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Cisco Duo vs Gluu Flex comparison

 

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

Cisco Duo
Ranking in Access Management
5th
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
76
Ranking in other categories
Single Sign-On (SSO) (4th), Authentication Systems (2nd), ZTNA as a Service (5th), Cisco Security Portfolio (4th), Multi-Factor Authentication (MFA) (2nd)
Gluu Flex
Ranking in Access Management
13th
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) (13th)
 

Mindshare comparison

As of October 2025, in the Access Management category, the mindshare of Cisco Duo is 3.9%, down from 5.9% compared to the previous year. The mindshare of Gluu Flex is 1.6%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Access Management Market Share Distribution
ProductMarket Share (%)
Cisco Duo3.9%
Gluu Flex1.6%
Other94.5%
Access Management
 

Featured Reviews

Thomas Botts - PeerSpot reviewer
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.
EV
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.

Quotes from Members

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

Pros

"My total rating for Cisco Duo is ten out of ten."
"Cisco is the perfect product for our current size, and I don't think we'll have problems with scalability as we grow."
"The most appealing feature of Cisco Duo is the phone notification system that simply pops up on your phone."
"My impression of Cisco's identity intelligence capability to detect and respond to identity-based risks effectively is that it's a great product."
"The push notifications and the integrations they offer are valuable. Their mobile app is very useful. It is very easy to use."
"We get fewer threats to remediate due to the two-factor authentication, which does not allow as many threats through."
"The app has greater stability than rival solutions such as Google Authenticator, and Duo Push authentication is a valuable feature."
"Cisco Duo has made us more secure. We've managed to stop some threats with it and keep our users and devices safe."
"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."
"Most of the features are related to banking within this particular IT industry. Security and the market are also important features."
 

Cons

"Sometimes, it's a little harder for customers to adopt."
"An enhancement they might make is if they can log it to Splunk since they're big into Splunk. Instead of me having to go into that portal to look at things when someone is trying to log in and they forgot their password, I can look in and tell them they forgot their password or didn't respond to the prompt."
"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."
"I would like to see some features simplified, such as securing, configuring, and implementing Microsoft Remote Desktop. Other than that, the solution was rock solid throughout my time administering it."
"The only thing I can think of to improve for tech support is to have a dedicated engineer but then I would get an engineer that has priorities in one area or another and maybe not the scope I need."
"I'd like to see it integrated into other applications. I know there are some integrations, but I haven't been able to explore that any further."
"One area that might be improved is that setting up SMS texting is not as easy as using the app, even though it does support it."
"I'm unsure how to disable the ping notification sound on my phone when using Cisco Duo."
"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."
 

Pricing and Cost Advice

"Cisco has the most expensive products because market leaders tend to charge a lot."
"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."
"I believe the licensing model is excellent as it offers flexibility to our customers, allowing them to adopt a crawl, walk, or run approach."
"Their pricing model is a little bit weird. Currently, there is no price advantage in signing up for yearly contracts. There are no additional costs to the standard licensing costs."
"My experience with the pricing, setup cost, and licensing of Cisco Duo has been great. We've been there for 10 years. While we haven't gone through the setup part for a while, licensing is straightforward and convenient for higher education because student populations are included. So, we don't have to pay extra for it. We just pay for our knowledge workers, which has been great, and the cost is reasonable."
"I haven't seen any information on the pricing in four years, so I can't comment on that."
"It has a fair pricing model. I know they have different tiers, but it would be nice to have different types of licenses for certain groups of users in our organization. That way, we wouldn't have to lump everybody into one group. That would be also one complaint."
"The pricing was a lot more than what we were paying for our previous solution."
"The tool is cheaper compared to typical German products. I rate the product’s pricing a four out of ten."
"The price is reasonable."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Manufacturing Company
10%
Government
6%
Financial Services Firm
6%
Insurance Company
47%
Government
14%
Comms Service Provider
10%
Media Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise16
Large Enterprise36
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 Duo for 30 days, and we could not be happier. Duo Security is easy to configure a...
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, specifically in single sign-on.
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 any of that.
What do you like most about Gluu?
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.
What is your experience regarding pricing and costs for Gluu?
The tool is cheaper compared to typical German products. I rate the product’s pricing a four out of ten. The cost depends on the model you choose. If you go bigger, like a thousand or more users, t...
What needs improvement with Gluu?
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 ...
 

Also Known As

Duo Security
No data available
 

Overview

 

Sample Customers

Information Not Available
Dubai Municipality
Find out what your peers are saying about Cisco Duo vs. Gluu Flex and other solutions. Updated: September 2025.
869,566 professionals have used our research since 2012.