Auth0 vs Clerk pricing
Both are in authentication & identity apis. Auth0 is billed mau-based; Clerk is billed mau-based. Numbers below are copied from each vendor's pricing page.
Auth0Free tier or trial
- Free tier
- 25k MAU (free plan)
- Billed
- MAU-based
- Best for
- Full-featured CIAM for B2C and B2B
- Verified
- Jun 27, 2026
ClerkFree tier or trial
- Free tier
- 50k MAU (monthly retained users)
- Billed
- MAU-based
- Best for
- Embeddable auth UI for React/Next.js
- Verified
- Jun 27, 2026
Auth0 plans
| Plan | Price | What it covers |
|---|---|---|
| Free | $0 | Up to 25,000 MAU (B2C) / 500 MAU (B2B); includes social connections, basic MFA, and community support. |
| B2C Essentials | from $35-$70/mo (500 MAU) | Adds passwordless, MFA, role-based access; entry price for B2C scaled to MAU (raised toward $70/mo in late 2025). |
| B2B Essentials | from $150/mo (500 MAU) | Organizations support (unlimited orgs), B2B-oriented features, scaled by MAU. |
| B2C Professional | from $240/mo (1,000 MAU) | Adds external user databases, more MFA options (phone/email/WebAuthn/Guardian push), enhanced attack protection, longer log retention. |
| B2B Professional | from $800/mo (1,000 MAU) | Professional feature set for B2B with organizations and advanced protection, scaled by MAU. |
| Enterprise | Custom | Custom user/SSO tiers, 99.99% SLA, enterprise rate limits, advanced admin/support, private cloud options. |
- MAU-based pricing with hard caps gets expensive fast at scale; widely called a startup 'growth penalty'
- Post-Okta pricing changes seen as steep and unpredictable (reports of large bill jumps and a B2C Essentials hike)
- B2B-critical features (enterprise SSO connections, higher rate limits, custom SLA, private cloud) gated behind custom Enterprise pricing
Source: https://auth0.com/pricing
Clerk plans
| Plan | Price | What it covers |
|---|---|---|
| Hobby (Free) | $0/mo | Free tier; first 50,000 monthly retained users (MRUs) included free in every app. |
| Pro | $25/mo ($20/mo annual) | 50,000 MRUs included; overage $0.02/MRU (50k-100k), dropping to $0.018, $0.015, $0.012 at higher tiers. |
| Business | $300/mo ($250/mo annual) | Higher-tier plan for scaling teams; 50,000 MRUs included with same tiered overage pricing. |
| Enterprise | Custom (annual only) | Volume MAU discounts, negotiated rates, enterprise SLAs and support. |
| B2B Authentication add-on | $100/mo ($85/mo annual) | Unlimited organization members, custom roles, enterprise connection linking, verified domains. |
| Administration / Billing add-ons | $100/mo admin · 0.7% of billing volume | Unlimited user impersonations (base = 5/mo); Billing add-on charges 0.7% of subscription volume. |
- Security-adjacent and B2B features (org management, unlimited impersonation, admin) gated behind $100/mo add-ons
- Costs can climb fast at scale once past the free MRU allotment for large user bases
Source: https://clerk.com/pricing