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Fortinet FortiGate vs Zscaler Cloud IPS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

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

Fortinet FortiGate
Ranking in Intrusion Detection and Prevention Software (IDPS)
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
592
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Firewalls (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (1st), Unified Threat Management (UTM) (1st)
Zscaler Cloud IPS
Ranking in Intrusion Detection and Prevention Software (IDPS)
19th
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 June 2026, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of Fortinet FortiGate is 9.6%, down from 18.4% compared to the previous year. The mindshare of Zscaler Cloud IPS is 1.9%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Intrusion Detection and Prevention Software (IDPS) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiGate9.6%
Zscaler Cloud IPS1.9%
Other88.5%
Intrusion Detection and Prevention Software (IDPS)
 

Featured Reviews

JK
IP Network Security Specialist at MTN Ghana
Process-Level CPU Visibility: Introduce detailed CPU-usage metrics per subsystem (e.g., IPS engine, logging) so administrators can quickly identify and address performance spikes.
Analytics with FortiAnalyzer. Being able to pull in logs not just from our FortiGates but from all our other firewalls and then get them in one view has been a game changer. Whether I’m building an executive dashboard or doing a deep dive forensics session, I get everything I need without navigating consoles.Straightforward Application Control. FortiGate spots and blocks unwanted apps (eq. like BitTorrent or streaming services) with accuracy. Segmentation with VDOMs. We’ve carved our data center into four logical ‘mini-firewalls’ enterprise, core, billing, and WAF—all on one box. Each has its own rules and logs, and any traffic between them still gets inspected. It’s like having multiple appliances without the extra hardware. Always-Up-to-Date Threat Feeds. Daily signature updates and AI-driven threat sensing mean we’re blocking the latest vulnerabilities almost as soon as they’re announced.
Utpal Sinha - PeerSpot reviewer
Sr Network Engineer at Momentive
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

"The threat prevention is the solution's most valuable aspect."
"I found the upgrades valuable."
"It performs very well."
"These features have proven effective in protecting our network, handling large volumes of traffic smoothly without any issues."
"It has a good UI and overall integration, including FortiGate Manager for controlling all firewalls from a single place."
"We found FortiGate better, and we switched everything, decommissioned all SonicWall firewalls, and now benefit from clear licensing where we know the price without complex user-based or function-based subscriptions."
"The most valuable features are the enterprise modeling and the simple interface."
"Because of the flexibility, the advanced user features, the high level of security controls, and the tweaks that are available for the user, I would rate this solution an eight out of ten."
"The initial setup is straightforward and easy in comparison with other solutions."
"Cloud IPS integration is seamless, and it uses a Zero Trust model, and it also simplifies overall user access management."
"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."
 

Cons

"They need to improve their technical support."
"Integrating OpenVPN with FortiGate would provide a powerful combination of secure remote access and comprehensive network security."
"The tech support is not excellent; this is where Fortinet saves money compared to others... But plenty of free, clear and public documentation is available and this compensates for the most part the tech support shortcomings."
"I would like to see improvements in the IPS/IDS feature to enhance protection against attacks from attackers, including ransomware protection."
"I often ask for help from the local provider. I haven't found the required efficient help."
"The product's data guard feature should support a USB port when the internet connection is unavailable."
"The performance can be improved."
"I encountered several strange issues in v5.0 (and earlier) OS versions. Strange anomalies like random reloads, VPN instability and unexplained policy changes."
"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."
"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

"It is cheaper and more competitive compared to other options. For example, when comparing Palo Alto products to others, Palo Alto tends to be more expensive. If you compare Cisco's platform, including Cisco Meraki, with Fortinet products, you'll notice that Cisco's offerings are generally higher priced than Fortinet's firewall solutions."
"It is less expensive than a Cisco solution."
"The product is a little bit expensive."
"I had to pay for the license for the firewall, but it is guaranteed to have updates. I expect a good service for it. It was about €1000 for a year, and there was no additional cost."
"It is not the cheapest one, but its price is very competitive."
"The product is not very expensive."
"Fortinet FortiGate as a less expensive solution than Palo Alto."
"It is expensive. You need to pay for the subscription every year, which is very expensive. The subscription includes technical support and hardware exchange in case of failure."
"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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Comparison Review

it_user216600 - PeerSpot reviewer
Senior Technical Consultant with 51-200 employees
Jan 3, 2016
Sophos UTM vs. Fortinet FortiGate
I have used both Sophos and Fortinet products in production and I have found the Sophos UTM appliances (hardware and virtual) to be a better fit most of the time -- with a few caveats which I will touch on below. In both instances, the transition from TMG will be mostly straightforward. The main…
 

Top Industries

By visitors reading reviews
Comms Service Provider
10%
Computer Software Company
9%
Manufacturing Company
9%
Financial Services Firm
7%
Healthcare Company
11%
Construction Company
10%
Manufacturing Company
10%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business369
Midsize Enterprise139
Large Enterprise195
No data available
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
When you compare these firewalls you can identify them with different features, advantages, practices and usage at large. In my opinion, Fortinet would be the best option and l use Fortinet too...
What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know the firewalls change every 5 to 7 years as stated but you really do need to upg...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite good. The most valuable features for me are their web and email filtering. I wou...
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Also Known As

Fortinet FortiGate Next-Generation Firewall
No data available
 

Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Fortinet FortiGate vs. Zscaler Cloud IPS and other solutions. Updated: June 2026.
902,270 professionals have used our research since 2012.