# Circle Security Circle Access vs ZITADEL: side-by-side comparison (2026)

[Circle Security Circle Access](https://cybersectools.com/tools/circle-security-circle-access) is a commercial [MFA & passwordless](https://cybersectools.com/categories/user-authentication) solution by [Circle Security](https://cybersectools.com/companies/circle-security). [ZITADEL](https://cybersectools.com/tools/zitadel) is a commercial [CIAM](https://cybersectools.com/categories/ciam) solution by [ZITADEL](https://cybersectools.com/companies/zitadel). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best MFA and Passwordless Solutions for Business](https://cybersectools.com/shortlists/best-mfa-passwordless-solutions) picks Okta Adaptive MFA, Duo Security Cisco Duo Passwordless, Beyond Identity Phishing-Resistant MFA and 4 more.

## Side-by-side comparison

| | Circle Security Circle Access | ZITADEL |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | MFA & Passwordless | CIAM |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | Enterprise, Mid-Market | Startup, SMB, Mid-Market, Enterprise |
| Company | Circle Security | ZITADEL |
| Headquarters | – | – |

### Use cases and capabilities

| | Circle Security Circle Access | ZITADEL |
|---|---|---|
| Authentication | Yes | Yes |
| Zero Trust Architecture | Yes | – |
| MFA | Yes | Yes |
| NIST | Yes | – |
| ZTNA | Yes | – |
| SSO | Yes | Yes |
| Least Privilege | Yes | – |
| BYOD | Yes | – |
| REST API | Yes | Yes |
| Authorization | – | Yes |
| RBAC | – | Yes |
| Multi Tenancy | – | Yes |
| Open Source | – | Yes |
| Passwords | – | Yes |
| Single Sign On | – | Yes |

### Core features

**Circle Security Circle Access**

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

**ZITADEL**

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

### Integrations

**Circle Security Circle Access**

No integrations listed.

**ZITADEL**

3 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.

- [Circle Security Circle Access](https://cybersectools.com/tools/circle-security-circle-access) fits if you want a cloud product.
- [ZITADEL](https://cybersectools.com/tools/zitadel) fits if you need both cloud and on-premises options and you are a startup or a small business.

## Circle Security Circle Access vs ZITADEL FAQ

Common questions when comparing Circle Security Circle Access vs ZITADEL for MFA & passwordless.

### What is the difference between Circle Security Circle Access and ZITADEL?

**Circle Security Circle Access**: Credential-free authentication via QR scan with zero credential storage, built by Circle Security.

**ZITADEL**: Open-source, multi-tenant identity platform for authn, authz, and SSO, built by ZITADEL.

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

### Who makes Circle Security Circle Access and ZITADEL?

**Circle Security Circle Access** is made by Circle Security. **ZITADEL** is made by ZITADEL. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Circle Security Circle Access a good alternative to ZITADEL?

In part. Circle Security Circle Access and ZITADEL are not in the same category on CybersecTools. Both cover Authentication, SSO, MFA. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Circle Security Circle Access vs Cyphercor MFA Solutions](https://cybersectools.com/compare/circle-security-circle-access-vs-cyphercor-mfa-solutions)
- [Circle Security Circle Access vs Privakey SSO & IdS](https://cybersectools.com/compare/circle-security-circle-access-vs-privakey-sso-and-ids)
- [Circle Security Circle Access vs Gradient for Users](https://cybersectools.com/compare/circle-security-circle-access-vs-gradient-for-users)
- [ZITADEL vs Cyphercor MFA Solutions](https://cybersectools.com/compare/cyphercor-mfa-solutions-vs-zitadel)
- [ZITADEL vs Privakey SSO & IdS](https://cybersectools.com/compare/privakey-sso-and-ids-vs-zitadel)
- [ZITADEL vs Gradient for Users](https://cybersectools.com/compare/gradient-for-users-vs-zitadel)

## Alternatives to each

- [See all Circle Security Circle Access alternatives](https://cybersectools.com/alternatives/circle-security-circle-access)
- [See all ZITADEL alternatives](https://cybersectools.com/alternatives/zitadel)

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Source: https://cybersectools.com/compare/circle-security-circle-access-vs-zitadel

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

More on Circle Security Circle Access and ZITADEL: 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