Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · OAuth Server Software

Apereo CAS vs Ory

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Apereo CAS #4 in OAuth Server Software 9.0/10 Free plan Free plan✓ 5 of 5 features Visit Apereo CAS
Ory #6 in OAuth Server Software 8.8/10 Free plan Free plan✓ 0 of 5 features Visit Ory

Apereo CAS leads on 0 checks, Ory on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreApereo CAS · 9.0/10
  • Free planboth
  • Most featuresApereo CAS · 5 of 5

Apereo CAS scores higher on our rubric for oauth server software: 9.0 against 8.8 out of 10; our editors rank them #4 and #6.

Apereo CAS is the better fit for auditable open-source SSO infrastructure. Ory is the better fit for managed or self-hosted identity platforms.

  • Apereo CAS fits best

    Auditable open-source SSO infrastructure

  • Ory fits best

    Managed or self-hosted identity platforms

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Apereo CAS 9.0/10 Visit ↗ Ory 8.8/10 Visit ↗
At a glance
Editor score 9.0 8.8
Ranking #4 in OAuth Server Software #6 in OAuth Server Software
Best for Auditable open-source SSO infrastructure Managed or self-hosted identity platforms
Pricing model Free Free plan + paid
Starting price Free plan —
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Cloud, Self-hosted
Platforms Web, Linux Web
Integrations 13 integrations 9 integrations
Features Apereo CAS 5/5 · Ory 0/5
OpenID Connect ✓ (best) Not checked yet
SAML support ✓ (best) Not checked yet
Self-hosting ✓ (best) Not checked yet
Token introspection ✓ (best) Not checked yet
Machine-to-machine auth ✓ (best) Not checked yet
Specs
Deployment model Self_hosted Not checked yet
Our review
Pros
  • Supports CAS, SAML, OAuth 2.0, OpenID Connect, REST, and WS-Federation
  • Connects authentication to LDAP, databases, X.509, RADIUS, MongoDB, and more
  • Includes token introspection, machine-to-machine auth, auditing, and monitoring
  • OAuth 2.0, OIDC, SAML SSO, MFA, and SCIM in one stack
  • Supports managed cloud, self-hosted, web, API, and embedded deployments
  • Fine-grained authorization, adaptive access, and machine-to-machine tokens
Cons
  • Self-hosted deployment requires internal infrastructure ownership
  • Its broad configuration surface may require specialist identity expertise
  • Best suited to organizations able to manage a Java-based identity server
  • Growth pricing is listed at $9,350 annually
  • Environment-based plans require careful capacity planning
  • Enterprise capabilities are split across multiple deployment options
Our verdict

Apereo CAS is an open-source Java server for authentication, authorization, identity management, and single sign-on. It is designed for organizations that need a self-managed identity provider, including enterprise and higher-education…

Read the review →

Ory is an identity and access management platform for customer-facing applications, B2B SaaS products, partners, machines, and AI agents. It combines user identity profiles, passwordless and passkey authentication, MFA, enterprise SSO,…

Read the review →
  1. Apereo CASOAuth Server Software 9.0Free plan
  2. OryOAuth Server Software 8.8Free plan

Strengths and trade-offs

  • Apereo CAS — where it wins

    • Supports CAS, SAML, OAuth 2.0, OpenID Connect, REST, and WS-Federation
    • Connects authentication to LDAP, databases, X.509, RADIUS, MongoDB, and more
    • Includes token introspection, machine-to-machine auth, auditing, and monitoring

    Where it doesn't

    • Self-hosted deployment requires internal infrastructure ownership
    • Its broad configuration surface may require specialist identity expertise
    • Best suited to organizations able to manage a Java-based identity server

  • Ory — where it wins

    • OAuth 2.0, OIDC, SAML SSO, MFA, and SCIM in one stack
    • Supports managed cloud, self-hosted, web, API, and embedded deployments
    • Fine-grained authorization, adaptive access, and machine-to-machine tokens

    Where it doesn't

    • Growth pricing is listed at $9,350 annually
    • Environment-based plans require careful capacity planning
    • Enterprise capabilities are split across multiple deployment options

More comparisons

All OAuth server software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update