# FusionAuth vs Privakey SSO & IdS: side-by-side comparison (2026)

[FusionAuth](https://cybersectools.com/tools/fusionauth-security) is a commercial [CIAM](https://cybersectools.com/categories/ciam) solution by [FusionAuth](https://cybersectools.com/companies/fusionauth). [Privakey SSO & IdS](https://cybersectools.com/tools/privakey-sso-and-ids) is a commercial [MFA & passwordless](https://cybersectools.com/categories/user-authentication) solution by [Privakey](https://cybersectools.com/companies/privakey). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | FusionAuth | Privakey SSO & IdS |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | CIAM | MFA & Passwordless |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | FusionAuth | Privakey |
| Headquarters | – | – |

### Use cases and capabilities

| | FusionAuth | Privakey SSO & IdS |
|---|---|---|
| Authentication | Yes | Yes |
| Authorization | Yes | – |
| MFA | Yes | Yes |
| Password Management | Yes | – |
| Data Breach | Yes | – |
| SSO | Yes | Yes |
| Agentic AI Security | Yes | – |
| Single Sign On | – | Yes |
| Passwords | – | Yes |
| Zero Trust Architecture | – | Yes |
| ZTNA | – | Yes |

### Core features

**FusionAuth**

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

**Privakey SSO & IdS**

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

### Integrations

**FusionAuth**

No integrations listed.

**Privakey SSO & IdS**

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.

- [FusionAuth](https://cybersectools.com/tools/fusionauth-security) fits if you need both cloud and on-premises options and you are a startup.
- [Privakey SSO & IdS](https://cybersectools.com/tools/privakey-sso-and-ids) fits if you want a cloud product.

## FusionAuth vs Privakey SSO & IdS FAQ

Common questions when comparing FusionAuth vs Privakey SSO & IdS for CIAM.

### What is the difference between FusionAuth and Privakey SSO & IdS?

**FusionAuth**: AuthN, AuthZ, and identity management you can deploy anywhere and control end to end, built by FusionAuth.

**Privakey SSO & IdS**: Passwordless SSO and CIAM suite using biometrics and asymmetric crypto, built by Privakey.

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

### Who makes FusionAuth and Privakey SSO & IdS?

**FusionAuth** is made by FusionAuth. **Privakey SSO & IdS** is made by Privakey. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is FusionAuth a good alternative to Privakey SSO & IdS?

In part. FusionAuth and Privakey SSO & IdS are not in the same category on CybersecTools. Both cover SSO, MFA, Authentication. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [FusionAuth vs ZITADEL](https://cybersectools.com/compare/fusionauth-security-vs-zitadel)
- [FusionAuth vs Descope CIAM Platform](https://cybersectools.com/compare/descope-ciam-platform-vs-fusionauth-security)
- [FusionAuth vs Auth0 Platform](https://cybersectools.com/compare/auth0-platform-vs-fusionauth-security)
- [Privakey SSO & IdS vs ZITADEL](https://cybersectools.com/compare/privakey-sso-and-ids-vs-zitadel)
- [Privakey SSO & IdS vs Descope CIAM Platform](https://cybersectools.com/compare/descope-ciam-platform-vs-privakey-sso-and-ids)
- [Privakey SSO & IdS vs Auth0 Platform](https://cybersectools.com/compare/auth0-platform-vs-privakey-sso-and-ids)

## Alternatives to each

- [See all FusionAuth alternatives](https://cybersectools.com/alternatives/fusionauth-security)
- [See all Privakey SSO & IdS alternatives](https://cybersectools.com/alternatives/privakey-sso-and-ids)

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Source: https://cybersectools.com/compare/fusionauth-security-vs-privakey-sso-and-ids

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

More on FusionAuth and Privakey SSO & IdS: 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