Supabase Auth (GoTrue) is convenient, but Supabase is a US company and even the EU region runs on AWS under US jurisdiction. Tuurio ID gives you the same standard OIDC login with real data sovereignty in Germany.
Supabase Auth is a popular auth layer built on GoTrue. Choosing the Frankfurt region solves data residency, but Supabase Inc. is a US-incorporated company and the region runs on AWS — both still fall under US jurisdiction. Under the CLOUD Act, a US company can be compelled to hand over data wherever it is stored, which keeps Schrems II risk on the table for EU services.
Tuurio ID is a German identity provider hosted in Germany. You keep standard OpenID Connect and gain real data sovereignty, enforceable MFA, passkeys, and proper multi-tenant organizations — backed by an Art. 28 GDPR data-processing agreement.
Sovereignty, security and organization depth beyond a database-bundled auth layer.
A German company and data center, not a US firm running an EU region.
Enforceable MFA and phishing-resistant passkeys, included.
Tenants, organizations and roles for real B2B products.
Standard OIDC/OAuth2 — keep your database, swap the auth layer.
How an EU-hosted identity provider compares to Supabase Auth on sovereignty and security.
| Criterion | Supabase Auth | Tuurio ID |
|---|---|---|
| Company & jurisdiction | US company (CLOUD Act) | German company (EU) |
| Hosting / data location | AWS EU region, US jurisdiction | Germany (EU) |
| GDPR / Schrems II | CLOUD Act exposure | compliant, DPA |
| MFA & passkeys | basic | included, enforceable |
| Organizations / multi-tenant | limited | yes |
| Standard OIDC / OAuth2 | partly proprietary | yes |
Last reviewed: June 2026. Public competitor information can change; verify plan details and legal terms before deciding.