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Auth0 Platform vs Fortinet FortiAuthenticator comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 22, 2026

Review summaries and opinions

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

ROI

Sentiment score
5.9
Cisco Duo enhances security, reduces costs, streamlines processes, and supports remote work, offering significant ROI and peace of mind.
Sentiment score
5.3
Auth0 Platform delivers 40% time savings, improved security, and cost-effectiveness, enhancing user experience with easy implementation and integration.
Sentiment score
5.0
FortiAuthenticator improves security with two-factor authentication, reduces breaches and costs, and achieves varied ROI within a year.
We were able to implement zero trust extremely quickly because of the platform and its ongoing developments, including Cisco Duo Network Gateway, which enabled that transition to zero trust extremely quickly.
Global Associate Director, Services at a leisure / travel company with 1,001-5,000 employees
Not having MFA means you cannot put a price tag on that because you will be hit with ransomware immediately.
Director at a tech vendor with 10,001+ employees
The biggest return on investment was the ease of use for the end users to have that secondary authentication when logging into the critical systems.
Manager, Data Center at a real estate/law firm with 11-50 employees
With Auth0 Platform JWTs, validation is local and cryptographic, so there is no network call needed.
Software Engineer at a financial services firm with 51-200 employees
This is beneficial when we onboard clients and explain our architecture because they recognize that Auth0 Platform is a large platform with compliance and security measures in place.
Lead Engineer at a tech vendor with 11-50 employees
Okta is unique in offering comprehensive services including single sign-on, IGA, privileged access, and endpoint security, making it a worthwhile investment compared to deploying multiple vendors.
Senior Manager And Vice President at a tech vendor with 10,001+ employees
It enhances security by ensuring only the right person can access systems, even if their login credentials are compromised.
Senior Network and Security Engineer at Symbol Technologies PLC
 

Customer Service

Sentiment score
6.8
Cisco Duo support is praised for quick responses and knowledgeable staff, with generally positive user experiences and varied ratings.
Sentiment score
6.5
Auth0 Platform is praised for responsive support, expert engineers, clear documentation, and swift resolution of complex issues.
Sentiment score
6.8
Users appreciate Fortinet FortiAuthenticator support for its quick, knowledgeable service, despite occasional slow first-level responses and efficiency declines.
They got back to us quickly, were nice, and gave us what we needed.
Infrastructure Engineer at a government with 501-1,000 employees
I would rate their support 10 out of 10.
Senior Network Engineer Specialist at Zenith Comp Co.,Ltd.
I would rate support for Cisco Duo a 10, as I have never had a negative experience.
Information Technology Contractor at Insight global
The support staff are engineers, not just frontline personnel, ensuring expert assistance.
Manager, Customer Success at Cloudworks
You have options to reach out to engineering from their side if you have any questions, and it can be escalated from support so you can get assistance from people working on the product.
Auth0 | Ciam Consultant at Intragen
On a scale of 1 to 10, I would rate customer support a 10, as they have always been very attentive and effective.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
At times, some technical staff lack knowledge, which delays issue resolution.
DevOps Engineer at YASH Technologies
Customer service and support are excellent.
Senior Network and Security Engineer at Symbol Technologies PLC
Technical support from Fortinet deserves a rating of 10.
Infrastructure Manager at Scandinavian Highlands Holding A/S
 

Scalability Issues

Sentiment score
7.3
Cisco Duo offers scalable and flexible solutions, easily expanding with organizations' growth through cloud infrastructure and simple licensing.
Sentiment score
6.5
Auth0 Platform offers scalable, cloud-native architecture with easy setup, handling high demand effectively; some users express pricing concerns.
Sentiment score
7.8
Fortinet FortiAuthenticator is scalable for various company sizes, offering flexible management options, despite minor implementation challenges.
In my last contracting position, it was a large one for a major worldwide airline that had hundreds of thousands of devices that could use Cisco Duo, and it scaled very well.
Information Technology Contractor at Insight global
You would not need many more engineers to manage Cisco Duo even if we scale up to 500 employees because it is so simple to manage.
Manager, Customer Success at SRC.SI sistemske integracije d.o.o.
Cisco Duo is scalable for organizational growth.
Technical Consultant at a tech vendor with 10,001+ employees
As I continuously add users, customers, and refactor for other applications in Auth0 Platform, it supports my application growth efficiently.
Software Engineer at Arrowlytics, LLC
This scalability comes from its cloud-native architecture and its token-based systems, operating effectively across AWS, which also helps reduce bottlenecks through JSON Web Tokens and is built on microservices architecture.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
There are no issues with scalability; Auth0 Platform is very good in this regard.
Systems Engineer at cmc
The scalability of FortiAuthenticator is good, and I would rate it an eight on a scale of one to ten.
IT Manager at PTECH
I find Fortinet FortiAuthenticator to be highly scalable, and I would rate it an eight out of ten for scalability.
Senior Network and Security Engineer at Symbol Technologies PLC
Fortinet FortiAuthenticator should be sufficiently scalable.
Network Engineer at Coop Money
 

