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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
3.6
Users faced challenges with Microsoft Entra External ID but saved costs and time compared to traditional, on-premises solutions.
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
4.6
Microsoft Entra External ID support varies; response times, documentation, and regional differences affect user satisfaction and solution accessibility.
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
6.0
Microsoft Entra External ID offers scalable security for large enterprises, with distinct policies and strong performance despite some latency issues.
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
4.8
Microsoft Entra External ID is highly stable, reliable, and smooth, with minor rare issues, and positive user feedback.
I'd rate the stability of the Microsoft Entra External ID as a 10.
The stability of this solution is very good.
I have not encountered any stability issues with Microsoft Entra External ID.
 

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 support, integration, pricing, security, UI, and customization for medium-sized businesses.
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 pricing is complex, potentially costly, but scalable, benefiting from Azure expertise and existing subscriptions.
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 enhances security, management, and user experience through integration, single sign-on, and adaptive authentication features.
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.
The detailed monitoring and reporting in Microsoft Entra External ID support compliance efforts effectively.
 

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 (4th)
Microsoft Entra External ID
Ranking in Customer Identity and Access Management (CIAM)
4th
Average Rating
7.6
Reviews Sentiment
5.5
Number of Reviews
16
Ranking in other categories
Identity and Access Management as a Service (IDaaS) (IAMaaS) (8th), Microsoft Security Suite (21st)
 

Mindshare comparison

As of October 2025, in the Customer Identity and Access Management (CIAM) category, the mindshare of Auth0 is 19.4%, down from 22.6% compared to the previous year. The mindshare of Microsoft Entra External ID is 8.4%, up from 4.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Customer Identity and Access Management (CIAM) Market Share Distribution
ProductMarket Share (%)
Auth019.4%
Microsoft Entra External ID8.4%
Other72.2%
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.…
Suresh Kumar Subramaniyan - PeerSpot reviewer
Has supported secure access but still lacks full coverage for external identity challenges
The user experience is acceptable, but Microsoft Entra External ID is not a full-fledged IGA solution. We use different products for complete Identity Governance Administration. Microsoft Entra External ID is suitable for small-scale enterprises implementing identity lifecycle management since most have Active Directory. However, there are several challenges. The out-of-the-box connector has limited features for applications, requiring us to build scheme connectors. While small-scale enterprises can benefit from Microsoft Entra External ID's Identity Governance solution, large-scale enterprises might need different tools from leading market vendors such as SailPoint or Saviynt. Customers face particular challenges with contractor and B2B accounts. Microsoft Entra External ID isn't a complete cloud-based account solution, as it must handle internal employees and collaborate with internal Active Directory. There are delays in the identity lifecycle process, especially for contract partners during onboarding and off-boarding. This might be due to back-end syncing with Active Directory. B2B account removal and provisioning take considerable time. Access governance, particularly access certification for guest users, is time-consuming. Multi-factor authentication enforcement also presents challenges for external users.
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
9%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
17%
Financial Services Firm
11%
Manufacturing Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise5
Large Enterprise6
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise6
 

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 only problem that you might face with Microsoft now is their complex licensing model.
What needs improvement with Microsoft Entra External ID?
For the last four or five years, I have been in an IT manager function, focusing on making things happen and having technical persons execute tasks. In the last three months, I have transitioned to...
What is your primary use case for Microsoft Entra External ID?
I am looking for a new solution and investigating existing products. We are already working with Microsoft Intune and SOTI. I have been working in the past with a Kaseya product, specifically Datto...
 

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: September 2025.
868,759 professionals have used our research since 2012.