Auth0 vs Clerk
Default scenario: At 50K monthly active users, no enterprise SSO connections: Auth0 (over self-serve plan limits · contact sales), Clerk $0/yr.
The services may differ in features, performance, support and the work you need to do yourself. Read the notes and test what matters to your setup.
Your selected usage
50K monthly active users, no enterprise SSO connections
- Auth0: Over self-serve plan limits · contact sales
- Clerk: $0/yr estimated
Estimated costs at different usage levels
| Usage | Auth0 | Clerk |
|---|---|---|
| Default scenario50K monthly active users, no enterprise SSO connections | —Over self-serve plan limits · contact sales | $0/yrHobby · $0 MAU + $0 SSO |
| Consumer app500K monthly active users, no enterprise SSO connections | —Over self-serve plan limits · contact sales | $98,700/yrPro (100k-1M MRU) · $7,200 MAU + $0 SSO |
| B2B SaaS20K monthly active users, 25 enterprise SSO connections | $72,000/yrB2B Essentials 20k MAU · $0 MAU + $2,200 SSO | $20,100/yrPro (up to 100k MRU, 16+ SSO) · $0 MAU + $600 SSO |
| Startup5K monthly active users, no enterprise SSO connections | $0/yrFree · $0 MAU + $0 SSO | $0/yrHobby · $0 MAU + $0 SSO |
MFA, custom domains, audit logs and SCIM are paid add-ons on several vendors. Check the notes. Try your own numbers against all authentication providers.
Side by side
| Auth0 | Clerk | |
|---|---|---|
| What it is | Okta-owned customer identity platform with separate B2C and B2B plans, priced in fixed MAU brackets that end at 10k-30k MAU on self-serve. | Developer-focused auth and user management with prebuilt UI components, billed per monthly retained user with enterprise SSO priced per connection. |
| Headquarters | 🇺🇸 United States | 🇺🇸 United States |
| Parent jurisdiction | 🇺🇸 United States (Okta) | 🇺🇸 United States |
| EU self-serve plan | Available; check eligible plans and regions | No / not documented |
| GDPR DPA | Yes | Yes |
| Billing | subscription | subscription |
| Free tier | Free plan up to 25,000 MAU with 1 enterprise connection and 1 custom domain. | Hobby plan with 50,000 monthly retained users, no enterprise SSO or MFA. |
| Open source | No | No |
| Source last checked | 2026-10-06 | 2026-10-06 |
| Pricing evidence | Published rates | Published rates |
Which should you choose?
Both are free wherever both list a self-serve price, from 5K monthly active users, no enterprise SSO connections to 25K monthly active users, no enterprise SSO connections. From about 50K monthly active users, no enterprise SSO connections, Auth0 is over its self-serve plan limits.
Choose Auth0 if…
- you need EU data residency on a self-serve plan
Choose Clerk if…
- it has the lower estimated bill at B2B SaaS usage
Based on estimated list-price bills and the facts above. Features, performance and support aren’t scored.
Auth0 pricing
Calculated from the listed vendor rates; exclusions still apply.
