Udibo vs Supabase Auth

Supabase Auth is the identity service bundled with the Supabase database: 50,000 monthly active users free, with authorization expressed as the row-level security policies you write in SQL. Udibo gives you hosted sign-in behind a standard OAuth 2.0 boundary, with organizations, roles, and per-resource permissions a backend can check over HTTP, and audit history measured in months rather than hours. The difference that decides most evaluations: with Supabase your authorization model is your database; with Udibo it is a service your application asks, whichever database sits behind it.

Checked September 7, 2026 against Supabase's pricing page. Udibo Identity is in private beta, and its prices are a preview, not an adopted rate card.

The short version

Why teams pick Udibo over Supabase Auth

• Organizations and roles are a product, not a schema. Supabase's own guide to role-based access has you create user_roles and role_permissions tables and write a Custom Access Token hook that copies the role into the JWT (Supabase RBAC guide). Udibo ships organizations with invitations, memberships, and roles on every plan, places no cap on organizations or members, and lets a person hold a different role in each.

• Permissions that follow the resource. Register the permission strings your application interprets, attach them to roles across a tenant, inside one organization, or on a single resource of your own, and read the answer from the token's claims or from a hosted check. Row-level security answers the same question well when the data lives in Supabase's Postgres; when part of it lives somewhere else, the policy has to be rebuilt there.

• Identity that does not move with the database. Your application talks to Udibo through OAuth 2.0 and OpenID Connect, with the active organization and its roles in the token. Any OpenID Connect client works, and leaving means changing an issuer. Supabase Auth's tokens and the policies that read them are designed together: the strength while you stay, the cost when you go.

• A record you can take with you. At least 90 days of audit history on every plan, exportable as CSV or NDJSON. Supabase keeps auth audit logs for 1 hour on Free, 7 days on Pro, and 28 days on Team.

• A bill about users, not the instance under them. Udibo's preview bills three things: retained users, hosted permission checks, and the email Udibo sends for you. Supabase Pro's $25 carries $10 a month in compute credits, enough for one Micro instance (2-core ARM, 1 GB); larger instances run from Small at $15 to 8XL at $1,870 a month, with disk at $0.125 per GB past 8 GB and egress at $0.09 per GB past 250 GB. Whether Micro is enough depends on your database as much as your users, and the pricing page does not say.

• Email you can ship with. Supabase's default sender allows 2 messages per hour, is meant for demos and toy projects, and Supabase urges a custom SMTP server for everything else (Supabase custom SMTP). Udibo's Free plan includes 1,000 emails and Standard 10,000, then $1 per 1,000; your own sender is never metered on either.

• Sign-in pages you do not build, in your name. Udibo hosts sign-in and returns to your application, with your name, logo, and colors and no vendor badge on any plan. With Supabase Auth the sign-in form is code in your application, built from the client library or Supabase's UI blocks (Supabase UI: password-based auth).

Why Supabase Auth may still be the right choice

• Your data is already there, and row-level security is the model. Policies are SQL on the table, auth.uid() and auth.jwt() are available inside them, and the same rule protects the data whichever client reads it (Supabase row-level security). Database, storage, realtime, and auth arrive in one console; Udibo is an identity service, and your data layer is yours to choose and run.

• Far more users included. 50,000 monthly active users on Free and 100,000 on Pro for $25, then $0.00325 per MAU. Udibo's preview includes 500 retained users on Free and 5,000 on Standard; at 100,000 users Supabase's listed auth price is $25 and Udibo's is about $290.

• SAML and phone MFA today. Supabase offers SAML 2.0 single sign-on on Pro (50 MAU included, then $0.015 per MAU) and phone-based MFA for $75 a month for the first project. Udibo does not offer hosted SAML or phone MFA; its MFA is authenticator apps with recovery codes.

• Generally available. Supabase Auth is a production dependency you can adopt this afternoon. Udibo Identity is in private beta.

