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CASB vs Zscaler Private Access (ZPA) comparison

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Comparison Buyer's Guide

Executive Summary

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

iboss
Sponsored
Ranking in Cloud Access Security Brokers (CASB)
7th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
22
Ranking in other categories
Secure Web Gateways (SWG) (6th), Internet Security (3rd), Web Content Filtering (1st), ZTNA as a Service (8th), Secure Access Service Edge (SASE) (8th)
CASB
Ranking in Cloud Access Security Brokers (CASB)
20th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
Zscaler Private Access (ZPA)
Ranking in Cloud Access Security Brokers (CASB)
9th
Average Rating
9.0
Reviews Sentiment
6.9
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 4.0%, up from 1.8% compared to the previous year. The mindshare of CASB is 1.1%, up from 0.7% compared to the previous year. The mindshare of Zscaler Private Access (ZPA) is 2.2%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Access Security Brokers (CASB) Mindshare Distribution
ProductMindshare (%)
iboss4.0%
Zscaler Private Access (ZPA)2.2%
CASB1.1%
Other92.7%
Cloud Access Security Brokers (CASB)
 

Featured Reviews

Ashok Ananthula - PeerSpot reviewer
Senior Consultant Proxy Engineering at a financial services firm with 10,001+ employees
Cloud gateway has strengthened remote web security and now needs better Mac and ISP support
The problem our organization had is that iboss failed for the Mac devices. It is not able to give a successful agent for the Mac agents. That is where in 2025, we had to migrate to the Palo Alto-based platform. If your use case is for just Windows laptops,you can consider this platform as an option One issue is the data center resiliency part. In India especially, they are not tied up with the Tier 1 ISPs like Tata or Airtel; they were having Tier 2 ISPs and encountered many issues reaching few major sites that my organization depends on, and they were having problems that they could not fix quickly. They also lack a mechanism to route that traffic within their data center; rather, they ask customers to make a pac file change to route it to Singapore explicitly. It would be better if they route from their backend , i mean even if I send it to India DC, they should be able to route it internally to make that work; however, they fail to do that and ask the customer to route it in the pac file. Another suggestion is that in China, they do not have the proper setup; they used to have numerous problems with slowness and lack of premium circuits in China as well. That leads to multiple sites working slowly with latency-related issues. So the main issue is the ISP-related problems that need to be solved.
BasilJiji - PeerSpot reviewer
System Engineer at a retailer with 10,001+ employees
Zero trust access has secured hybrid work and now provides seamless app connectivity
Zscaler Private Access (ZPA) has significantly reduced our attack surface by making our internal apps invisible to the internet. It effectively eliminates lateral movement as users are only connected to the specific application they are authorized to use rather than the entire network segment. Zscaler Private Access (ZPA) is highly stable. The architecture uses a global mesh of service edges with built-in fault tolerance and redundancy, providing an always-on experience that is far more reliable than our old hardware-based VPN concentrator. Zscaler Private Access (ZPA) is elastically scalable because it is a software-defined perimeter and not an appliance-based solution. I can instantly scale to support thousands of additional users without needing to upgrade any physical hardware.
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
9%
Computer Software Company
9%
Construction Company
7%
Financial Services Firm
18%
Outsourcing Company
9%
Healthcare Company
9%
Construction Company
7%
Financial Services Firm
15%
Insurance Company
11%
Outsourcing Company
9%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise7
Large Enterprise8
No data available
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise4
Large Enterprise7
 

Questions from the Community

What needs improvement with iboss?
The problem our organization had is that iboss failed for the Mac devices. It is not able to give a successful agent ...
What is your primary use case for iboss?
We used iBoss mainly for Internet Access by having an Agent on Windows laptops Primarily because when we try to use i...
What is your experience regarding pricing and costs for iboss?
I am not involved in pricing, but as per the information I have, during that time, the Blue Coat proxies we were usin...
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What is your experience regarding pricing and costs for Zscaler Private Access (ZPA)?
Regarding pricing, setup costs, and licensing for Zscaler Private Access (ZPA), while it is not the cheapest solution...
What needs improvement with Zscaler Private Access (ZPA)?
After deploying Zscaler Private Access (ZPA), I notice a reduction in VPN-related support tickets, particularly durin...
What is your primary use case for Zscaler Private Access (ZPA)?
My primary use case for Zscaler Private Access (ZPA) is securing application-level access to internal applications wi...
 

Also Known As

iBoss Cloud Platform
No data available
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Overview

 

Sample Customers

More than 4,000 global enterprises trust the iboss Cloud Platform to support their modern workforces, including a large number of Fortune 50 companies.
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Find out what your peers are saying about Palo Alto Networks, Cisco, Netskope and others in Cloud Access Security Brokers (CASB). Updated: May 2026.
893,311 professionals have used our research since 2012.