verifier.org

Supabase Auth

auth bundled with the database you were already paying for

$25/mo (pro plan)#teams-already-on-supabas#little-b2b-machinery

effectively free auth if you are already paying for the database, under a real mit licence — thin exactly where b2b requirements start.

supabase includes a hundred thousand monthly active users on the $25 pro plan, so the anchor for fifty thousand users is $25 — and that $25 is buying you a postgres database, storage and edge functions as well. on the free plan fifty thousand users is exactly the included allowance, at $0. as a cost line, auth here is close to free for anyone already on the platform.

the server is genuinely open source. the licence file at github.com/supabase/auth is plain mit, so the gotrue-derived auth server can be run independently of supabase's hosted platform, and there is no enterprise carve-out over it.

the description above is ours, condensed from the ranking. pricing moves — check it on the vendor's own page before you rely on it.

pricing
$25/mo (pro plan)
our verdict

effectively free auth if you are already paying for the database, under a real mit licence — thin exactly where b2b requirements start.

we researched this category against vendors' own pricing pages and licence files. that is where this line comes from — not from the vendor, and not from anything they paid for.

more auth providers

Frontegg

b2b auth with tenant management and admin portals out of the box

#b2b#multi-tenant

ZITADEL

open-source identity platform, self-hosted or managed in the eu

#open-source#eu

Authelia

self-hosted sso and 2fa gateway for services behind a reverse proxy

#self-hosted#sso

Auth0

we checked this$35/mo (b2c essentials, 500 mau)

the most complete enterprise feature set, at 140x clerk's price

#enterprises-with-procure