# Auth0 Single Sign On vs Curity Identity Server: 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). [Curity Identity Server](https://cybersectools.com/tools/curity-identity-server) is a commercial [access management](https://cybersectools.com/categories/access-management) solution by [Curity](https://cybersectools.com/companies/curity). 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 | Curity Identity Server |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Access Management | Access Management |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Auth0 | Curity |
| Headquarters | – | – |

### Use cases and capabilities

| | Auth0 Single Sign On | Curity Identity Server |
|---|---|---|
| Single Sign On | Yes | – |
| Authentication | Yes | Yes |
| MFA | Yes | Yes |
| Authorization | Yes | Yes |
| SSO | – | Yes |
| JWT Security | – | Yes |
| Zero Trust Architecture | – | Yes |

### Core features

**Auth0 Single Sign On**

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

**Curity Identity Server**

No features listed.

### Integrations

**Auth0 Single Sign On**

No integrations listed.

**Curity Identity Server**

10 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.
- [Curity Identity Server](https://cybersectools.com/tools/curity-identity-server) fits if you need both cloud and on-premises options.

## Auth0 Single Sign On vs Curity Identity Server FAQ

Common questions when comparing Auth0 Single Sign On vs Curity Identity Server for access management.

### What is the difference between Auth0 Single Sign On and Curity Identity Server?

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

**Curity Identity Server**: Identity server platform for managing authentication and access decisions. Built by Curity.

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

### Who makes Auth0 Single Sign On and Curity Identity Server?

**Auth0 Single Sign On** is made by Auth0. **Curity Identity Server** is made by Curity. 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 Curity Identity Server?

Often, yes. Auth0 Single Sign On and Curity Identity Server are both Access Management products, and both cover Authentication, Authorization, MFA. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Auth0 Single Sign On vs F5 BIG-IP Zero Trust Access](https://cybersectools.com/compare/auth0-single-sign-on-vs-f5-big-ip-access-policy-manager-apm)
- [Auth0 Single Sign On vs Microsoft Entra ID](https://cybersectools.com/compare/auth0-single-sign-on-vs-microsoft-entra-id)
- [Auth0 Single Sign On vs SecurEnvoy Access Management](https://cybersectools.com/compare/auth0-single-sign-on-vs-securenvoy-access-management)
- [Curity Identity Server vs F5 BIG-IP Zero Trust Access](https://cybersectools.com/compare/curity-identity-server-vs-f5-big-ip-access-policy-manager-apm)
- [Curity Identity Server vs Microsoft Entra ID](https://cybersectools.com/compare/curity-identity-server-vs-microsoft-entra-id)
- [Curity Identity Server vs SecurEnvoy Access Management](https://cybersectools.com/compare/curity-identity-server-vs-securenvoy-access-management)

## Alternatives to each

- [See all Auth0 Single Sign On alternatives](https://cybersectools.com/alternatives/auth0-single-sign-on)
- [See all Curity Identity Server alternatives](https://cybersectools.com/alternatives/curity-identity-server)

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Source: https://cybersectools.com/compare/auth0-single-sign-on-vs-curity-identity-server

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 Curity Identity Server: 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