Best Auth Identity · head-to-head
Auth0 vs Clerk
A sourced, side-by-side comparison for auth identity. Auth0 has the lower entry price. Every figure links to the vendor's own page and the date we captured it.
Auth0 has the lower entry price — Auth0 starts at $0/mo, Clerk at $0/mo. Free tier: Auth0 Yes, Clerk Yes. HIPAA: Auth0 Yes, Clerk No.
As of 2026-06-14 · figures link to their source below
Side by side
Auth0
$0/mo entryClerk
$0/mo entrySources — Auth0: auth0.com (verified 2026-06-14) · Clerk: clerk.com (verified 2026-06-14)
Key features
Auth0: Universal Login with no-code Forms editor; Adaptive MFA and attack protection; Serverless Actions for identity customization; Machine-to-machine (M2M) auth; Highly Regulated Identity for sensitive industries
Clerk: Drop-in React UI components with full customization; Prebuilt device session management; MRU-based billing (not just MAU — counts returning users); All Pro features available in dev instances before committing; SAML/OIDC enterprise connections on Pro+