Auth0 Passwordless Authentication vs Auth0 Single Sign On: Side-by-Side Comparison (2026)

Auth0 Passwordless Authentication: Passwordless authentication platform using passkeys, biometrics, and SMS/email. built by Auth0. Core capabilities include Passkey-based authentication, WebAuthn biometric authentication (face and fingerprint), SMS-based passwordless authentication..

Auth0 Single Sign On: SSO platform enabling users to authenticate once across multiple applications. built by Auth0. Core capabilities include Universal Login customizable authentication interface, Single Sign On across multiple applications, Single Sign Off session termination..

Both serve the MFA & Passwordless market but differ in approach, feature depth, and target audience.

Auth0 Passwordless Authentication differentiates with Passkey-based authentication, WebAuthn biometric authentication (face and fingerprint), SMS-based passwordless authentication. Auth0 Single Sign On differentiates with Universal Login customizable authentication interface, Single Sign On across multiple applications, Single Sign Off session termination.

Auth0 Passwordless Authentication is developed by Auth0. Auth0 Single Sign On is developed by Auth0. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Auth0 Passwordless Authentication and Auth0 Single Sign On serve similar MFA & Passwordless use cases: both cover Single Sign On, Authentication, MFA. Review the feature comparison above to determine which fits your requirements.