Pick Auth0 if
app teams who will stay on Free at $0 (25,000 MAU) while they open a first Users list, then buy B2C Essentials at $35 / month (500 MAU) or B2C Professional at $240 / month.
Read the Auth0 pageAuth0 vs Clerk
Our take
Pick Auth0 if app teams who will stay on Free at $0 (25,000 MAU) while they open a first Users list, then buy B2C Essentials at $35 / month (500 MAU) or B2C Professional at $240 / month. Pick Clerk if next.js / SaaS teams who will stay on Hobby at $0 (50,000 MRUs, 3 seats) while they ship a first Sign-in, then buy Pro at $20/month billed yearly ($25 monthly) when they need MFA, passkeys, and branding removed.
Clerk
hosted auth-component desk
Best for
Auth0 Identities you triage at $0
Clerk Sign-in you start at $0
Free plan
Auth0 $0 · / month. Up to 25,000 MAU. 1 custom domain. 5 Organizations. 1 Enterprise Connection. Passwordless. Community support. No card
Clerk $0 · no card. 50,000 MRUs / app. 3 dashboard seats. Unlimited applications. Custom domain. Session 7 days. Logs 1 day. API keys: 1,000 creations / 100,000 verifications. M2M: 2,500 / 100,000. Up to 5 impersonations. Up to 3 social connections
Lowest paid
Auth0 B2C Essentials $35
Clerk Pro $25/mo
Next step up
Auth0 B2B Essentials from $150
Clerk B2B Enhanced add-on $100/mo
Runs where
Auth0 Hosted
Clerk Local or hosted
Watch out
Auth0 Free caps at 25,000 MAU
Clerk Hobby MFA / passkeys / no-branding are Pro
Last checked
Auth0 2026-10-23 · auth0.com/pricing
Clerk 2026-10-23 · clerk.com/pricing
Which one, then?
Pick Clerk if
next.js / SaaS teams who will stay on Hobby at $0 (50,000 MRUs, 3 seats) while they ship a first Sign-in, then buy Pro at $20/month billed yearly ($25 monthly) when they need MFA, passkeys, and branding removed.
Read the Clerk page