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FusionAuth vs Microsoft Entra External ID 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

FusionAuth
Ranking in Customer Identity and Access Management (CIAM)
12th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Microsoft Entra External ID
Ranking in Customer Identity and Access Management (CIAM)
5th
Average Rating
7.8
Reviews Sentiment
5.7
Number of Reviews
17
Ranking in other categories
Identity and Access Management as a Service (IDaaS) (IAMaaS) (10th), Microsoft Security Suite (16th)
 

Mindshare comparison

As of August 2026, in the Customer Identity and Access Management (CIAM) category, the mindshare of FusionAuth is 1.4%, down from 1.7% compared to the previous year. The mindshare of Microsoft Entra External ID is 3.8%, down from 7.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Customer Identity and Access Management (CIAM) Mindshare Distribution
ProductMindshare (%)
Microsoft Entra External ID3.8%
FusionAuth1.4%
Other94.8%
Customer Identity and Access Management (CIAM)
 

Featured Reviews

AS
Software Developer at a hospitality company with 11-50 employees
Centralized identity has unlocked secure multi-cloud microservices and accelerated delivery
FusionAuth offers several valuable features that stand out to me: control, development flexibility, deployment flexibility, and extensibility. Unlike competitors, it allows me to host it anywhere. I can deploy locally via Docker or on Kubernetes, so I am using a hybrid approach. Another valuable feature is that there is no cap on scaling. Many CIAM providers use a pricing model that starts cheap and then spikes drastically based on monthly active users, but FusionAuth's pricing does not penalize growth—you pay on feature, not per user. The deployment flexibility has helped my team from an engineering perspective and directly solves some of our biggest infrastructure challenges. If an enterprise client requires all their auth data to remain within a specific AWS region, we can support that without changing our application code. FusionAuth has positively impacted my organization by providing significant engineering cost savings. Building and maintaining a secure, compliant authentication system is difficult and requires a dedicated engineering team. This solution helps us with both time savings and cost savings since we are a fast-paced startup. Additionally, it has led to improvement in developer velocity, as when authentication is decoupled, our development teams can ship features significantly faster while meeting strict enterprise compliance. Regarding specific outcomes or metrics, I can say our developer velocity has nearly doubled, as our engineering focuses more on developing features rather than dedicating resources to authentication systems. In terms of financial impact, there has been a 150% improvement.
FS
Consultant at Artifield
Offers strong identity unification but needs better customization
Microsoft Entra External ID can be improved with additional features, specifically customizable flexibility and a customizable user interface for the login dialog. Currently, the login dialog has very limited customization options, which only include font styles, colors, text messages, or brand icons. Last month, Entra ID introduced some customizable features in their login dialog, but this does not apply to Microsoft Entra External ID, indicating a significant gap between the two. In theory, Entra External ID can support many external identity providers where custom login dialogs could be integrated, potentially via SSO feature coordination, although I have not yet confirmed this. Hence, enhanced customizable login options and the ability to use attribute password logins are critical features that are required for Microsoft Entra External ID to gain dominance in the authentication market.

Quotes from Members

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

Pros

"Regarding specific outcomes or metrics, I can say our developer velocity has nearly doubled, as our engineering focuses more on developing features rather than dedicating resources to authentication systems."
"The most beneficial feature for us is the ease of setup. With about five clicks, we can generate unique IDs and keys and set up in less than 30 minutes. We can also generate these for multiple years simultaneously, which is convenient."
"Microsoft Entra External ID is more secure, offering a secure environment."
"It's similar to using a Microsoft account to create accounts on other websites. We are also using Microsoft Entra to monitor which applications our guests are using. This allows us to filter, block, or adjust permissions for these applications as needed for our collaborators."
"The most valuable feature for me is the firewall capabilities."
"The fact that it is quite integrated into the entire Microsoft environment makes it quite easy to use."
"The experience has been rather good; there are other possibilities, but we made the choice to go with Microsoft, and we have a good experience with that."
"I have not encountered any stability issues with Microsoft Entra External ID."
"The single sign-on access is the most useful feature we use."
 

Cons

"FusionAuth could improve its UI customization for the admin console and enhance the documentation to make it more user-friendly."
"Microsoft Entra External ID isn't a complete cloud-based account solution, as it must handle internal employees and collaborate with internal Active Directory."
"The only problem that you might face with Microsoft now is their complex licensing model."
"The cost is very high."
"I would like to see faster synchronization."
"A common concern among the customers I visit is the unpredictability of Microsoft's costs at every renewal. This is really bothersome for the customer, and I would say it is the worst element I have seen in these years."
"I generally find Microsoft solutions expensive, especially in specific offerings."
"The support engineers are not as skilled as our engineers. When they say something would not work, or there is no solution, we usually hear that Microsoft would not support this."
"There is room for improvement in AI technology for Microsoft Entra External ID, particularly in providing detailed alerts."
 

Pricing and Cost Advice

Information not available
"We don't pay separately for Microsoft Entra External ID as it's part of our Microsoft Exchange subscription."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
14%
Computer Software Company
10%
Manufacturing Company
9%
Outsourcing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise6
 

Questions from the Community

What needs improvement with FusionAuth?
FusionAuth could improve its UI customization for the admin console and enhance the documentation to make it more user-friendly.
What is your primary use case for FusionAuth?
My main use case for FusionAuth is maintaining a highly congruent multi-cloud and enterprise platform. We are currently running a distributed microservice architecture and process high-volume secur...
What advice do you have for others considering FusionAuth?
Regarding FusionAuth's AI capabilities, I find they are highly focused on governance, identity security, and access control for AI agents. In terms of accuracy and reliability of output, I apprecia...
What is your experience regarding pricing and costs for Microsoft Entra External ID?
Microsoft is flexible in the pricing for the product, so I cannot say that it is expensive, but definitely they are flexible in the price lists and their ways of doing payments.
What needs improvement with Microsoft Entra External ID?
Not really at the moment, but perhaps when we go deeper into using Microsoft Entra External ID, we may experience some things we may not prefer. However, up to now, we have not encountered anything...
What is your primary use case for Microsoft Entra External ID?
When I say identity, I mean Microsoft Entra External ID. We have been using Microsoft Entra External ID since the beginning of 2022. I am using it as a client. The purposes for using Microsoft Entr...
 

Also Known As

No data available
Azure Active Directory External Identities
 

Overview

Find out what your peers are saying about Okta, Ping Identity, Microsoft and others in Customer Identity and Access Management (CIAM). Updated: July 2026.
908,834 professionals have used our research since 2012.