Identity & Access Management · head to head
Clerk vs Unleash

Clerk
Identity & Access Management
Drop-in user authentication and management for developers
- From
- Free
- Rated
- -

Unleash
Software Development
Open-source feature flag and experimentation service
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Clerk pricing scales with monthly retained users, which can grow expensive quickly for consumer apps with large user bases.; Unleash the Pay-As-You-Go plan is priced per seat, which can get costly for larger teams.
- They diverge on capability: Clerk covers Prebuilt UI components, Unleash covers Feature flags.
Where they differ
Only the attributes on which Clerk and Unleash actually diverge.
Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Clerk
- Prebuilt UI components
- Organization management
- Multi-factor authentication
- Social sign-on
- Billing
- Enterprise connections
Only in Unleash
- Feature flags
- A/B/n testing
- Custom targeting
- SDKs
- SSO
- Audit logs
What people use each for
The jobs each tool is most often brought in to do.
Clerk
- Adding sign-in and user profiles to a web or mobile app quicklynot Unleash
- B2B SaaS apps needing organizations and role-based accessnot Unleash
- Startups wanting prebuilt UI instead of building auth in-housenot Unleash
- Apps needing MFA and fraud detection out of the boxnot Unleash
Unleash
- Gradual and progressive feature rolloutsnot Clerk
- Running A/B/n experiments tied to flagsnot Clerk
- Self-hosting feature management for compliance needsnot Clerk
- Enterprise SSO-controlled feature flag governancenot Clerk
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Clerk
- Pricing scales with monthly retained users, which can grow expensive quickly for consumer apps with large user bases.
- Enterprise SSO connections beyond the first are billed as add-ons, adding cost for larger organizations.
- The Business tier's extra dashboard seats cost $20/month each, which adds up for larger teams.
- Enterprise-tier features like the 99.99% uptime SLA require annual contracts rather than flexible monthly billing.
Unleash
- The Pay-As-You-Go plan is priced per seat, which can get costly for larger teams.
- Self-hosted Enterprise requires a minimum of 5 seats and an annual contract.
- Additional API traffic beyond the included quota is billed per million requests.
- Advanced SLAs and dedicated customer success are reserved for the custom Enterprise tier.
Pricing, plan by plan
Clerk
Free- HobbyFree
- 50,000 MRU limit per app
- Up to 3 dashboard seats
- Unlimited applications
- Pro$25/month
- 50,000 MRUs included, $0.02/MRU overage
- Up to 3 dashboard seats
- 1 Enterprise Connection included
- Business$300/month
- 50,000 MRUs included with volume pricing
- 10 dashboard seats included
- SOC2 report and priority support
- Enterprise$undefined/month
- Custom pricing, annual billing
- 99.99% uptime SLA
- HIPAA available, dedicated Slack channel
Unleash
Free- Pay-As-You-Go$75/month
- Cloud-hosted
- 53M API requests/month included
- Unlimited feature flags, projects and environments
- Custom Enterprise$undefined/mo
- Cloud, self-hosted or hybrid
- Premium support options
- 99.99% uptime SLA
Which should you pick?
Choose Clerk if
- You need prebuilt ui components.
- You want to start without paying.
- You work on web, ios, android, api.
- You also want organization management.
Choose Unleash if
- You need feature flags.
- You want to start without paying.
- You work on web, api, linux.
- You also want a/b/n testing.
Questions people ask
- Is Clerk or Unleash better?
- Neither clearly leads. Clerk starts at Free and Unleash at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Clerk or Unleash?
- Clerk starts at Free and Unleash at Free.
- Does Clerk or Unleash run on more platforms?
- Clerk runs on web, ios, android, api. Unleash runs on web, api, linux.
- Can I use Clerk for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Clerk best used for?
- Clerk is most often used for adding sign-in and user profiles to a web or mobile app quickly, b2b saas apps needing organizations and role-based access, startups wanting prebuilt ui instead of building auth in-house, apps needing mfa and fraud detection out of the box. Of those, adding sign-in and user profiles to a web or mobile app quickly and b2b saas apps needing organizations and role-based access are not what Unleash is typically brought in for.
- What can Clerk do that Unleash cannot?
- Clerk covers Prebuilt UI components, Organization management, Multi-factor authentication, Social sign-on. Unleash covers Feature flags, A/B/n testing, Custom targeting, SDKs.
Answered from the vendors’ own pages
Clerk: What does Clerk cost?
Clerk's Hobby plan is free with a 50,000 MRU limit; Pro is $25/month ($20/month billed annually), Business is $300/month ($250 annually), and Enterprise uses custom annual pricing.
SourceUnleash: What does Unleash cost?
Unleash offers a Pay-As-You-Go cloud plan at $75/seat/month with a 14-day free trial, plus a custom-priced Enterprise plan for self-hosted or hybrid deployments.
SourceClerk: Is there a free plan and what are its limits?
Yes, the Hobby plan is free with a 50,000 monthly retained user (MRU) limit per app, up to 3 dashboard seats, and unlimited applications, with no credit card required.
SourceUnleash: How is usage metered?
The Pay-As-You-Go plan includes 53M API requests per month, with additional traffic billed at $5 per million requests thereafter.
SourceClerk: How is usage metered?
Clerk meters by monthly retained users (MRUs) — users who return to the app at least a day after signing up — with overage billed at $0.02 per MRU beyond the included 50,000 on paid plans.
SourceUnleash: What does Unleash integrate with, and is there an API?
Unleash provides an API and 25+ official SDKs across languages, along with SSO integrations via SAML 2.0 and OpenID Connect.
SourceRelated pages
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