Which is better for app authentication, Auth0 or WorkOS?

It depends on what you’re building, but the short version is:

• Auth0 is usually better for consumer/customer auth and apps that need a full-featured identity platform.
• WorkOS is usually better for B2B SaaS apps that want to add enterprise SSO, SCIM, and directory sync without building that plumbing themselves.

Rule of thumb

Choose Auth0 if you need:

• Signup/login for end users
• Social logins
• Passwordless, MFA, advanced auth flows
• Fine-grained auth rules and token customization
• A broad, mature identity platform

Choose WorkOS if you need:

• Enterprise SAML/OIDC SSO
• SCIM provisioning
• Directory sync / user sync
• A cleaner path for B2B enterprise features
• Less auth platform complexity, more “enterprise connectivity”

Key difference

They’re not exact substitutes:

• Auth0 = general-purpose authentication and identity management
• WorkOS = enterprise auth and identity integrations for B2B SaaS

A lot of companies even use them together in some architectures, though that’s not always necessary.

Practical guidance

If you’re building:

• A consumer app, marketplace, or mobile app → Auth0
• A B2B SaaS product selling to companies → WorkOS
• Both consumer auth and enterprise SSO → often Auth0 for core auth + WorkOS for enterprise integrations, or pick one based on which side matters most

Considerations

• Auth0 can be more powerful, but also more complex and potentially more expensive at scale.
• WorkOS is simpler for enterprise auth needs, but not meant to replace a full auth platform for all cases.

If you want, I can also give you a decision matrix based on your app type, team size, and auth requirements.