Elchi What your sign-in
would cost elsewhere.
Describe the setup. The list below is each provider's public pricing page applied to it, read on 28 September 2026, with the rule that produced every figure. A price a page does not publish is shown as not published, never guessed. Nothing you type is stored; the numbers are in the address, so the result can be linked.
-
EAuth
$0
- No paid tier. SAML per organisation, organisations, passkeys and MFA, custom domain and webhooks are included
- Self-hosted edition on the same terms
Operated from Switzerland under Swiss law; data in Switzerland and the EEA on European providers, none of them American
-
Clerk
$275
- Pro $25 a month (monthly billing); Hobby is free with Clerk branding
- Enhanced B2B Authentication add-on $100 a month for organisations
- First enterprise connection included, 2 more at $75 each
- MFA is part of the plans
United States; EU region not confirmed on the pricing page
-
WorkOS
$474
- AuthKit free up to 1,000,000 users, MFA and organisations included
- 3 SSO connections at $125 each (1 to 15)
- Custom domain $99 a month
United States; WorkOS argues sign-in may flow through US infrastructure while data stays in the EU
-
Auth0
not published
- Several enterprise connections, organisations for B2B, or MFA need Essentials or Professional. B2B Professional is invoice-only; a competitor cites $800 a month for 1,000 MAU, Auth0 does not publish it
US, EU, Australia or Japan on paid plans; no Swiss region listed
-
Stytch
$0
- Free up to 10,000 MAU, unlimited organisations, five SSO connections
United States
-
Logto
$312
- Pro $24 a month
- 3 enterprise SSO connectors at $48 each
- Organisations add-on $48
- MFA add-on $48
- Custom domains add-on $48
Custom data region on Enterprise only; open-source edition for self-hosting
-
Hanko
$176
- Pro $29 a month
- 3 SAML connections at $49 each
Germany (AWS Frankfurt only); open-source edition for self-hosting
-
Descope
$249
- Pro $249 a month with 10,000 MAU and five SSO connections
EU residency from Growth ($799 a month)
-
Kinde
$75
- Plus $75 a month, unlimited SSO connections and organisations
Choice of data residency on every plan; regions not listed on the page
-
Zitadel
$100
- Pro $100 a month: custom domain, 99.5 percent uptime guarantee, organisations and SSO included. The included daily-active-user quota is stated ambiguously on the page; check before relying on it
Switzerland (Google Cloud Zurich), EU, US or Australia on every plan
-
Supabase Auth
$35
- Pro $25 a month with 100,000 MAU
- Custom domain $10
- SAML users at $0.015 each after the first 50; the number of connections is not priced
- Organisations and roles are not a feature; you build them in your own tables
Zurich (AWS eu-central-2) or several EU regions, on every plan
What the list cannot show
The figures are the shape of each bill, not a recommendation. Auth0, Clerk, WorkOS, Stytch and Zitadel carry SOC 2 or ISO 27001 reports that a procurement questionnaire may require; EAuth has had no independent audit. Clerk and Supabase ship framework components we do not have. Several of the free tiers above are large, and if your setup fits inside one, that provider costs the same as we do until it does not.
What the list does show is where the money goes: at most providers it is the second enterprise customer, the organisations add-on or the custom domain, not the users. EAuth has none of those lines, and the comparison in the documentation says where it is the weaker choice.