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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 April 2025, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of KerioControl is 1.6%, up from 1.2% compared to the previous year. The mindshare of Zscaler Cloud IPS is 1.4%, 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…
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

"The product is affordable."
"I have found the most valuable features of Kerio Control to be the IPS and firewall."
"The most valuable features of KerioControl are ease of configuration, user-friendliness, and comfortable to use. It is an all-in-one solution, it comes with many features, such as a firewall, antivirus software, and network protection."
"I am impressed with the tool's firewall filtering capacity."
"The product is easy to use."
"The most valuable feature is to provide users with the ability to log in to the portal page, keep track of their data usage and perform bandwidth management."
"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."
"The firewall and the content filtering options are valuable."
"The initial setup is straightforward and easy in comparison with other solutions."
"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."
"The initial setup process is easy."
"The product's most valuable feature is complete SSL inspection."
 

Cons

"My experience with the solutions technical support is fine but they could be faster in responding."
"Their support is getting better but still needs improvement."
"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."
"I would like to be able to inspect https packets for the purpose of virus scanning."
"The solution should offer more dashboards."
"One area that confused me a bit when I was building my current network. I use VLANs to have separate functionality on the network, and the appliance I got was the WiFi model, but I discovered that you can't assign WiFi channels to the VLAN. So, you can have WiFi, but its own subnet. You can't run that over the VLAN. Effectively, I can't use the WiFi facility in the appliance and had to purchase a separate web that supports VLANs. In the end, I had to go to GFI support. They confirmed this is just a limited functionality of that device, as it is a low-end device. I don't know if any of their high-end models have a better facility or not."
"I would like to see geo-IP filtering added to the filtering rules. Incorporating these rules would be very beneficial if you have different ideas or reasons to filter, such as communication to the email server or specific websites."
"The improvement that we are looking for is for when decide to move some part of our application to the cloud."
"When it comes to scalability, the IPsec could be improved."
"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."
"We encounter issues sharing IP addresses with other companies using the software."
"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

"On the low-end device that I use, it has unlimited IP addresses. So, they have a subscription model where, on the higher models, you pay X dollars for 10 IP addresses. Then, if you want any more, you have to pay more on the model. On the low-end model, it has unlimited IP addresses, because if you have too many users, the thing will just slow you down and stop working. At some point, you need to say, "Okay, I've grown to a point where performance is impacted. I need to get some bigger hardware." If I get to that stage, I will possibly look at using one of the virtual appliances and putting it on some bigger hardware."
"Licensing is easier with Kerio Control. With FortiGate, we realized the licensing is really hectic, because if you skip one year, you have to back pay that year. If you skip two years, you have to back pay two years. With Kerio Control, if a license expires, one year later you can just reactivate and go on."
"My advice is to use your own hardware, and do not use theirs."
"I am living in Iran and we cannot buy the product from Kerio because of sanctions."
"Its price is fair. There are no additional costs."
"Our clients see ROI with Kerio Control, as they are saving bandwidth costs."
"The price of Kerio Control could be better, it is a bit overpriced compared to other solutions."
"The yearly maintenance fee is a bit high for the Kerio Control Boxes. The end of life for the devices is kind of short. It seems like they're making you upgrade within a short period of time. They should at least allow five years, but it seems like they are changing their end of life to be shorter to generate revenue."
"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
22%
Comms Service Provider
9%
Financial Services Firm
9%
Media Company
8%
Financial Services Firm
13%
Computer Software Company
12%
Manufacturing Company
12%
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.
847,959 professionals have used our research since 2012.