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KerioControl vs Zscaler Cloud IPS comparison

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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)
13th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
58
Ranking in other categories
Firewalls (27th), Unified Threat Management (UTM) (8th)
Zscaler Cloud IPS
Ranking in Intrusion Detection and Prevention Software (IDPS)
21st
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 October 2026, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of KerioControl is 3.1%, up from 2.9% compared to the previous year. The mindshare of Zscaler Cloud IPS is 2.2%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Intrusion Detection and Prevention Software (IDPS) Mindshare Distribution
ProductMindshare (%)
KerioControl3.1%
Zscaler Cloud IPS2.2%
Other94.7%
Intrusion Detection and Prevention Software (IDPS)
 

Featured Reviews

Constantnos Achilleos - PeerSpot reviewer
Product manger at Asbis Mediteranean
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…
Utpal Sinha - PeerSpot reviewer
Sr Manager at HCL Tech
Stable product with valuable SSL inspection features
We use Zscaler Cloud IPS for threat protection, full SSL inspection, and data center scalability. It integrates with multiple products, including cloud firewalls, cloud sandboxing, Cloud Security Broker (CSB), and Data Loss Prevention (DLP). It helps us allow or block specific TCP or UDP ports…

Quotes from Members

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

Pros

"Out-of-the-box, the overall comprehensiveness of the security features is pretty good; it's not just a firewall, it's kind of a firewall proxy, reverse proxy, everything out-of-the-box sort of solution, and it's pretty comprehensive."
"The product is easy to use."
"The interface control manager where we can allocate LAN connections to certain VLANs is the most valuable feature."
"At the end of the day, our customers are being managed, looked after, and they're secure, so they're happy."
"One very good thing about the Kerio device is its authentication. I don't have a Windows domain for authentication. Instead, I use the Kerio product because it can separate users by Mac addresses and give them IP addresses based on their usernames, automatically logging them in. This makes for a very simple authentication system."
"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, and additionally, the anti-virus is effective with quick options, such as filtering."
"The most valuable features include geo-tagging, which blocks all other IPs except for the specified accounts, and web filtering."
"It just works, it does what it is meant to do."
"Cloud IPS integration is seamless, and it uses a Zero Trust model, and it also simplifies overall user access management."
"The initial setup is straightforward and easy in comparison with other solutions."
"The product's most valuable feature is complete SSL inspection."
"The initial setup process is easy."
"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

"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."
"There isn't a lot to be improved. It works well as it is, but they can maybe improve the reporting side."
"I would like to be able to inspect https packets for the purpose of virus scanning."
"We'd like to have more integrations Kerio Operator."
"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."
"There's also room for improvement in the Traffic Rules. We define networks to use a specific outgoing interface, say VSAT, shore, or marine WiFi, which is okay. But then all we have is a checkbox that says "Use other internet interfaces if this one is unavailable." What we would prefer would be to have a priority list. So if VSAT is unavailable, try to use 4G, etc. We haven't really found a reliable way of doing that in the current release."
"One of the problems we do have causes problems with the VPN. The software slows the throughput down too much."
"If I would suggest anything, it would be to expand on its multifactor authentication to be a little bit more user-friendly. They should do multifactor authentications for the client itself perhaps, rather than served on a webpage, in a page hijack, that might be more user-friendly, but I don't have a lot of complaints about it. It's doing its job. You have to have a certain amount of skills to configure these things anyway, the ones that we use on-site doing point-to-point, and we've been tricked up a few times with their interfaces."
"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."
"When it comes to scalability, the IPsec could be improved."
"We encounter issues sharing IP addresses with other companies using the software."
"There is always room for improvement."
"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."
 

Pricing and Cost Advice

"KerioControl's pricing is good."
"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."
"We have to pay approximately EUR 175 for the product."
"Pricing is good, but the licensing took a lot of time."
"The price of Kerio Control could be better, it is a bit overpriced compared to other solutions."
"I pay approximately $50 for the solution on an annual basis."
"It's very affordable."
"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."
"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."
"The product is not affordable for small and medium enterprises."
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Top Industries

By visitors reading reviews
Construction Company
11%
Comms Service Provider
11%
Manufacturing Company
10%
Computer Software Company
10%
Healthcare Company
13%
Construction Company
10%
Comms Service Provider
10%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise9
Large Enterprise3
No data available
 

Questions from the Community

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?
Regarding KerioControl's application awareness and control feature, I have not used it much.
What is your primary use case for KerioControl?
With KerioControl, we usually use them for site-to-site VPNs for most of our clients. With multiple offices, we use KerioControl as our solution.
Ask a question
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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: September 2026.
918,970 professionals have used our research since 2012.