Developer Tools · Established
Clerk
Complete user management platform with drop-in UI components, flexible APIs, and admin dashboards for authentication, authorization, and billing.
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DR: Domain Rating by Ahrefs. Checked 4 Oct, changed 3 Oct.
Mission brief
Complete user management platform with drop-in UI components, flexible APIs, and admin dashboards for authentication, authorization, and billing.
Questions from the ground
Is Clerk cheaper than Auth0?
For many SaaS teams that need paid auth features, Clerk is often cheaper and more transparent. Clerk Pro is $20/mo billed annually and includes 50K MRUs plus 1 Enterprise connection, with published overage rates. Auth0's free tier is generous at 25K MAU, but its paid plans start at $35/mo for Essentials and $240/mo for Professional. The gap is clearest for B2B/SSO-heavy apps where Clerk includes one Enterprise connection on Pro with published pricing for additional connections.
What happens when I exceed the first 50,000 monthly retained users or 100 monthly retained organizations?
Once you exceed 50,000 monthly retained users you will be required to upgrade to the Pro plan. Once you exceed 100 monthly retained organizations, you will be required to upgrade to the B2B Authentication add-on. Each user or organization beyond the free tier allowance will be added to your monthly bill. You'll be given a one-month grace period so your application can continue to operate correctly.
Is there a free trial?
All Pro tier features are available to try in the development instance of your application, allowing you to test the full functionality of Clerk without being constrained by a traditional trial period. All features are properly tagged in the Dashboard, so you'll know if a specific feature requires an upgrade to use in production.
What is Monthly Retained Users (MRU) pricing?
Clerk pricing is based on Monthly Retained Users (MRU), not traditional MAU. A user only counts as retained if they return to your app at least 24 hours after signing up. This means someone who signs up and never comes back does not count toward MRU billing, so MRU is often lower than traditional MAU metrics.
Key features
- Social sign-on with 20+ providers
Clerk has a free listing. The owner can unlock the full profile with a paid launch for $5:
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Link metrics
Majestic link data for clerk.com; the arrow is the change since the previous check.
- Trust Flow
- 34
- no change since last check
- Citation Flow
- 55
- no change since last check
- Referring domains
- 9,179
- no change since last check
- External backlinks
- 237,841
- no change since last check
Top topic: Business/Financial Services (32). Checked 3 Oct 2026, changed 3 Oct 2026. Link data by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
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