Moving from WorkOS AuthKit to Auth0
A cost comparison and planning checklist. These are assessment steps, not vendor-specific migration instructions.
WorkOS AuthKit
Consumer authentication with a large free active-user allowance.
$0 / month
AuthKit
Official pricing · Checked 2026-10-05
Cost breakdown and exclusions
- Monthly subscription: $0
- Additional active-user blocks (1,000,000 included): $0
- First 1 million monthly active users included. Additional capacity is sold per million users. Custom domain costs extra.
- SMS, enterprise SSO, directory synchronization, custom domains, custom email delivery and optional security add-ons.
Auth0
Enterprise-grade identity and access management with extensive integrations.
$665.00 / month
B2C Essentials
Official pricing · Checked 2026-10-05
Cost breakdown and exclusions
- Monthly subscription: $35.00
- Additional active users (1,000 included): $630.00
- Includes 1,000 monthly active users, custom domains, and MFA. B2B enterprise federation sold separately.
- Enterprise SLA, external database migration scripts, and dedicated tenant isolation.
Recurring cost difference
$7,980.00 higher over twelve months at unchanged usage.
Not calculated. Estimate migration labor, overlapping subscriptions, transfer charges and contract obligations before dividing those costs by any monthly savings.
What this comparison covers
Consumer email/social authentication for one application. No SMS, enterprise SSO, directory sync, custom email delivery or advanced security add-ons. Clerk bills retained users, not all active users. Enter that ratio explicitly.
Evaluating 2 products from 4 published in this category. USD monthly equivalents, before tax. Features and service compatibility need separate evaluation.
- Monthly active users
- 10,000 users / month
- Returning after the first day
- 60 % of active users
Before you move
- This is a readiness assessment, not a verified vendor migration procedure.
- Use the source pricing and plan documentation: https://workos.com/pricing
- Use the target pricing and plan documentation: https://auth0.com/pricing
- Obtain the account permissions, data-owner approvals and tested backups needed for your chosen transfer method.
Modeled recurring cost
WorkOS AuthKit: $0/month
Auth0: $665.00/month
WorkOS AuthKit costs $665.00 less per month than Auth0 at this workload. This compares modeled charges, not overall product quality.
Requirements
AuthKit
B2C Essentials
Check whether identities, password hashes, sessions, organization memberships and sign-in methods can be transferred; do not assume existing sessions survive.
Your migration readiness checklist
Check items as you review them. Progress is kept only while this page is open.
Questions before you decide
Does a lower monthly estimate mean the migration pays for itself?
Not calculated. Estimate migration labor, overlapping subscriptions, transfer charges and contract obligations before dividing those costs by any monthly savings.
Is this a guaranteed migration procedure?
No. This assessment identifies decisions to verify with official provider documentation. It does not establish interoperability, data portability, zero downtime or a rollback guarantee.