Stability Issues

Sentiment score
8.2
Cisco Duo offers strong reliability, high performance, seamless integration, and consistently high stability ratings for authentication tasks.
Sentiment score
8.2
Auth0 Platform is highly stable and reliable, effectively managing high traffic with minimal issues, ensuring uninterrupted secure operations.
Sentiment score
7.4
Fortinet FortiAuthenticator is stable and reliable, but issues can occur with large users or new software updates.
We have not had any Cisco Duo outages across all the companies I have worked for that utilize Cisco Duo.
Senior Engineer at Frontline Fighter Ltd
The stability has been excellent.
Manager, Customer Success at SRC.SI sistemske integracije d.o.o.
I did not notice any downtime or crashes with Cisco Duo.
CTO at Red IT Solutions
For the last four years, we have not experienced any bugs from Auth0 Platform.
Senior Technical Lead at AtLink Communications Inc.
Overall, the platform has proven to be dependable and highly scalable, successfully managing increased traffic due to its stateless JWT-based authentication.
QA Engineer at a tech vendor with 11-50 employees
Unlike Azure, where I have seen outages many times, with Auth0 Platform, I never experienced such issues in the last few years.
Systems Engineer at cmc
It remains stable even when the number of concurrent users increases.
Senior Network and Security Engineer at Symbol Technologies PLC
I experienced no reliability or downtime issues.
Technical Business Development Manager at a outsourcing company with 501-1,000 employees
 

Room For Improvement

Cisco Duo needs better integration, navigation, support, customization, detailed reporting, lower pricing, and reduced authentication delays for user satisfaction.
Auth0 needs improvements in flexibility, integrations, UI, documentation, pricing, customization, education on AI, and legacy system support.
Fortinet FortiAuthenticator requires UI, integration, automation improvements, plus lower pricing and enhanced support, security, and customization features.
If you don't have internet access, you can't access your computer, only local access is available.
Security and Network Team Lead
It lacks some dynamic identity management features compared to other products such as SailPoint.
Senior Iam Associate at Cognizant
Not only has the product been very good and we have done fewer support cases, but I think support overall has been very fast.
Network Engineer at a university with 10,001+ employees
The only area for improvement is that Auth0 Platform cannot handle requests for developing APIs for legacy systems, such as mainframe models, where ForgeRock and IBM Security Verify Access can be utilized.
Senior Manager And Vice President at a tech vendor with 10,001+ employees
We must subscribe to a major plan to access most of their features. While this works well for larger companies, for small companies or those conducting POCs, this affects our budget allocation for other initiatives.
Lead Engineer at a tech vendor with 11-50 employees
Auth0 Platform's documentation is excellent, their support organization is excellent, their code is robust, and it's certified as secure.
Principal Consultant at Building Block Technologies Inc.
For example, authentication for wireless users expires after 24 hours, requiring re-authentication daily.
Head of computer systems at Indian Institute of Space Science & Technology(IIST)
For example, Cisco Duo is on the cloud, so we cannot compete with that part if a user requires a cloud-based two-factor authentication solution.
Presales Consultant
Fortinet FortiAuthenticator was primarily missing the ability to scale to web applications.
Technical Business Development Manager at a outsourcing company with 501-1,000 employees
 

