Duo Single Sign-On (SSO) vs Rublon Authenticator: Side-by-Side Comparison (2026)

Duo Single Sign-On (SSO)

Mid-market and enterprise teams tired of password resets and MFA friction will find Duo SSO's passwordless authentication and adaptive access policies actually reduce help desk tickets without sacrificing security. The platform's support for both cloud and on-premises applications through SAML 2.0 and OIDC, plus pre-built integrations for hundreds of apps, means you're not building custom connectors for six months. Skip this if your organization needs deep identity governance, entitlement management, or advanced threat detection; Duo SSO prioritizes frictionless authentication over the broader identity lifecycle controls that larger enterprises typically demand from their IAM platform.

Rublon Authenticator

Teams choosing a free MFA app to reduce password risk without vendor lock-in will find Rublon Authenticator's one-tap push notifications faster than TOTP entry, especially on repeat logins. The app supports multiple accounts and devices from a single install, cutting deployment friction for users managing 5+ apps or accounts. Skip this if your org needs deep integration with identity platforms or audit logging tied to conditional access policies; Rublon stays purposefully simple as a standalone authenticator.