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Auth0 vs Microsoft Entra External ID comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 27, 2025

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
7.3
Auth0 delivers 300% ROI, reducing password issues and development costs while enhancing security and efficiency for enterprises.
Sentiment score
5.3
Microsoft Entra External ID simplifies identity management despite integration challenges and higher costs, offering time benefits and potential savings.
It has led to cost savings as well as time savings because I can use a single solution for all applications.
Companies can leverage it for setting up external identities without needing to develop their own solutions.
In terms of return on investment, prior to using this product, our company managed our own mail server with all internal authentication happening on premises, resulting in a ROI in the thousands every year.
 

Customer Service

Sentiment score
7.3
Auth0's customer service is praised for rapid responses and assistance, though smaller accounts face challenges in accessing support.
Sentiment score
5.3
Microsoft Entra External ID support receives mixed feedback, with response times, expertise, and accessibility varying across user experiences.
The support staff are engineers, not just frontline personnel, ensuring expert assistance.
Their support is excellent.
Companies without a Microsoft license for Entra ID or Azure portal cannot add Azure AD B2C, creating logistical issues for some of my clients who are unable to evaluate the platform.
The support for business applications, infrastructure support, and Entra has been mostly positive with highly skilled technicians.
The documentation is very thorough, reducing the need for support.
 

Scalability Issues

Sentiment score
7.3
Auth0 offers strong scalability with mostly positive user feedback, though some faced issues resolved by a MongoDB structural update.
Sentiment score
7.7
Microsoft Entra External ID is scalable and useful for large companies, but lacks customizable authentication and faces cloud latency.
The tool is very scalable and meets our customers' needs.
This is one of EID's weak points compared to Azure AD B2C, which offers customizable authentication options, including attribute and password combinations.
End-user workloads experience increased latency in a cloud environment compared to on-premises resources.
Microsoft Entra External ID is quite scalable, and I would rate its scalability between eight and nine out of ten.
 

Stability Issues

Sentiment score
8.9
Auth0 is praised by users for its stability, high availability, reliable performance, and excellent documentation with high ratings.
Sentiment score
7.3
Microsoft Entra External ID is highly stable and reliable, with users praising its performance and SaaS-only simplicity.
The stability of this solution is very good.
I have not encountered any stability issues with Microsoft Entra External ID.
Unless such major incidents occur, it is stable and reliable.
 

Room For Improvement

Auth0 users seek improved authorization, pricing, customization, administration flexibility, IoT integration, and enhanced Management API for user data.
Microsoft Entra External ID needs improved synchronization, cost transparency, support, software integration, alerting, security, and customization features.
By default, the user profile does not contain the name, first name, or address, which I would expect.
A reduction of 20-25% would be great.
This is particularly challenging during enterprise agreement renewals, as it's difficult for customers to review costs leading to lengthy negotiations.
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.
I would like to see a more detailed alert system that provides a summary of why alerts are generated, who is generating them, and the reasons behind it.
 

Setup Cost

Enterprise users have mixed opinions on Auth0 pricing; some find it clear and valuable, others see it as costly.
Microsoft Entra External ID's costs escalate with growth, complexity in licensing, and heavy dependency on Azure pricing structure.
The cost of the solution itself was cost-effective enough that I didn't even need to compare it with EntraID.
Regarding pricing, the cost seems high for single sign-on, especially for external applications like Oracle.
Microsoft's pricing is complex and difficult to fathom due to a range of different licensing options.
The cost can be a factor for Microsoft Entra External ID, but in general, it offers a scalable and efficient solution compared to deploying individual solutions.
 

Valuable Features

Auth0 excels in security, scalability, and integration, offering seamless authentication with extensive customization and compliance with major standards.
Microsoft Entra External ID streamlines management with easy setup, integration, and robust security, enhancing efficiency for diverse application needs.
The most important feature for me was the ease of use, as it needed to be easy to integrate into my platform.
The most valuable feature of Auth0 is its customizability.
It is crucial for hybrid environments, especially for integrating existing on-site infrastructures with cloud-based Active Directory, such as in Office 365 implementations.
EID unifies workforce users with external business partners, which is a very strong feature.
Microsoft's reliability in providing a clear roadmap for the solution is very important, especially at a time when cybersecurity is a risk in every company.
 

Categories and Ranking

Auth0
Ranking in Customer Identity and Access Management (CIAM)
1st
Average Rating
8.4
Reviews Sentiment
7.4
Number of Reviews
18
Ranking in other categories
Single Sign-On (SSO) (5th), Access Management (2nd)
Microsoft Entra External ID
Ranking in Customer Identity and Access Management (CIAM)
5th
Average Rating
7.6
Reviews Sentiment
6.3
Number of Reviews
11
Ranking in other categories
Identity and Access Management as a Service (IDaaS) (IAMaaS) (10th), Microsoft Security Suite (21st)
 

Mindshare comparison

As of July 2025, in the Customer Identity and Access Management (CIAM) category, the mindshare of Auth0 is 19.7%, down from 23.4% compared to the previous year. The mindshare of Microsoft Entra External ID is 7.7%, up from 3.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Customer Identity and Access Management (CIAM)
 

Featured Reviews

Serge Wautier - PeerSpot reviewer
Simplified integration with helpful support and decent pricing
Auth0 is used as an identity provider for our new SaaS platform to manage the identity of users Auth0 is cost-effective because it provides all the features we need, and it was very easy to integrate into our platform. The documentation is comprehensive, and their support team is highly helpful.…
Corrado Vigano - PeerSpot reviewer
Solution integrates well with existing systems while being easy to use
The fact that it is quite integrated into the entire Microsoft environment makes it quite easy to use. Furthermore, Microsoft's reliability in providing a clear roadmap for the solution is very important, especially at a time when cybersecurity is a risk in every company. The solution is easy to reuse and not difficult to find expertise for in the market because it is widespread. It is gaining attention even from partners and from the market on the offering side. This serves as a good starting point for customers who can develop internal competence on the solution. Additionally, the presence of reliable partners who know the solution and can provide internal knowledge is the best aspect for them.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
10%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
17%
Manufacturing Company
11%
Financial Services Firm
11%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Auth0?
It is very scalable because it provides a new environment for companies based on their number of users and other factors. The tool can take a lot of users.
What is your experience regarding pricing and costs for Auth0?
The cost of the solution itself was cost-effective enough that I didn't even need to compare it with EntraID.
What needs improvement with Auth0?
The pricing should be lower. A reduction of 20-25% would be great.
What is your experience regarding pricing and costs for Microsoft Entra External ID?
The cost totally depends on Azure's pricing structure. If you have sufficient background knowledge about the features and functionality, it can be cost-effective. However, if you need support or as...
What needs improvement with Microsoft Entra External ID?
Integration could be improved when it comes to legacy tools.The support engineers are not as skilled as our engineers. When they say something would not work, or there is no solution, we usually he...
What is your primary use case for Microsoft Entra External ID?
Currently we use some of the AWS ( /products/amazon-aws-reviews ) solutions and Google Solutions and few of Alibaba Cloud ( /products/alibaba-cloud-reviews ). That totally depends on time to time a...
 

Also Known As

No data available
Azure Active Directory External Identities
 

Overview

 

Sample Customers

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
Information Not Available
Find out what your peers are saying about Auth0 vs. Microsoft Entra External ID and other solutions. Updated: June 2025.
860,592 professionals have used our research since 2012.