Duo Single Sign-On (SSO) vs Scalekit IdP-Initiated SSO: 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.

Scalekit IdP-Initiated SSO

Mid-market and enterprise teams managing multiple identity providers without a unified user directory will move fastest with Scalekit IdP-Initiated SSO, since it converts IdP-initiated requests to SP-initiated flows automatically and requires zero user migration. The JWT-signed SAML assertions and webhook support for custom workflows address the PR.AA and PR.DS functions that most SSO deployments leave half-built. Skip this if your organization has already standardized on a single IdP or needs deep directory synchronization; Scalekit solves the conversion problem, not the identity source problem.