Auth0 Review 2026: Pricing, Pros, Cons and Alternatives

The buying question on Auth0 is which toggle you are on, because B2C and B2B are different price lists and the Free plan is the only one that looks the same on both. A consumer app that needs a second factor lands on a cheap Essentials card and loses enterprise SSO, which undoes the free proof of concept. A product that sells to companies lands on a much higher Essentials card and keeps that connection.

Toolradar data: as of October 16, 2026, Toolradar tracks 91 identity and access tools. Auth0 is listed as an alternative to 56 of them, second to Keycloak at 59, on the identity and access ranking. The directory pages for Auth0 and Clerk are the catalog records to open beside this price.

How we compared: cards, feature rows, and user tiers were read on October 16, 2026, on Auth0's pricing page and its pricing table, then on the pricing pages for Clerk, WorkOS, Stytch, Amazon Cognito, and Firebase. No tenant was created. The method is the one on how we rate.

Auth0 is Okta's customer identity platform, and it signs end users in with a database login, social providers, passwordless, and enterprise identity providers such as SAML. The pricing page calls Organizations the way Auth0 models your business customers. A workforce directory for your own employees is a different Okta product, and a workforce quote does not cover this login.

Universal Login is the hosted page users see, and custom logic is Auth0 Actions: five on Free, ten on Essentials, fifteen on Professional, and 30 on Enterprise before an add-on, so the workflow cap can force an upgrade before the user cap does. Passkeys and passwordless login (SMS, email, passkey, and one-time codes) are already on Free, so dropping passwords does not require a paid plan.

A monthly active user is any non-employee who authenticates that month on the tenant, and staff do not count, so customer sign-ins are what the bill follows.

You create a tenant, register the app, and pick a connection: Auth0's database, a social provider, or a customer's identity provider. Universal Login is the page they see, on Auth0's domain or on yours.

The plan toggle changes what that connection is allowed to be. Free includes one enterprise connection, self-service SSO, and SCIM, plus unlimited Okta enterprise connections, subject to system limits, which is enough to demo one customer's SAML login before you pay. The B2C Essentials and B2C Professional cards both carry the same footnote: upgrade to B2B to keep using those connections. The moment Pro MFA forces a B2C paid plan, that demo connection leaves the plan.

Free keeps logs for one day, Essentials for five, Professional for ten, and Enterprise for 30, so a login review cannot stay on Free, and streaming starts on Essentials. Free allows three dashboard admins, and a custom domain on Free still needs a card to verify, so the branded host is the part of Free that is not cardless.

Auth0 publishes two paid ladders plus Free, and the toggle between them changes the bill. Prices checked on October 16, 2026 on Auth0's pricing page and the pricing table behind it. The default slider is the tier in the table below. B2C Professional is $240/mo there and B2B Professional is $800/mo, and Enterprise is contact sales on both.

At the next published step of 1,000 users, B2C Essentials is $70/mo and B2B Essentials is $300/mo. Both Professional prices stay on the default card through that step. If your count falls between published steps, Auth0 bills the next step up, so a count between rungs pays the higher one. B2B Essentials and both Professional ladders route you to sales at the 30,000-user mark.

Yearly billing is the monthly price with one month free. The B2B yearly cards show that directly: Essentials is $1,650 a year and Professional is $8,800 a year at the default tier. B2B Essentials charges $100/mo for enterprise MFA and the same amount for each enterprise connection past the ones included, up to 30, so the next identity provider is an extra line, while Professional includes five connections and enterprise MFA. Auth0 for AI Agents adds 50% to the base price.

Set a B2B app that needs the included customer identity providers against WorkOS. Auth0's next B2B Essentials step already includes those connections. WorkOS AuthKit stays free through its published user allowance, and each SSO connection in the first band is $125, so matching the connections Auth0 includes costs $375 a month before any user overage. One connection reverses it: WorkOS is that single rate, and Auth0 stays on the Essentials step. Clerk Pro is a flat fee with one SSO connection included. Stytch includes a set of SSO or SCIM connections, then charges per connection.

Amazon Cognito Essentials includes 10,000 monthly active users for direct and social sign-in, then $0.015 per user. Firebase includes email and social sign-in on Spark and Blaze, so ordinary login adds nothing to that project. Identity Platform is free to 50,000 monthly active users, then $0.0055 per user up to 100,000 on the Identity Platform price list. SAML and OIDC there are free for 50 users.

Auth0 fits a product team that wants a hosted login, social providers, and a free proof of concept with one customer identity provider. Stay on Free while passwordless and that single connection are the requirement, since the paid plans exist to add MFA. Move to B2B Essentials when a second and third customer will bring their own identity provider and you can defend that plan against WorkOS.

Skip the B2C paid plans if the reason you liked Free was the enterprise connection. Those plans are the right buy for OTP or Duo MFA, ten organizations, and a separate dev tenant, and they are the wrong buy for SAML, which leaves with the upgrade. A team that wants MFA inside a flat monthly fee, with prebuilt components, should price Clerk before it prices Professional.

Skip Auth0 when login sits on a database you already pay for. The Supabase review, the Firebase review, and the authentication pricing comparison cover that bill, and an AWS account should price Cognito before a hosted identity vendor. For the self-hosted exit, read the Appwrite review and the backend-as-a-service roundup, and subscribe free for the next plan-card change.