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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)
15th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
57
Ranking in other categories
Firewalls (29th), 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 May 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 1.4%, up from 1.1% 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…
Atdhe Zyhranaj - PeerSpot reviewer
It allows for a separation between cloud applications and URL filtering
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.

Quotes from Members

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

Pros

"It has helped our organization with testing."
"​It helps us better control internal and external communications.​"
"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 most valuable features of Kerio Control are the IPS and traffic rules. The traffic rules are very user-friendly and the IPS is working well. Additionally, the anti-virus is effective with quick options, such as filtering."
"Compared to other solutions, accounting and live monitoring of firewall status are very good features in KerioControl."
"Technical support is good. They respond right away."
"I love the VPN that we set up. A few of us have it on our computers so that if we leave, we can still access the stores. And we can work from home if needed. When I sign into that Kerio VPN, it links me like I'm sitting in the store. It puts me in our secure network so that I can sign on to each individual store and I can run numbers... If I have to work from home, it's so much faster than the way we used to do it."
"The solution provides feasibility regarding cyber privacy."
"The initial setup process is easy."
"The initial setup is straightforward and easy in comparison with other solutions."
"The product's most valuable feature is complete SSL inspection."
"Cloud IPS integration is seamless, and it uses a Zero Trust model. It also simplifies overall user access management."
"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."
 

Cons

"If you have to dive deeper into the firewall or any other features, then you really have to read up a bit about how to set it up properly. Some of my colleagues, in the beginning, jumped in and made a bunch of rules but then it got really messy. If Kerio had a template or guidelines for best practices, at the beginning, that would really help. With Kerio Control it's basically 'find out for yourself.'"
"Kerio Control could improve by having higher availability and adding a mobile VPN channel. These additions are needed. The VPN is working fine on the Kerio Control but there needs to be a VPN client on the mobile phones, both for iOS and Android. This would be very good for us."
"Improvements are needed to the Next Generation Firewall Protection, specifically with user-level protection."
"The solution can be improved to create the capability for larger bandwidths that support our business needs."
"They should add wireless features."
"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."
"Their support is getting better but still needs improvement."
"Kerio Control could improve content filtering."
"We encounter issues sharing IP addresses with other companies using the software."
"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."
"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."
"There is always room for improvement."
 

Pricing and Cost Advice

"Its licensing is yearly. You renew every year. Its price is all-inclusive."
"It's very affordable."
"Its price is fair. There are no additional costs."
"KerioControl's pricing is reasonable. The license for KerioControl is annual. It's difficult to specify an exact cost since it varies depending on the number of users and additional software combined with it. For example, a basic box might cover 25 users, but licenses can be purchased starting from 10 users."
"The price is fine."
"It gets expensive pretty quickly if you need to purchase license packs."
"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."
"It is priced low enough for entry-level, but it has the power to grow with a company without them having to replace it."
"The product is not affordable for small and medium enterprises."
"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 software has become more expensive at present."
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Top Industries

By visitors reading reviews
Computer Software Company
24%
Comms Service Provider
9%
Financial Services Firm
9%
Media Company
8%
Financial Services Firm
13%
Manufacturing Company
12%
Computer Software Company
11%
Healthcare Company
7%
 

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: April 2025.
850,028 professionals have used our research since 2012.