Auth0 vs Better Auth
A comparison of Auth0 and Better Auth built from values read directly from each provider's own documentation, with the source recorded against every figure.
The short answer
- 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.
3 sourced criteria separate them:
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Pick the criteria you care about. The chart counts how many of them lean toward each provider — the same read as scanning the bars below, just totalled for the ones you chose.
Auth0 0
Better Auth 0
At a glance.
| Criterion | Auth0 | Better Auth |
|---|---|---|
| Pricing | ||
| 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. |
| Auth | ||
| 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.
- 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.
Sources (2) →Sources ↓
- Pricing — Auth0 ↗
“ESSENTIALS $ 35 / month [...] Up to 500 monthly active users [...] PROFESSIONAL $ 240 / month [...] Up to 500 monthly active users”
Read 2026-09-06 · official pricing
- Pricing — Better Auth ↗
“The Better Auth framework is free and open source. Pricing below is for our managed infrastructure. [...] Pro [...] $20 / month Unlimited seats”
Read 2026-09-06 · official 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.
- 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.
Sources (2) →Sources ↓
- Pricing — Auth0 ↗
“HOW MANY MONTHLY ACTIVE USERS? [...] Up to 25,000 monthly active users [...] ESSENTIALS $ 35 / month Up to 500 monthly active users [...] ¹ Upgrade to B2B to continue using EC, Self-Service SSO, and SCIM.”
Read 2026-09-06 · official pricing
- Pricing — Better Auth ↗
“$20 / month [...] 20,000 audit logs / month then $0.0001 per event 10,000 security detections / month then $0.001 per event [...] Transactional email & SMS $0.001 per email, $0.09 per SMS”
Read 2026-09-06 · official 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.
- 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.
Sources (2) →Sources ↓
- Pricing — Auth0 ↗
“Stream Auth0 Audit Logs to Datadog, Splunk, AWS, Azure, etc.”
Read 2026-09-06 · official pricing
- Pricing — Better Auth ↗
“Starter [...] 10,000 audit logs / month 1 day retention [...] Pro [...] 20,000 audit logs / month then $0.0001 per event”
Read 2026-09-06 · official pricing
Which should you choose?
Choose 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.
Editorial · Palash Bagchi · approved
Choose 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.
Editorial · Palash Bagchi · approved
Consider something else if…
- 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.
- 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.
These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing.
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.