Cisco Duo vs Zscaler Zero Trust Exchange Platform comparison

Cisco and Zscaler are both solutions in the ZTNA as a Service category. Cisco is ranked #7 with an average rating of 8.5, while Zscaler is ranked #1 with an average rating of 8.6. Cisco holds a 2.1% mindshare in ZaaS, compared to Zscaler’s 17.4% mindshare. Additionally, 95% of Cisco users are willing to recommend the solution, compared to 98% of Zscaler users who would recommend it.

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Executive SummaryUpdated on Jul 27, 2025

Cisco Duo and Zscaler Zero Trust Exchange Platform are major contenders in the security solutions sector. Cisco Duo seems to have an advantage with its highly valued ease of deployment and responsive customer service.

Features: Cisco Duo offers multi-factor authentication without the need for a smartphone, simplifying access for users who can't or won't use one. It also provides a user-friendly interface with scalability and push notifications. Meanwhile, Zscaler stands out with seamless VPN connectivity, robust cloud security, and CASB functionalities, which enhance internet and private access security.

Room for Improvement: Cisco Duo could improve its integration with third-party applications, refine its user interface, and enhance compatibility with on-premise solutions, as well as addressing concerns regarding telephony credits and password-free logins. Users of Zscaler suggest enhancement in performance in various geographies, more intuitive interfaces, and better support for legacy systems, alongside a need for improved granular control in data protection features.

Ease of Deployment and Customer Service: Cisco Duo is praised for its straightforward deployment across public, hybrid, and on-premises environments. Its customer service is known for being supportive and prompt, backed by Cisco's reputation. Zscaler also offers flexible deployment options but faces criticism for slower customer service response times, influencing user satisfaction negatively.

Pricing and ROI: Cisco Duo is considered reasonably priced with good value, though some suggest more flexibility in its pricing model. It offers a visible ROI through enhanced security and user satisfaction. In contrast, Zscaler is noted to be more expensive, especially for its advanced features, yet it provides value through comprehensive security enhancements and tool integrations. Users report ROI through reduced vulnerabilities, although it comes with a higher upfront cost.

To learn more, read our detailed Cisco Duo vs. Zscaler Zero Trust Exchange Platform Report (Updated: July 2025).

Buyer's Guide

Cisco Duo vs. Zscaler Zero Trust Exchange Platform

July 2025

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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

Mindshare comparison

As of September 2025, in the ZTNA as a Service category, the mindshare of iboss is 2.3%, up from 1.2% compared to the previous year. The mindshare of Cisco Duo is 2.1%, down from 2.7% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 17.4%, down from 21.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

ZTNA as a Service Market Share Distribution
Product	Market Share (%)
Zscaler Zero Trust Exchange Platform	17.4%
Cisco Duo	2.1%
iboss	2.3%
Other	78.2%

ZTNA as a Service

Featured Reviews

Matt Crockford

Head of Cybersecurity at SES Water

It's easy to roll out, and their understanding of our business made it seamless

One aspect we value about iboss is its simplicity. Their customer service is brilliant, and they are super responsive and knowledgeable. It's easy to roll out, and their understanding of our business made it seamless. We were impressed by the solution's mental health function, which can detect if someone needs help. It scans what users are browsing and flags warning signs so we can check to see if they are okay. We've had to use it a couple of times. The user interface is highly intuitive. Our IT team picked it up with minimal training. It's arranged so that it's easy to find where things are. Another advantage is the single pane of glass console, which gives you visibility into what's happening. We're not fully there yet because we haven't implemented zero trust, but we're excited about the possibilities from the demos we've seen. We launched a POC of iboss' ChatGPT Risk Protection feature two weeks ago. AI is a great tool, but you need to be careful what you put into it. My biggest fear is employees inputting sensitive corporate information or customer PII data into one of these chatbots. I was impressed by our trial of the feature. It's exactly what we wanted. Now, when a user goes to ChatGPT, there's a banner warning them not to share information, and we can block conversations containing customer data like bank details and email addresses. I don't want to stop people from using it, but we need visibility. We've only tried it on a test group of 15 people. You can configure it to look for specific keywords or integrate it with your DLP policy if you have that configured

