Clerk vs Auth0

Clerk vs Auth0

Neither is better for everyone. Clerk suits teams wanting hosted auth components separate from their database. Auth0 suits teams needing a standalone identity provider.

Clerk vs Auth0 at a glance

This page compares Clerk and Auth0 using only what the sources below say about each. Where one is the better pick for a situation, we say which and why.

We read each source on 2026-11-05. Prices and limits change often, so confirm on the vendor's own page before you buy. A figure marked "one source only" was not matched by a second publisher.

When to pick each one

Pick Clerk if it matches your situation

Choose Clerk over Auth0 for teams wanting hosted auth components separate from their database.

Pick Auth0 if it matches your situation

Choose Auth0 over Clerk for teams needing a standalone identity provider.

Limits and things to check

Clerk

• Clerk's updated pricing post (older) announced 10,000 MAUs free and a new Pro plan.^[3] One source only.
• Search summaries describe overage at about $0.02 per additional user above the allowance.^[1]
• 2026 third-party sources describe the free allowance as 50,000 monthly retained users rather than MAUs, conflicting with the 10,000 MAU figure.^[4] One source only.

Auth0

• Auth0's FAQ states that beyond 25,000 users a paid plan is needed.^[2]
• Auth0's pricing page lists custom tiers for Essentials and Professional external active users.^[2]
• G2 lists separate B2B plans at $150 per month (Essentials) and $800 per month (Professional).^[5] One source only.

Pricing as reported

Clerk

Pricing as reported for Clerk:

• Hobby: $0 ^[3] One source only, so confirm it on the vendor page.
• Pro: $25 per month ($20 per month billed annually per one third-party source; overage about $0.02 per additional user) ^[1]

Plan limits are longer than fit here and some sources disagree on them, so read the limits on the vendor pricing page.

Auth0

Pricing as reported for Auth0:

• Free: $0 (Up to 25,000 monthly active users) ^[2]
• Essentials: $35 per month (Most sources say up to 500 MAU; G2 lists up to 5,000 MAU. Disagreement) ^[5] One source only, so confirm it on the vendor page.
• Professional: $240 per month (Most sources say 500 MAU; G2 says up to 1,000 MAU. Disagreement) ^[5] One source only, so confirm it on the vendor page.

Where Continuum fits

We make Continuum Supabase Security Review. Weigh what we say here with that in mind. The tools above are the better choice when you want software you run yourself; ours is the better choice when you want a person to do or read the work.

Continuum Supabase Security Review (ours)

A human review of a Supabase app covering row level security policies, key exposure, storage rules, auth config and service-role usage.^[6]

What our own page says:

• It returns ranked findings with corrected SQL and a proof for each, in 48 hours.^[6]

Limits and things to check:

• It is a manual review of one app, not a continuous monitor.^[6]

Pricing as reported for Continuum Supabase Security Review:

• Supabase Security Review: Quoted on the page (48 hour turnaround) ^[6]

Suits a team running on Supabase that wants a person to read its policies and keys before launch.

Details on Continuum Supabase Security Review.

Running on Supabase?

Straight answers