything. They didn't know what package I was supposed to get. Then after I got it, it took almost five days to get everything working."
"There isn't a lot to be improved. It works well as it is, but they can maybe improve the reporting side."
"They have given limited free access for a year. Instead, they should increase the file size and give limited free access for around two months. It will allow engineers to evaluate the product."
"We encounter issues sharing IP addresses with other companies using the software."
"There is always room for improvement."
"When it comes to scalability, the IPsec could be improved."
"We recently had a significant issue with Zscaler. I think they have too many customers and some of their connection edge nodes went down because there were too many requests. I think they aren't scaling enough to keep up with the demand in some areas. That's one thing they should improve."
 

Pricing and Cost Advice

"Our clients see ROI with Kerio Control, as they are saving bandwidth costs."
"There's a one-time fee. For KerioConnect, it's just a server. With KerioControl, you have an option. You can virtualize it on a VMware system or have the hardware. I think mid-range or desktop KerioControl hardware could cost around 2000 dollars for a 25 user client. You need annual renewal for additional features like antivirus."
"Its licensing is yearly. You renew every year. Its price is all-inclusive."
"There is a yearly upkeep fee."
"It is priced low enough for entry-level, but it has the power to grow with a company without them having to replace it."
"Pricing is good, but the licensing took a lot of time."
"My advice is to use your own hardware, and do not use theirs."
"I think it is a bit on the pricey side, but it's okay. I've got 50 licenses which I think is $250 a year or something like that."
"The software has become more expensive at present."
"Zscaler has so far been solely responsible for all the sales we have done with it, so it would be more suited than us to address any issues concerning the pricing."
"The product is not affordable for small and medium enterprises."
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Top Industries

By visitors reading reviews
Computer Software Company
21%
Comms Service Provider
9%
Financial Services Firm
9%
Media Company
7%
Financial Services Firm
13%
Manufacturing Company
13%
Computer Software Company
10%
Healthcare Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about KerioControl?
The solution provides feasibility regarding cyber privacy.
What is your experience regarding pricing and costs for KerioControl?
KerioControl offers good pricing as one license covers all features needed without extra payment. The price for the product is rated as ten out of ten.
What needs improvement with KerioControl?
The logs could be improved for better clarity. It is difficult to understand when there is a threat attack, and handling firmware requires experience.
What do you like most about Zscaler Cloud IPS?
The product's most valuable feature is complete SSL inspection.
What is your experience regarding pricing and costs for Zscaler Cloud IPS?
The product is not affordable for small and medium enterprises.
What needs improvement with Zscaler Cloud IPS?
They have given limited free access for a year. Instead, they should increase the file size and give limited free access for around two months. It will allow engineers to evaluate the product.
 

Overview

 

Sample Customers

Triton Technical, McDonald's
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about KerioControl vs. Zscaler Cloud IPS and other solutions. Updated: June 2025.
860,168 professionals have used our research since 2012.