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Thomas Botts

Senior Network Engineer at a educational organization with 1-10 employees

Managing security policies effectively with seamless authentication

The feature of Cisco Duo that I prefer the most is the policies, being able to control what we need to within the policies. You can get pretty granular. There isn't a lot of training that goes on in school districts. Email is an easy way where many people give out their credentials, so the level of protection is something that we definitely need in a school district. Cisco Duo's strong security authentication system has been easy when logging in, although the teachers don't appreciate it as much. We have it configured so users essentially just hit accept. If it sees any sort of built-in risk, then it steps up authentication. It's pretty easy. I appreciate it. I've encountered advantages with Cisco Duo in that it has stopped significant pushback from teachers. It has prevented credential sharing and unauthorized access. We've seen a huge decrease since we've rolled it out across the entire district.

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Sumit Bhanwala

architect at Tata Consultancy

Cloud-based platform simplifies device and data center management

I find it to be good. The solution is cloud-based with the latest inspection engines, which I find to be amazing. We are less dependent on data centers and device management, which reduces our efforts significantly. It improves our device management, data center management, and updating devices. We need fewer engineers for this management, and it reduces time and efforts for data center management, device upgrades, and IT support.

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Quotes from Members

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

Pros

"Content filtering is the most useful feature of iboss."

"The security aspect of the solution, particularly the malware behind it, is excellent. That's something that really helped us out. It's not just a simple proxy that just blocks the insights of potential threats that come on behind it. They do malware detection and that helps us a lot."

"iboss is among the few products providing inline filtering where no application is needed on the device. It operates on the network side and is not device-based. This feature was one of the main reasons why we stayed with them for so long."

"It was a very easy product to install. It can be deployed very fast."

"iboss has significantly lowered the number of security incidents. It is crazy how much it blocks and how much it is aware of the outside danger."

"The iboss system is highly reliable. The false positive rates are small compared to some other systems we've experienced through other partner agencies who use competing solutions."

"We were impressed by the solution's mental health function, which can detect if someone needs help. It scans what users are browsing and flags warning signs so we can check to see if they are okay. We've had to use it a couple of times."

"iboss is easy to use despite its complexity. Multiple engineers manage it, but it's significantly more straightforward to administer than traditional VPNs and web proxies."

More iboss pros

"It has definitely reduced embedding. We found a lot of problems with attackers being able to compromise accounts. Now, when they try to access accounts, they are not able to do so because there is an added layer of protection. Once we know that a username and password are compromised, we just reset the password to protect the company."

"The UI of Cisco Duo is easy to use, especially the web backend, and it's really intuitive and easy to set up."

"The integration with Azure Active Directory and the AWS cloud is amazing, as most products nowadays require the creation of a customized integration. With Duo Security, it was more like native integration, and it took me five minutes to register."

"The two-factor login is great. I receive a message and just have to press okay."

"Cisco Duo scales with the growing needs of our organization by making it easy to acquire more licensing, especially with an enterprise agreement, which allows built-in growth and minimizes worries about licensing as we expand."

"Compared to Cisco, the general support I experience is fantastic; I have no complaints about it."

"It is really scalable. It is easy once you get an application in. You can import users from Active Directory and enroll users really fast."

"We're working remotely. It helps us keep people more safe. Its adoption has been fine. I like the fact that you can bypass it if you need to because there are situations where the internet doesn't work, etc."

More Cisco Duo pros

"SASE's most valuable features are proxy and content filtering."

"It has been helpful in maintaining our infrastructure. The granular level control it offers allows us to set application policies per application for each user."

"The UI is easy to use."

"Its impressive scalability allows the combination of multiple dictionaries and using them as one engine, resulting in narrower data loss gaps."

"It's one of the easier products on the market as far as set-ups and deployments. Even across their whole product suite, they've made it pretty simple."

"The most valuable feature of Zscaler Private Access is the categorization of the dynamic URLs which keeps the customer's environment protected. The threats and the malware are correctly categorized."

"The product’s most valuable features are inbound and outbound scanning and API control."

"The Live Logs are a cool feature. We can directly identify issues and divert user traffic."

More Zscaler Zero Trust Exchange Platform pros

Cons

"Iboss is growing so fast that it is often hard for them to keep up with the challenges."

"Sometimes the agent stops working in iboss, and we have to reinstall the agent."

"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."

