Auth0 is a popular identity platform that offers Single Sign-On (SSO) and user management features, but its high starting price of $150 per month for SSO may be out of reach for smaller teams or those with customers who don't use Okta. An alternative to Auth0 SSO is WorkOS, which provides an enterprise-grade authentication platform with a more flexible and cost-effective solution for handling SSO connections, customizable authentication flows, self-hosted options, and developer-friendly API and SDKs. WorkOS offers predictable pricing without usage limits or negotiating with sales teams, making it a more straightforward and transparent approach to SSO compared to Auth0.