Vendor

Clerk

Billing unit: MRU — Monthly Retained User — counted only if the user returns 24+ hours after signup Source: clerk.com/pricing, checked 2026-10-30. Visit Clerk

Answer · Clerk cost by MAU (no SSO)

10k users: $0/mo on Hobby · 50k users: $0/mo on Hobby · 100k users: $1025/mo on Pro.

1k users · no SSO: Hobby at $0/mo ranks #1 of 17.
10k users · 1 SSO: Pro at $25/mo ranks #6 of 14 — $300/yr more than Auth0 Free.
50k users · 5 SSO: Pro at $325/mo ranks #4 of 10 — $3,429/yr more than Supabase Auth Pro (platform).
100k users · 10 SSO: Pro at $1700/mo ranks #8 of 10 — $19,749/yr more than Supabase Auth Pro (platform).

As of 2026-10-30, from 19 verified plan rows. How we calculate this.

Price my exact MAU + SSO Get alerts when prices move (Pro)

Hobby free to 50k MRU/app. Pro $25/mo ($20 annual) with 50k MRU + 1 SSO + 1 Directory Sync. Extra SSO $75 (2–15) then $60 (16–100). Directory Sync billed from 2027-01-01.

Clerk cost at 10k, 50k and 100k users

Plan	10k users	50k users	100k users
Hobby	$0	$0	—
Pro	$25	$25	$1025
Business	$300	$300	$1300

Monthly USD, no SSO, list price. “—” = the vendor publishes no fixed self-serve price for that volume (custom / contact sales) or the plan caps below it.

More on Clerk: Clerk pricing · cheaper Clerk alternatives · vs Auth0 · vs Amazon Cognito · vs WorkOS · vs Stytch · vs Kinde · vs Supabase Auth · vs Logto

Plan	Base	Included	Unit	Overage	SSO	Status	Notes
Hobby	$0	50000	MRU	—	0 incl.	Verified	50k MRU per app. No SSO. No MFA. Fixed 7-day session.
Pro	$25	50000	MRU	$0.0200	1 incl. · +$75	Verified	Monthly $25 or $20 billed annually. 1 SSO + 1 Directory Sync included. Directory Sync billed from 2027-01-01.
Business	$300	50000	MRU	$0.0200	1 incl. · +$75	Verified	SOC2, priority support, advanced Protect. Same MRU/SSO add-on ladder as Pro.

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