Pricing side by side

Supabase's published list and Udibo's pricing preview, same date. The two count users differently: Supabase bills monthly active users; Udibo's retained user is "A person who returns more than 24 hours after signing up. Counted once per tenant per UTC calendar month, across its organizations."

Three worked examples, with the same assumptions on both sides:

Sources: Supabase pricing, Supabase custom SMTP, and Udibo's pricing preview. Both change; check the vendor's current page before you decide.

Cost at scale

Users only, same definition on both sides, on the plan that gives you MFA and your own branding. Udibo's figures are preview rates; the vendor's are its published list on the date above.

Supabase's user price is close to Udibo's at a million users and far below it in between. What the table leaves out is the compute under those users: Pro's $25 covers one Micro instance, and the ladder above it runs $15 to $1,870 a month. Udibo's bill does not depend on a database tier.

What the integration looks like

With Udibo, register an application and its callback, send people to the hosted sign-in page, and finish the authorization-code flow on your server. Your backend holds the session and the browser gets a cookie, never a token. The first-login guide walks each checkpoint, and the organizations and permissions guides cover a person with a different role in each of two organizations. A role assigned on one resource is answered by the hosted check, not by the token.

With Supabase, the client library in your application signs people in and persists the tokens it is issued; the database enforces row-level security policies that read auth.uid() and auth.jwt() from that token (Supabase Auth, Supabase Auth architecture).

Neither approach removes your responsibility to protect application data: on Udibo it sits on your server, on Supabase in the policies on each table, and a permissive policy is a bug the login flow will not reveal.

Where Udibo needs a closer look

Udibo does not currently offer hosted passkeys, SAML, SCIM, phone-based MFA, or dashboard-driven custom domains. It is an identity service, not a backend platform: no hosted database, storage, or realtime, and no client that speaks Supabase's API. Tenant-management calls need administrator credentials rather than an application's machine token, and the @udibo/oauth2 package supplies protocol building blocks, not a hosted edition of the service. If a policy that matters today lives in SQL, test the whole journey through your backend before committing; a successful login alone does not establish parity.

Moving an existing Supabase application

Inventory row-level security policies, database functions, storage policies, realtime access, and every piece of code that assumes Supabase's JWT claims. Decide whether to keep your current data-access design with a supported identity integration or move access behind your backend, and verify that choice against the actual database configuration rather than the intended one.

Give your own user records stable IDs and record the mapping from the old issuer and subject to the new one; do not use email alone as an automatic account-linking rule. Test access with invalid, expired, and wrong-issuer tokens so a permissive policy does not become the shortcut that makes the new login appear to work. Password hashes, MFA enrollment, and sessions do not move with a profile; plan a re-enrollment path. See migration planning and user import, and keep a tested denial path for every protected data surface.

Try next: complete one Udibo login, then give a person two organizations and a different role in each, and check one from your own backend. If you are on the waitlist, the agent integration brief lets your coding assistant prepare the integration in the meantime.

Frequently asked questions

Is Udibo cheaper than Supabase Auth? On users alone, no, until around a million. If your application already pays for a Supabase database, its auth is close to free. The comparison changes when the compute under your users has to grow to serve them, or when organizations, custom roles, MFA, and audit history are things you would otherwise build and operate in your schema.

Can I use Udibo with a Supabase database? Yes. Udibo is an OpenID Connect provider; your backend validates its tokens and decides what each request may read, whatever database sits behind it. Row-level security keyed on Udibo's claims is your call.

Does Udibo have row-level security? No. Udibo answers who someone is and which roles they hold, in the token or through a hosted check; enforcing it on each row is your application's job, the same as with any identity provider.

Can I move from Supabase Auth to Udibo? Supabase stores bcrypt hashes you can export; Udibo imports profiles and supported hashes with an upgrade on first sign-in and links social identities by subject. See migration planning and user import.

Last verified 2026-09-07.