"The solution could be stronger on the integration side and offer more cloud applications like G Suite or Oracle."

"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."

"I'd like to see them accelerate development on the security side, particularly around data loss prevention."

"Their on-premise hardware's network interface is capped at one gigabit, which is sort of a problem. If you stand a filter up where all traffic flows through that, according to them, in order to go above a gigabit, you have to have multiple devices, which in today's IT seems a little bit silly. They could easily put in an SFP port into their device that could accommodate 10 gigs or at least offer a box."

"SSL decryption: We had issues with learners using apps instead of using web browsers. This type of encryption is tough for any appliance in a BYOD environment."

More iboss cons

"Sometimes, it's a little harder for customers to adopt."

"My experience with Cisco Duo's strong security authentication system is that sometimes there are difficulties, and sometimes users just won't be able to log in. We have to reset their password so they can use Duo."

"The pain point for us at one point was the Duo Authentication Proxy since we're on-premises and not in the cloud. We had to have a proxy machine that's in our DMZ to talk to Duo for us. The configuration of that was a little complicated."

"Cisco Duo can be improved with better ways to set users up. Currently, we might not be doing it perfectly as we're having them email in phone numbers to get them set up with Duo Mobile. I wish there was more of a self-service option than there is currently, at least to my understanding of Duo."

"It is easy to use when logging in, but at times, there's a delay in getting the pop-up on a phone, requiring users to occasionally retry authentication depending on backend services."

"The dashboard needs to be improved."

"Reducing or eliminating the "telephony credits" system used by Duo would be great."

"I wish that the support would be a little bit more prompt and a little bit more flexible because there are certain things that they will do and certain things they won't do."

More Cisco Duo cons

"The solution's granularity should be improved because it has limited granular options to control, visible, allow, block, delay, and receive."

"The stability could be improved."

"There could be additional ways to define proximity. Additionally, they should provide some exclusion options for specific policies and an ability to control the DLP engine."

"There could be a feature to view the VPN tunnel activities in terms of configuration."

"We have issues with the tool's maintenance and networking. It should be able to work in offline mode as well."

"The customers would benefit from more robust documentation and conversations around configurations, as it is slightly complex."

"Zscaler CASB should include integrations with other SaaS applications."

"There are some performance issues with the solution once the module addition begins"

More Zscaler Zero Trust Exchange Platform cons

Pricing and Cost Advice

"It is expensive compared to one of its competitors."

"It is not expensive, and it is also not cheap. iboss is priced right in the sweet spot for the number of features it offers."

"It is probably in line with other solutions, but I do not deal with the financial side."

"We have not priced the solution recently, but they were competitive with other vendors in the past."

"We had the cost of purchasing a new appliance along with the implementation and licensing costs. However, the following year, the cost of just licensing was similar to what was paid the previous year for a new appliance along with the implementation and licensing costs."

"The overall pricing for iboss is very competitive and transparent."

"Cisco's licensing is always a bit complicated to understand, but the price is fair. It could be more expensive than others, but the way they integrate everything, it has a fair price."

"Price wise, it's not cheap, but it's not expensive at all either. It's in the middle."

"From a reseller perspective, it's still challenging to explain the whole license strategy to a client, so we really have to be ahead of that for all the true forward conversations."

"The pricing is pretty competitive. It's pretty cheap. Anybody can adopt it."

"Duo Security is free."

"I am not aware of the pricing. There are two departments, and I don't have any information about them."

"Duo Security's pricing is good, fair, and very comparable to today's market."

"The cost was reasonable. Licensing was pretty straightforward for a change."

More Cisco Duo pricing and cost advice

"In terms of market positioning, I would describe Zscaler Private Access as offering optimal pricing. Based on our experience, Cato Networks tends to be slightly more expensive."

"Zscaler CASB is an expensive solution."

"Zscaler Private Access can be an expensive solution, depending on the license type you will purchase."

"Zscaler Cloud DLP is moderately priced. We pay around 2 million rupees per year."

"The price is competitive."

"The product is a bit expensive."

"The solution has increased prices this year."

"It's an affordable solution"

More Zscaler Zero Trust Exchange Platform pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

11%

Financial Services Firm

11%

Manufacturing Company

Government

Computer Software Company

18%

Manufacturing Company

Government

Financial Services Firm

Computer Software Company

14%

Financial Services Firm

12%

Manufacturing Company

10%

Insurance Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	6
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	27
Midsize Enterprise	16
Large Enterprise	36

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	11
Large Enterprise	41

Questions from the Community

What needs improvement with iboss?