Setup Cost

Cisco Duo offers flexible pricing and licensing, balancing security benefits with cost-effectiveness for enterprises, despite varying opinions.
Auth0's pricing is clear and competitive, though high costs for premium features concern larger user bases.
Fortinet FortiAuthenticator offers competitive pricing and flexible licensing, although recent price increases may impact its affordability.
The pricing is acceptable to them.
Vice President at Next Info Tech Solutions Inc
Their website lists $3 per month per user for the Essential license.
Senior Network Engineer Specialist at Zenith Comp Co.,Ltd.
One of my customers recently received a billing statement charging 3,600 US dollars for 100 users for one year.
Sr. Network Security Engineer at Topnet Internet Services Provider. Riyadh, Saudi A
A downside I remember mentioning is that pricing can be high at scale, though that is not a product issue; it relates more to the nature of large enterprise solutions.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
Considering the amount of features I use, such as multi-factor authentication, it is affordable and comparatively less for the features it is giving compared to other existing platforms.
Associate Software Engineer at a computer software company with 201-500 employees
They provide a large free tier that is beneficial to companies with applications just starting to scale their user base.
Principal Consultant at Building Block Technologies Inc.
Fortinet FortiAuthenticator is not overly expensive compared to other Fortinet subscriptions.
Senior Network and Security Engineer at Symbol Technologies PLC
Overall, Fortinet FortiAuthenticator is an inexpensive solution compared to some other security solutions, providing a simple but effective fix.
Technical Business Development Manager at a outsourcing company with 501-1,000 employees
 

Valuable Features

Cisco Duo offers strong multi-factor authentication and easy integration, enhancing security and efficiency across diverse platforms and environments.
Auth0 offers robust authentication, scalability, easy integration, and security features, ideal for enterprises needing strong identity management.
Fortinet FortiAuthenticator enhances security with 2FA, SSO, and seamless integration, offering user-friendly management and extensive protocol support.
From a management perspective, I appreciate that we can enroll or control devices on the back end for people who get a new phone and forget to handle Cisco Duo properly and need to add a new device.
Network Engineer at a educational organization with 501-1,000 employees
Our company benefits from all those features of Cisco Duo with confidence, and we feel very secure with it in terms of authentication of our logins.
Vice President at Next Info Tech Solutions Inc
The benefit of having a complete passwordless environment in our organization is that it's gotten people away from using the sticky note under their keyboard - which is a huge problem.
Director, Technology at Deer Creek High School
Being able to execute custom code snippets within Auth0 Platform to set different access levels or provide messages to users who lack access to requested pages, along with tracking and notifications, is very beneficial.
Software Engineer at Arrowlytics, LLC
Key differences include time-saving features, everything in one place, many features, support for multi-tenancy, and management APIs for easy integration.
Senior Software Engineer at a consultancy with 10,001+ employees
A big point is identity federation, allowing connections across multiple identity providers, enabling users to log in using existing accounts due to databases and enterprise identity systems.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
The integration with FortiToken is outstanding, adding a layer of security for authentication.
Senior Network and Security Engineer at Symbol Technologies PLC
We use multi-factor authentication for enhancing security.
DevOps Engineer at YASH Technologies
Fortinet FortiAuthenticator can be used from anywhere in the world, and the authenticator services function globally.
Assistant Manager-Networks at a university with 1,001-5,000 employees
 

Categories and Ranking

Cisco Duo
Sponsored
Ranking in Single Sign-On (SSO)
5th
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
164
Ranking in other categories
Authentication Systems (2nd), Access Management (5th), ZTNA as a Service (2nd), Cisco Security Portfolio (1st), Multi-Factor Authentication (MFA) (1st), AI Data Analysis (7th)
Auth0 Platform
Ranking in Single Sign-On (SSO)
4th
Average Rating
8.6
Reviews Sentiment
6.8
Number of Reviews
41
Ranking in other categories
Access Management (3rd), Customer Identity and Access Management (CIAM) (2nd), AI IT Support (3rd)
Fortinet FortiAuthenticator
Ranking in Single Sign-On (SSO)
10th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
65
Ranking in other categories
Authentication Systems (5th), Identity Management (IM) (15th), Multi-Factor Authentication (MFA) (2nd)
 

Mindshare comparison

As of November 2026, in the Single Sign-On (SSO) category, the mindshare of Cisco Duo is 3.2%, down from 4.3% compared to the previous year. The mindshare of Auth0 Platform is 6.5%, down from 7.3% compared to the previous year. The mindshare of Fortinet FortiAuthenticator is 3.7%, down from 4.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Single Sign-On (SSO) Mindshare Distribution
ProductMindshare (%)
Auth0 Platform6.5%
Cisco Duo3.2%
Fortinet FortiAuthenticator3.7%
Other86.6%
Single Sign-On (SSO)
 