| Plan | Base fee / month | Enterprise connection / month |
|---|---|---|
| Free | $0 | $0 |
| B2C Essentials 500 MAU | $35 | $0 |
| B2C Essentials 1k MAU | $70 | $0 |
| B2C Essentials 2.5k MAU | $175 | $0 |
| B2C Essentials 5k MAU | $350 | $0 |
| B2C Essentials 7.5k MAU | $525 | $0 |
| B2C Essentials 10k MAU | $700 | $0 |
| B2C Essentials 20k MAU | $1,400 | $0 |
| B2C Essentials 30k MAU | $2,100 | $0 |
| B2B Essentials 500 MAU | $150 | $100 |
| B2B Essentials 1k MAU | $300 | $100 |
| B2B Essentials 2.5k MAU | $700 | $100 |
| B2B Essentials 5k MAU | $1,300 | $100 |
| B2B Essentials 7.5k MAU | $1,725 | $100 |
| B2B Essentials 10k MAU | $2,100 | $100 |
| B2B Essentials 20k MAU | $3,800 | $100 |
| B2B Professional 1k MAU | $800 | $100 |
| B2B Professional 2.5k MAU | $1,200 | $100 |
| B2B Professional 5k MAU | $1,500 | $100 |
| B2B Professional 7.5k MAU | $1,800 | $100 |
| B2B Professional 10k MAU | $2,400 | $100 |
Monthly list prices; annual billing costs 11x the monthly price. Self-serve plans are sold in fixed MAU brackets with no per-MAU overage, and stop at 30k MAU (B2C Essentials), 20k (B2C Professional, B2B Essentials) and 10k (B2B Professional); above that it is an Enterprise contract. B2C plans include no enterprise (SAML/OIDC) connections. B2B Essentials includes 3 and B2B Professional 5, with extra connections at $100/month each up to 30 in total. B2C Professional (from $240 for 1k MAU to $3,200 for 20k) is always pricier than B2C Essentials and is left out of the calculator. Enterprise MFA is a $100/month add-on on Essentials and included on Professional. M2M token packs are extra. Tenants can be created in the EU region on every plan. Okta, Inc. (US) signs a DPA.
Auth0 plan limits, full rates and cheaper alternatives · official pricing page
Clerk pricing
Calculated from the listed vendor rates; exclusions still apply.
| Plan | Base fee / month | 1k additional active users | Enterprise connection / month |
|---|---|---|---|
| Hobby | $0 | $0 | $0 |
| Pro (up to 100k MRU) | $25 | $20 | $75 |
| Pro (100k-1M MRU) | $1,025 | $18 | $75 |
| Pro (1M-10M MRU) | $17,225 | $15 | $75 |
| Pro (up to 100k MRU, 16+ SSO) | $1,075 | $20 | $60 |
| Pro (100k-1M MRU, 16+ SSO) | $2,075 | $18 | $60 |
| Pro (1M-10M MRU, 16+ SSO) | $18,275 | $15 | $60 |
Pro is $25/month ($20 billed annually) with 50,000 monthly retained users (MRU) included; a user only counts if they come back at least a day after signing up. Graduated MRU overage of $0.02 (50k-100k), $0.018 (100k-1M), $0.015 (1M-10M) and $0.012 above 10M; the volume bands are modelled as separate plans with the lower bands folded into plan_month. Enterprise SSO: 1 connection per app included on Pro and Business, then $75/month each for connections 2-15 and $60 for 16-100 (also folded into the 16+ plans). Business ($300/month, $250 annually) adds SOC 2 report, priority support and 10 seats at the same usage prices, so it is never cheaper. Add-ons: Enhanced B2B Authentication and Enhanced Administration at $100/month each ($85 annually). MFA is included from Pro. Data is hosted in the US only; transfers rely on the EU-US Data Privacy Framework and a DPA.
Clerk plan limits, full rates and cheaper alternatives · official pricing page
Frequently asked questions
Is Auth0 cheaper than Clerk?
Both are free wherever both list a self-serve price, from 5K monthly active users, no enterprise SSO connections to 25K monthly active users, no enterprise SSO connections. From about 50K monthly active users, no enterprise SSO connections, Auth0 is over its self-serve plan limits. Estimates use list prices and leave out features, support and operating costs.
Do Auth0 and Clerk offer EU data residency?
Auth0 offers EU data residency on a self-serve plan. Clerk doesn’t document it on a self-serve plan.
Do Auth0 and Clerk have a free tier or trial?
Auth0: Free plan up to 25,000 MAU with 1 enterprise connection and 1 custom domain. Clerk: Hobby plan with 50,000 monthly retained users, no enterprise SSO or MFA.
Where are Auth0 and Clerk based?
Auth0 is headquartered in the United States and owned by Okta (the United States). Clerk is headquartered in the United States.