# Auth0 Single Sign On vs UserLock: side-by-side comparison (2026)

[Auth0 Single Sign On](https://cybersectools.com/tools/auth0-single-sign-on) is a commercial [access management](https://cybersectools.com/categories/access-management) solution by [Auth0](https://cybersectools.com/companies/auth0). [UserLock](https://cybersectools.com/tools/userlock) is a commercial [MFA & passwordless](https://cybersectools.com/categories/user-authentication) solution by [IS Decisions](https://cybersectools.com/companies/is-decisions). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [Auth0 Single Sign On](https://cybersectools.com/tools/auth0-single-sign-on)

Best for: Product teams adding login to customer-facing apps

Auth0 fits customer identity and startup-to-enterprise product teams better than it fits internal workforce access. Teams choosing it for employee SSO should compare the workforce-specific products above first.

From [Best Access Management Solutions for Business](https://cybersectools.com/shortlists/best-access-management-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

Need the answer fast? [Best Access Management Solutions for Business](https://cybersectools.com/shortlists/best-access-management-solutions) picks Microsoft Entra ID, Okta Single Sign-On, Ping Identity Platform and 4 more.

## Side-by-side comparison

| | Auth0 Single Sign On | UserLock |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Access Management | MFA & Passwordless |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Auth0 | IS Decisions |
| Headquarters | – | – |

### Use cases and capabilities

| | Auth0 Single Sign On | UserLock |
|---|---|---|
| Single Sign On | Yes | Yes |
| Authentication | Yes | Yes |
| MFA | Yes | Yes |
| Authorization | Yes | – |
| Active Directory | – | Yes |
| Multi Tenancy | – | Yes |

### Core features

**Auth0 Single Sign On**

10 features listed. Sign in on the page to see them.

**UserLock**

No features listed.

### Integrations

**Auth0 Single Sign On**

No integrations listed.

**UserLock**

6 integrations listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Auth0 Single Sign On](https://cybersectools.com/tools/auth0-single-sign-on) fits if you want a cloud product and you are a startup.
- [UserLock](https://cybersectools.com/tools/userlock) fits if you need both cloud and on-premises options.

## Auth0 Single Sign On vs UserLock FAQ

Common questions when comparing Auth0 Single Sign On vs UserLock for access management.

### What is the difference between Auth0 Single Sign On and UserLock?

**Auth0 Single Sign On**: SSO platform enabling users to authenticate once across multiple applications, built by Auth0.

**UserLock**: IAM solution for Active Directory with MFA, SSO, and context-based access controls, built by IS Decisions.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Auth0 Single Sign On and UserLock?

**Auth0 Single Sign On** is made by Auth0. **UserLock** is made by IS Decisions. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Auth0 Single Sign On a good alternative to UserLock?

In part. Auth0 Single Sign On and UserLock are not in the same category on CybersecTools. Both cover MFA, Single Sign On, Authentication. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Auth0 Single Sign On vs Ubisecure Workforce Identity & Access Management](https://cybersectools.com/compare/auth0-single-sign-on-vs-ubisecure-workforce-identity-and-access-management)
- [Auth0 Single Sign On vs Soffid Access Management](https://cybersectools.com/compare/auth0-single-sign-on-vs-soffid-access-management)
- [Auth0 Single Sign On vs Cerebra mPass sso](https://cybersectools.com/compare/auth0-single-sign-on-vs-cerebra-mpass-sso)
- [UserLock vs Ubisecure Workforce Identity & Access Management](https://cybersectools.com/compare/ubisecure-workforce-identity-and-access-management-vs-userlock)
- [UserLock vs Soffid Access Management](https://cybersectools.com/compare/soffid-access-management-vs-userlock)
- [UserLock vs Cerebra mPass sso](https://cybersectools.com/compare/cerebra-mpass-sso-vs-userlock)

## Alternatives to each

- [See all Auth0 Single Sign On alternatives](https://cybersectools.com/alternatives/auth0-single-sign-on)
- [See all UserLock alternatives](https://cybersectools.com/alternatives/userlock)

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Source: https://cybersectools.com/compare/auth0-single-sign-on-vs-userlock

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/auth0-single-sign-on.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Auth0 Single Sign On and UserLock: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md