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.
reviewer2805510 - PeerSpot reviewer
Partner Account Manager at a wholesaler/distributor with 51-200 employees
Identity workflows have transformed how we secure logins and manage user access daily
There are different elements to the best features Auth0 Platform offers, and I have touched on them, particularly the ability to help applications authenticate and authorize their users and manage their identities. A big point is identity federation, allowing connections across multiple identity providers, enabling users to log in using existing accounts due to databases and enterprise identity systems. A strong security feature is provided, particularly with their MFA, multi-factor authentication, which includes bot detection and brute-force protection, along with breached password detection, which is really good as an added extra. Auth0 Platform has positively impacted our organization, particularly in terms of usability. While we are not selling it directly, I find the platform easy to use for authenticating different users. Our own services team handles the implementation, so I cannot comment on the ease of that process. However, whenever we have had contracts and bids to roll out services, it has been really easy. We have seen improved security due to the implementation of Auth0 Platform. User management, such as creating and deleting users, is all about enhancing the user experience, which is massive. We assist with password resets and account linking. The time to implement is shorter, and we maintain a consistent user experience with a secure login flow, benefiting from a faster implementation due to the universal login, providing a hosted login page customizable by developers.
reviewer2848395 - PeerSpot reviewer
Technical Business Development Manager at a outsourcing company with 501-1,000 employees
Multi-factor security has improved device protection but still needs broader application coverage
Fortinet FortiAuthenticator could be improved in its cost structure. Although it is not expensive, other solutions offer more value for less money. Cisco Duo provides better value in this regard and connects to web applications much more easily, scaling effectively in that sense. While I have never used Cisco Duo to secure other devices in IoT environments, I know Cisco Duo is capable of doing so, whereas Fortinet FortiAuthenticator cannot. Additionally, Cisco Duo is also cheaper. These are the main reasons why we switched away from Fortinet FortiAuthenticator, as it was very limited compared to other solutions available. Fortinet FortiAuthenticator was primarily missing the ability to scale to web applications.
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Top Industries

By visitors reading reviews
Outsourcing Company
12%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
8%
Manufacturing Company
11%
Financial Services Firm
10%
Comms Service Provider
10%
Outsourcing Company
7%
Manufacturing Company
12%
Comms Service Provider
11%
Outsourcing Company
10%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business65
Midsize Enterprise28
Large Enterprise82
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise6
Large Enterprise16
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise11
 

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...
What is your experience regarding pricing and costs for Auth0?
Regarding pricing that I am aware of, clients are happy with the pricing of Auth0 Platform; it is not expensive, and ...
What needs improvement with Auth0?
Auth0 Platform currently does not support the concept of groups, which makes it difficult for grouping users together...
What is your primary use case for Auth0?
I use Auth0 Platform, and there are a lot of use cases I have built, mainly regarding CIAM and B2C and B2B scenarios....
What is your experience regarding pricing and costs for Fortinet FortiAuthenticator?
My experience with Fortinet FortiAuthenticator's pricing found the pricing to be good. There are better solutions ava...
What needs improvement with Fortinet FortiAuthenticator?
Fortinet FortiAuthenticator could be improved in its cost structure. Although it is not expensive, other solutions of...
What is your primary use case for Fortinet FortiAuthenticator?
Fortinet FortiAuthenticator was implemented as a multi-factor authentication solution to serve as a second barrier fo...
 

Also Known As

Duo Security
No data available
FortiAuthenticator
 

Overview

 

Sample Customers

Information Not Available
1. Airbnb 2. Accenture 3. Adidas 4. Atlassian 5. Audi 6. Baidu 7. BlackRock 8. Cisco 9. CocaCola 10. Dell 11. eBay 12. FedEx 13. Fiat Chrysler 14. Ford 15. Google 16. Groupon 17. Hewlett Packard Enterprise 18. IBM 19. Intel 20. LinkedIn 21. Mastercard 22. Mercedes Benz23. Microsoft 24. Nike 25. Oracle 26. PayPal 27. Pinterest 28. Qualcomm 29. SAP 30. Spotify 31. Tesla 32. Toyota
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Find out what your peers are saying about Auth0 Platform vs. Fortinet FortiAuthenticator and other solutions. Updated: November 2026.
921,028 professionals have used our research since 2012.