Apereo CAS vs WorkOS
Apereo CAS
apereo.orgWorkOS
workos.comSide by side
| Figure | Apereo CAS | WorkOS |
|---|---|---|
| Price from | Free | $99/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 10 |
| Spec score · Authentication Software | 8.2 (#11) | 8.5 (#8) |
| Spec score · Single Sign-On Software | 8.2 (#13) | 8.5 (#10) |
| Integrations | CAS provides integrations with SAML2 service providers and supports SCIM, reCAPTCHA, and Swagger. | The integration catalog includes SAML and SCIM providers, HR systems, OAuth services, React Native Expo, Supabase, Stripe and Segment. |
| Purpose | CAS is a multilingual single sign-on solution and open-source identity provider for web authentication and authorization. | WorkOS provides building blocks and APIs for adding enterprise features to applications. |
| Support | Apereo staff do not provide technical project support but direct users to project communities and mailing lists, including CAS security, developer, and user lists. | All accounts include email support, in-dashboard web support, API status notifications, documentation, and example apps. |
Plans
WorkOS
- AuthKitFree
- RadarFree
- Standard SupportFree
- Custom Domain$99 a month
- Audit Logs$125 a month
- Directory Sync$125 a month
- Single Sign-On$125 a month
- Scale Support$1,000 a month
- Annual CreditsPriced on request
- Enterprise SupportPriced on request
In their own words
WorkOS
WorkOS provides APIs and hosted components for SaaS companies adding enterprise capabilities to applications. Its User Management supports SAML and OIDC identity providers, social authentication, and passwordless email codes. Directory Sync handles SCIM provisioning and HRIS integrations for user lifecycle management. Customer IT administrators can configure identity providers and directories in a hosted Admin Portal with custom branding and a custom domain. Developers get REST APIs, JSON responses, webhooks, and SDKs for Node.js, Ruby, Python, .NET, Go, PHP, and Java. AuthKit includes email and password, magic-code sign-in, MFA, passkeys, organization policies, JIT provisioning, RBAC, and CLI authentication. WorkOS lists API, iOS, and web platforms, plus integrations such as Okta, Microsoft Entra ID, Google Workspace, Salesforce, Slack, and Stripe. Pricing is freemium: free plans exist, while paid products start at $99/mo for Custom Domain and $125/mo for SSO or Directory Sync.