For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company Exxon...

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What is your primary use case for iboss?

Previously when I used iboss, we did the POC for iboss for ExxonMobil. Four or five people wanted to move from our ol...

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What is your experience regarding pricing and costs for iboss?

Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern. There are cheaper alte...

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How does Duo Security compare with Microsoft Authenticator?

We switched to Duo Security for identity verification. We’d been using a competitor but got the chance to evaluate Du...

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What do you like most about Duo Security?

They are users who, as mentioned before, utilize RDPAP and MDPAP. It includes functionalities related to finance, spe...

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What is your experience regarding pricing and costs for Duo Security?

My experience with the pricing, setup cost, and licensing of Cisco Duo is honestly above my pay grade. I don't know a...

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What is the better solution - Prisma Access or Zscaler Private Access?

We looked into Prisma Access before choosing Zscaler Private Access (ZPA). Palo Alto’s Prisma Access is a secure ac...

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What do you like most about Zscaler SASE?

The most valuable features of Zscaler Private Access are reliability, scalability, and availability.

See all answers

What needs improvement with Zscaler SASE?

The solution needs to improve a lot of aspects.

See all answers

Comparisons

Zscaler Internet Access vs iboss

Compared 15% of the time

Cisco Umbrella vs iboss

Compared 14% of the time

Prisma Access by Palo Alto Networks vs iboss

Compared 14% of the time

Netskope vs iboss

Compared 13% of the time

Lightspeed Filter vs iboss

Compared 4% of the time

More iboss Competitors

Fortinet FortiAuthenticator vs Cisco Duo

Compared 13% of the time

Microsoft Entra ID vs Cisco Duo

Compared 13% of the time

Fortinet FortiToken vs Cisco Duo

Compared 10% of the time

Yubico YubiKey vs Cisco Duo

Compared 7% of the time

AuthLite vs Cisco Duo

Compared 2% of the time

More Cisco Duo Competitors

Cato SASE Cloud Platform vs Zscaler Zero Trust Exchange Platform

Compared 11% of the time

Microsoft Purview Data Loss Prevention vs Zscaler Zero Trust Exchange Platform

Compared 8% of the time

Prisma Access by Palo Alto Networks vs Zscaler Zero Trust Exchange Platform

Compared 7% of the time

FortiSASE vs Zscaler Zero Trust Exchange Platform

Compared 6% of the time

Netskope Private Access vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

More Zscaler Zero Trust Exchange Platform Competitors

Product Reports

Buyer's Guide

iboss

September 2025

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Buyer's Guide

Cisco Duo

September 2025

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Buyer's Guide

Zscaler Zero Trust Exchange Platform

August 2025

Zscaler Zero Trust Exchange Platform report

Download Zscaler Zero Trust Exchange Platform product report

Also Known As

iBoss Cloud Platform

Duo Security

Zscaler SASE, Zscaler DLP, Zscaler CASB, Zscaler CSPM, Zscaler Browser Isolation, Zscaler Posture Control

Overview

iboss offers a comprehensive security platform designed for diverse use cases such as web filtering, data loss protection, corporate proxy services, and URL filtering.

iboss integrates advanced features to address dynamic security needs, leveraging its strength in SASE, ZTNA, AI initiatives, and cloud integration, while ensuring seamless operations for remote work. It excels in historical forensics, malware protection, and flexible cloud deployments. Users benefit from comprehensive traffic scanning, robust malware detection, and PaaS capabilities that reduce hardware management. An intuitive admin console ensures efficient management with content filtering and low false positives. SSL decryption enhances security, while DLP protects data in AI conversations. Deployment is rapid and scalable, allowing effortless integration with emerging technologies.

What features does iboss offer?

Granular Web Filtering: Provides precise control over web content access.
Traffic Scanning: Monitors data through multiple ports for security breaches.
Malware Detection: Ensures superior protection against malware threats.
PaaS Capabilities: Eliminates need for hardware management.
SSL Decryption: Enhances data protection by decrypting secure connections.
DLP Capabilities: Safeguards data during AI interactions.

