Two Great Options. One Clear Choice.
FusionAuth and Skycloak both reject MAU pricing. But Skycloak's Keycloak foundation offers broader ecosystem support, proven enterprise scale, and unique data residency options.
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Choosing Between Alternatives
Both platforms reject per-MAU pricing. Here's what differentiates them.
Foundation Matters
FusionAuth is purpose-built but proprietary. Keycloak has 10+ years of enterprise hardening and a massive ecosystem.
Data Residency
Skycloak's SPI model lets you keep user data on your infrastructure while we manage auth - unique in the market.
Extensibility
Keycloak's SPI architecture supports thousands of existing extensions and custom providers.
Skycloak vs FusionAuth
| Feature | Skycloak | FusionAuth | Auth0 |
|---|---|---|---|
| Pricing Model | Fixed monthly | Fixed monthly | Per MAU |
| Foundation | Keycloak (CNCF) | Proprietary | Proprietary |
| Data Residency | SPI federation | Self-host only | Limited |
| Extension Ecosystem | Thousands of SPIs | Lambdas only | Actions/Rules |
| Protocol Support | OIDC, SAML, LDAP, Kerberos | OIDC, SAML | OIDC, SAML |
| Multi-Domain Mapping | Unlimited domains | Multi-tenant | 1 per tenant |
| Enterprise Track Record | 10+ years (Keycloak) | ~8 years | ~11 years |
| Managed + Self-Host | Both available | Both available | Managed only |
| Community Size | Massive (Keycloak) | Growing | Large |
Skycloak Differentiators
What sets Skycloak apart from FusionAuth.
Keycloak Ecosystem
Leverage existing Keycloak expertise, extensions, and integrations.
Data Sovereignty
Unique SPI model for regulated industries needing data control.
Protocol Breadth
LDAP, Kerberos, and legacy protocol support beyond OIDC/SAML.
CNCF Governance
Keycloak is a CNCF project - neutral governance, long-term stability.
Why Choose Skycloak
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