Apereo CAS vs FusionAuth
Apereo CAS
apereo.github.io
FusionAuth
fusionauth.ioSide by side
| Figure | Apereo CAS | FusionAuth |
|---|---|---|
| Price from | Free | $162/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 8 |
| Spec score · OAuth Server Software | 8.6 (#6) | 9.1 (#2) |
| Authentication | Authentication sources include LDAP, databases, X.509, SPNEGO, JAAS, JWT, RADIUS, and MongoDB. | It supports username/password login, identity providers, passkeys, and one-time passwords. |
| Deployment | CAS is a Java web application that requires JDK 25 for building and deployment according to its installation requirements. | The product can run locally, on premises, in a customer cloud, on an air-gapped server or as FusionAuth Cloud. |
| Integrations | CAS has built-in integrations for many SAML2 service providers, with configuration recipes that can automate service registration and attribute-release settings. | Identity-provider integrations include Apple, Facebook, Google, Twitter and arbitrary OIDC or SAML v2 providers, with connectors, plugins and monitoring integrations also available. |
| Operating systems | The installation requirements state there is no particular operating-system preference, though Linux-based installations are more common than Windows. | Supported operating systems include all Linux distributions, macOS 10.15 or newer, Windows Server 2019, and Windows 10. |
| Support | Community support is voluntary and has no SLAs or guarantees; the project points users to professional support agreements from commercial providers. | Community support is provided through forums, Slack, and GitHub; Essentials includes email support with a 24 to 48 hour business-hours response time, and Enterprise includes 24/7 email and phone support. |
Plans
FusionAuth
- CommunityFree
- CommunityFree
- Starter$162 a month
- Starter$162 a month
- Enterprise$2,970 a month
- Enterprise$2,970 a month
- Essentials$2,970 a month
- Essentials$2,970 a month
In their own words
Apereo CAS
Apereo CAS has no write-up on Specifiction yet; its figures are above.
FusionAuth
FusionAuth is a Customer Identity and Access Management server for authentication, authorization, and user management. It supports username and password login, passkeys, one-time passwords, and external identity providers, including Apple, Facebook, Google, and Twitter. It implements OAuth 2.0, OpenID Connect, and SAML v2. Authorization includes role-based access across users, roles, groups, applications, and entities, plus fine-grained authorization integration. Teams can customize pages and messages and use lambda functions and webhooks. It can run locally, on-premises, in private or air-gapped cloud environments, or as a managed FusionAuth Cloud instance. The free Community Edition is self-hosted and unlimited, with no trial clock. Starter costs $162 a month billed annually and includes one connector and 100 machine-to-machine entities; Essentials and Enterprise cost $2,970 a month billed annually. FusionAuth supports Android, iOS, Linux, macOS, Windows, web, and API deployments.