Apereo CAS vs Vouch Proxy
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Apereo CAS
Enterprise single sign-on server for web applications
VS
Vouch Proxy
SSO authentication helper for reverse proxies
| Feature | Apereo CAS | Vouch Proxy |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | MIT |
| Language | Java | Go |
| Setup difficulty | Hard | Medium |
| Min. RAM | 1,024 MB | 64 MB |
| Deployment | docker, kubernetes, bare-metal | docker, binary |
| GitHub stars | ★ 11,354 | ★ 3,278 |
| First released | 2004 | 2017 |
| Replaces | Okta, Ping Identity | Okta Access Gateway |
Why pick each one
Choose Apereo CAS if…
- Mature SSO with broad protocol support
- Widely adopted in academia
Frequently asked questions
Is Apereo CAS or Vouch Proxy better?
Neither is universally better. Apereo CAS has the larger community, while Vouch Proxy is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Apereo CAS and Vouch Proxy free and open-source?
Yes. Apereo CAS is licensed under Apache-2.0 and Vouch Proxy under MIT. Both can be self-hosted at no software cost.
Can I run Apereo CAS and Vouch Proxy with Docker?
Apereo CAS: yes. Vouch Proxy: yes.