# Auth0 vs Better Auth

Canonical: https://inetgeek.com/compare/auth0-vs-better-auth/

Every value below is read from Auth0's and Better Auth's own documentation. See https://inetgeek.com/methodology/ for how.

## At a glance

| Criterion | Auth0 | Better Auth |
| --- | --- | --- |
| Free tier | Yes | Yes |
| Entry paid plan | $35/month for Essentials at 500 monthly active users; Professional is $240/month at the same volume. Both scale with the MAU slider. | $20/month for Pro on the managed infrastructure. The framework itself costs nothing — the plan buys a dashboard, audit logs and security detections around it. |
| Pricing model | Per monthly active user, chosen on a slider, with a discontinuity that is easy to miss: the free plan covers 25,000 MAU and includes an enterprise connection, SSO and SCIM, while the paid tiers start at 500 MAU and a footnote says keeping those three features requires upgrading to B2B. | The framework is free and open source and holds your user data in your own database. The paid plans price the surrounding infrastructure by event: audit logs at $0.0001 each beyond the allowance, security detections at $0.001, email at $0.001 and SMS at $0.09. |
| SAML single sign-on | Supported | Supported |
| SCIM provisioning | Supported | Supported |
| Multi-factor authentication | Supported | Supported |
| Audit logs | Audit log streaming to Datadog, Splunk, AWS and Azure, from the Essentials plan up. Auth0 publishes no retention window on the pricing page. | 10,000 audit log events a month with 1-day retention on the free Starter plan; 20,000 on Pro, then $0.0001 per event. |

## Where they differ

### Entry paid plan

- Auth0: $35/month for Essentials at 500 monthly active users; Professional is $240/month at the same volume. Both scale with the MAU slider. ([source](https://auth0.com/pricing))
- Better Auth: $20/month for Pro on the managed infrastructure. The framework itself costs nothing — the plan buys a dashboard, audit logs and security detections around it. ([source](https://www.better-auth.com/pricing))

### Pricing model

- Auth0: Per monthly active user, chosen on a slider, with a discontinuity that is easy to miss: the free plan covers 25,000 MAU and includes an enterprise connection, SSO and SCIM, while the paid tiers start at 500 MAU and a footnote says keeping those three features requires upgrading to B2B. ([source](https://auth0.com/pricing))
- Better Auth: The framework is free and open source and holds your user data in your own database. The paid plans price the surrounding infrastructure by event: audit logs at $0.0001 each beyond the allowance, security detections at $0.001, email at $0.001 and SMS at $0.09. ([source](https://www.better-auth.com/pricing))

### Audit logs

- Auth0: Audit log streaming to Datadog, Splunk, AWS and Azure, from the Essentials plan up. Auth0 publishes no retention window on the pricing page. ([source](https://auth0.com/pricing))
- Better Auth: 10,000 audit log events a month with 1-day retention on the free Starter plan; 20,000 on Pro, then $0.0001 per event. ([source](https://www.better-auth.com/pricing))

## Which should you choose?

Pick Auth0 if Projects that fit inside the free 25,000 monthly active users, which includes an enterprise connection, self-service SSO and SCIM at no cost.

Pick Better Auth if Teams that want the user table in their own database and no per-user bill at all — the framework is free, and the $20 plan buys tooling rather than access.

Consider something else: Auth0 — Leaving the free plan is a cliff rather than a step: paid tiers begin at 500 MAU, and a footnote says enterprise connections, SSO and SCIM need a B2B upgrade to keep.

Consider something else: Better Auth — You want a hosted service with an SLA rather than a library you run, since everything below the dashboard is your operational problem.

## Documented by only one

- Self-hostable: Better Auth: Supported
- Users included: Auth0: 25,000 monthly active users on the free plan — the largest free allowance here apart from WorkOS. Essentials and Professional start at 500 and are priced upward from there.
- Price per SSO connection: Better Auth: One connection included on Pro, then $50/month per connection, covering self-service SSO and Directory Sync together.

## Questions this comparison answers

**Entry paid plan: Auth0 or Better Auth?**

Auth0: $35/month for Essentials at 500 monthly active users; Professional is $240/month at the same volume. Both scale with the MAU slider.
Better Auth: $20/month for Pro on the managed infrastructure. The framework itself costs nothing — the plan buys a dashboard, audit logs and security detections around it.

**Should I choose Auth0 or Better Auth?**

Pick Auth0 if Projects that fit inside the free 25,000 monthly active users, which includes an enterprise connection, self-service SSO and SCIM at no cost.
Pick Better Auth if Teams that want the user table in their own database and no per-user bill at all — the framework is free, and the $20 plan buys tooling rather than access.