What benefits and ROI should users consider?

Scalability: Adapts quickly to growing demands and emerging tech integration.
Rapid Deployment: Reduces time to implement security measures.
User-Friendly Admin Console: Facilitates efficient operations management.
Low False Positives: Increases accuracy of threat detection systems.

iboss finds significant application in sectors such as education, where web filtering for K-12 is crucial, and in corporate environments requiring robust proxy services and URL filtering for network security. Its adaptability is essential in scenarios demanding flexible, decentralized security frameworks, particularly for remote work setups.

iboss

Cisco Duo is a cloud-based identity security tool offering easy and wide-ranging access protection for users and devices worldwide. It assures identity-first security with clear visibility across multi-cloud, hybrid, and on-premises environments.

Cisco Duo provides robust multi-factor authentication and seamless integration capabilities with existing infrastructures. Appreciated for its stability and speed, it supports distributed workforces by securing VPN access, corporate networks, and cloud services. Duo’s comprehensive identity ecosystem supports easy deployment and management through a single-pane-of-glass management interface. It seamlessly merges with popular platforms like Active Directory and Office 365 across diverse hardware.

What are Cisco Duo’s Essential Features?

Multi-Factor Authentication: Offers secure access with options like push notifications and hardware tokens.
Seamless Integration: Easily fits with existing systems and third-party applications.
User-Friendly Management: Provides centralized control with a single-pane-of-glass interface.
Wide Compatibility: Supports broad applications and devices, enhancing security management.
Stable and Fast: Reliable speed and intuitive interaction for users across platforms.

What Benefits and ROI Can Cisco Duo Users Expect?

Enhanced Security: Increases protection with versatile MFA options for critical resources.
Ease of Use: Simplifies deployment and management with intuitive interfaces.
Scalability: Adapts to growing needs with broad compatibility and integration support.
Support for Distributed Workforces: Ensures secure remote access for teams anywhere.

Cisco Duo finds extensive applications across education, finance, retail, and government sectors by fortifying network and application access security. Organizations leverage it for its MFA capabilities, integrating with ERP systems, ensuring protected connectivity with VPN and cloud-based services, crucial in maintaining secure and efficient operations.

Cisco

Zscaler Zero Trust Exchange Platform acts as a VPN alternative for secure remote access, cloud protection, and zero-trust strategies. It enables secure data transmission, supports remote work, and enhances compliance through a cloud-based architecture, offering improved performance and simplified management.

Designed for organizations seeking secure application access and robust data protection, Zscaler Zero Trust Exchange Platform delivers a comprehensive solution through seamless VPN connectivity, data loss prevention, and SSL inspection. Its cloud integration ensures scalability and reliability, while its interface provides intuitive management. Companies benefit from automatic secure access, minimizing constant authentication needs, and safeguarding sensitive data. The platform allows easy deployment and integration with diverse identity providers, granting granular control for access and application segmentation. Despite powerful capabilities, enhancements are needed in speed, bandwidth, and legacy support, with users noting interface and configuration challenges.

What are the key features of Zscaler Zero Trust Exchange Platform?

Seamless VPN Connectivity: Provides automatic secure access without repetitive authentication.
Strong Security Measures: Offers DLP and SSL inspection for data protection.
Cloud Integration: Ensures scalability and performance optimization.
Granular Access Control: Manages access with application-specific segmentation.

What benefits should companies look for in reviews when evaluating this platform?

Performance: Enhanced connectivity and reduced latency.
Data Protection: Comprehensive DLP and encryption capabilities.
Scalability: Efficient handling of growing organizational demands.
Ease of Deployment: Quick setup and integration with IDPs.

In specific industries, Zscaler Zero Trust Exchange has been implemented to enhance security protocols in fields like finance and healthcare. By prioritizing data protection and compliance, it assists companies in safely managing sensitive information and meeting regulatory requirements. Organizations leverage its features to ensure secure operations across remote and cloud environments, adapting to industry-specific needs with customizable access and security controls.

Zscaler

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.

Information Not Available

Siemens, AutoNation, GE, NOV

Buyer's Guide

Cisco Duo vs. Zscaler Zero Trust Exchange Platform

July 2025

Free Report: Cisco Duo vs. Zscaler Zero Trust Exchange Platform

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