No more typing reviews! Try our Samantha, our new voice AI agent.

Gluu Flex vs Symantec Zero Trust Network Access (ZTNA) comparison

Why PeerSpot?
Sponsored
 

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

Cisco Duo
Sponsored
Ranking in Access Management
5th
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
163
Ranking in other categories
Single Sign-On (SSO) (5th), Authentication Systems (2nd), ZTNA as a Service (2nd), Cisco Security Portfolio (1st), Multi-Factor Authentication (MFA) (1st), AI Data Analysis (7th)
Gluu Flex
Ranking in Access Management
24th
Average Rating
8.6
Reviews Sentiment
7.8
Number of Reviews
2
Ranking in other categories
Identity and Access Management as a Service (IDaaS) (IAMaaS) (32nd)
Symantec Zero Trust Network...
Ranking in Access Management
32nd
Average Rating
0.0
Reviews Sentiment
4.4
Number of Reviews
1
Ranking in other categories
ZTNA as a Service (22nd), ZTNA (27th)
 

Mindshare comparison

As of November 2026, in the Access Management category, the mindshare of Cisco Duo is 3.1%, down from 3.3% compared to the previous year. The mindshare of Gluu Flex is 2.0%, up from 1.5% compared to the previous year. The mindshare of Symantec Zero Trust Network Access (ZTNA) is 1.7%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Access Management Mindshare Distribution
ProductMindshare (%)
Cisco Duo3.1%
Gluu Flex2.0%
Symantec Zero Trust Network Access (ZTNA)1.7%
Other93.2%
Access Management
 

Featured Reviews

Charles Slaustas - PeerSpot reviewer
Information Technology Contractor at Insight global
Supports seamless authentication for users across multiple organizations and personal portals
The features I use in Cisco Duo include Duo Pushes to confirm my identity to the device, and eventually as MFA security was increased, I actually had to use exchange passcodes. Sometimes, I have to go into the site and get into Cisco Duo to retrieve the passcode, and many of them have been two-factor, where the sites send a passcode that I have to enter into Cisco Duo. It has been more of the latter. I have not seen issues with lagging or crashing on Cisco Duo's end; it was usually on the client end, often because someone set up a bad upgrade or there were connection issues with the Cisco Duo cloud through the administrative site.
EV
Owner at Process2product
Facilitates improvement through feedback collection, quizzes, and event data generation
Gluu has a mobile app catering to field workers. Normal workers use the web app, a complete cloud-based solution. They log in on any device and access the system. Gluu filters and displays relevant information based on the user's role in the processes. Users can set it up to view as a viewer, worker, manager, or controller of the area. The front end offers different views but provides an easy dashboard for employees. On the dashboard, users can configure it to show tasks, related work instructions, and connected processes. It's very user-friendly, allowing end-users to understand their tasks and processes without needing in-depth knowledge.
cto543714 - PeerSpot reviewer
CTO at a tech services company with 11-50 employees
Restricts access to applications but improvement is needed in integrations
Over the last year, I have been working with customers because it's changing and maturing. These things are rolled out in segments and chunks, not all at once. Additional internal work is often required to make it functional, such as properly configuring the active directory. This internal work can take up to three months. The process varies, and implementing Symantec ZTNA quickly is not realistic. I wouldn't recommend the tool to non-core customers because you won't get the support you need. I'd rate Symantec ZTNA a seven on a scale of one to ten. They're still integrating different pieces into their solution. The challenge with ZTNA is that different companies implement it slightly differently, with some features present in one product but missing in another. ZTNA is a tricky acronym that companies use, but when you look closely, you find that each vendor might only have some of the expected features.

Quotes from Members

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

Pros

"The Verified Duo Push feature is valuable. It gives an extra level of security beyond just the regular push."
"The multi-factor authentication process and the geo-locking features are great."
"Everybody loves it. They feel a sense of security when they get that prompt to send them a text, or an email."
"Cisco is the perfect product for our current size, and I don't think we'll have problems with scalability as we grow."
"It's easy to deploy. It's easy to manage. It's easy to integrate with other applications."
"The experience of deploying Cisco Duo is great; it is fast and not too complex in my opinion, as you can integrate basically anything into Duo, so I would say the experience is overall very great as an administrator."
"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."
"I love Duo Security's push notifications. It's simple, fast, and secure. From the user's perspective, the solution is seamless. The security aspect is great."
"Most of the features are related to banking within this particular IT industry. Security and the market are also important features."
"Gluu has a mobile app catering to field workers. Normal workers use the web app, a complete cloud-based solution. They log in on any device and access the system."
"The most valuable feature of this product is restricting and controlling what people have access to. If I want a contractor to connect to my network, I can give them access to only the specific things they need without giving them full VPN access to my entire network. That's the main benefit everyone gets from it. The value depends on how many users and applications you have and what you want to share."
 

Cons

"Cisco Duo can be improved, but additional features that should be included in the next release are not my area of responsibility."
"Cisco Duo can be improved by including some more pieces as far as pattern analysis."
"The only challenge is finding the right person sometimes. From what I've seen, being a named account is a big deal."
"Duo Security should better organize its tile feature to organize applications better."
"With Cisco Duo, you have to do that, and customers complain about that process. At some point, you need to be technically savvy to understand how to use Cisco Duo."
"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."
"For response time, there may be a little bit of improvement needed because sometimes you have to wait a little bit, not too long, but sometimes you really want a quick response, and it is not always like that."
"I think the location accuracy could use a little improvement because it does not always show the exact location from which I am signing in."
"I would like to see features around federation, authentication, authorization, and AI APIs with a ChatGPT interface."
"The tool integrates AI into the process modeling aspect. I believe this addition will significantly enhance usability. Additionally, it might be beneficial to have the capability to import content from other tools into this platform. Our platform follows its business process modeling notation standard, which differs from BPM. It uses a simpler notation, making it easier. The ability to import content from other tools could accommodate users accustomed to different standards."
"For areas of improvement, the main issue is with integrations. The Symantec ZTNA comprises many products cobbled together on the back end. Sometimes, the integrations work well; sometimes, they don't. For example, if you want to use two-factor authentication, you need to integrate that into the solution. Or if you want to accept protocols other than web coming to your secure gateway, that's another integration. Supporting different devices like Macs, Samsung phones, or iPhones also requires more integrations. Ensuring all these integrations work properly is an ongoing process and a moving target."
 

Pricing and Cost Advice

"The product’s pricing is reasonable."
"Our licensing fee is currently on an annual basis."
"I haven't seen it in a while, but it's at par with everything else licensing-wise."
"I only need the solution for IT staff, which makes it relatively cheap. If I deployed it for the whole company, it would be costly, so it depends on the number of users. Duo Security is affordable compared to other products in the segment."
"The cost was reasonable. Licensing was pretty straightforward for a change."
"Price wise, it's not cheap, but it's not expensive at all either. It's in the middle."
"Duo Security is free."
"Cisco has the most expensive products because market leaders tend to charge a lot."
"The price is reasonable."
"The tool is cheaper compared to typical German products. I rate the product’s pricing a four out of ten."
"Pricing varies depending on the situation. In competitive situations, it's usually priced competitively. Nobody pays the full MSRP. Typically, you negotiate and work with them on the pricing."
report
Use our free recommendation engine to learn which Access Management solutions are best for your needs.
920,939 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Outsourcing Company
12%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
8%
Insurance Company
42%
Comms Service Provider
16%
Construction Company
9%
Outsourcing Company
8%
Construction Company
14%
Outsourcing Company
13%
Financial Services Firm
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business64
Midsize Enterprise28
Large Enterprise82
No data available
No data available
 

Questions from the Community

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...
What is your experience regarding pricing and costs for Duo Security?
Regarding the pricing, what actually happened was that we got the product purchased through our HQ, so the costing as...
What needs improvement with Duo Security?
I do not have a straight answer for how Cisco Duo can be improved at this time. With the implementation that we are g...
Ask a question
Earn 20 points
Ask a question
Earn 20 points
 

Also Known As

Duo Security
No data available
Symantec Secure Access Cloud, Luminate.io, Luminate
 

Overview

 

Sample Customers

Information Not Available
Dubai Municipality
NEX, AIG, Fiverr, Upwork
Find out what your peers are saying about Microsoft, Okta, One Identity and others in Access Management. Updated: October 2026.
920,939 professionals have used our research since 2012.