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Cybersecurity · head to head

Clerk vs Harness

Clerk logo

Clerk

Cybersecurity

Drop-in user authentication and management for developers

From
Free
Free plan
Yes
Full reviewWebsite
Harness logo

Harness

Developer Tools

Software delivery platform across CI, CD, security testing and cost management

From
Free
Free plan
Yes
Full reviewWebsite

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.; Harness essentials and Enterprise pricing requires sales contact; no published rates
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Clerk and Harness actually diverge.

Attributes where Clerk and Harness differ
AttributeClerkHarness
Platformsweb, ios, android, apiWeb
CategoryCybersecurityDeveloper Tools

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 Harness

Nothing recorded that Clerk does not also cover.

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 Harness
  • B2B SaaS apps needing organizations and role-based accessnot Harness
  • Startups wanting prebuilt UI instead of building auth in-housenot Harness
  • Apps needing MFA and fraud detection out of the boxnot Harness

Harness

  • Deploying apps to AWS, Azure, and Google Cloud with rollbacksnot Clerk
  • Integrating security scanners throughout build pipelines before productionnot Clerk
  • Automating cloud cost reduction and tracking unit-level expensesnot Clerk
  • Enabling developers to provision infrastructure without operations bottlenecksnot Clerk
  • Assessing deployment frequency and lead time productivity metricsnot 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.

Harness

  • Essentials and Enterprise pricing requires sales contact; no published rates
  • DevOps Essentials has no on-premises deployment option
  • Internal Developer Portal requires minimum 20 developer licenses
  • Pipeline execution history retention 6 months (Essentials) vs 25 months as add-on (Enterprise)

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

Harness

Free
  • FreeFree
    • Starter platform for software delivery lifecycle
    • Open source options available (Harness Open Source, Litmus Chaos)
  • Essentials$null/month
    • Growing organizations with small to mid-size teams
    • Packaged DevOps Essentials bundle
    • Continuous software delivery capabilities
  • Enterprise$null/month
    • Large-scale organizations
    • Pick any modules based on needs
    • Advanced features

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.
Clerk review

Choose Harness if

  • You want to start without paying.
Harness review

Questions people ask

Is Clerk or Harness better?
Neither clearly leads. Clerk starts at Free and Harness at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Clerk or Harness?
Clerk starts at Free and Harness at Free.
Does Clerk or Harness run on more platforms?
Clerk runs on web, ios, android, api. Harness runs on Web.
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 Harness is typically brought in for.
What can Clerk do that Harness cannot?
Clerk covers Prebuilt UI components, Organization management, Multi-factor authentication, Social sign-on.

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.

Source
Harness: Is there a free Harness plan?

Yes, Harness offers a free plan for individual developers and small teams with open source options including Harness Open Source and Litmus Chaos.

Source
Clerk: 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.

Source
Harness: What are Harness's paid pricing tiers?

Harness offers Essentials for growing teams and Enterprise for large-scale organizations. Both require contacting sales for custom pricing. Pricing is based on modules and features selected.

Source
Clerk: 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.

Source
Harness: Can Harness be deployed on-premises?

Enterprise plans include self-managed platform deployment option. DevOps Essentials bundle does not offer on-premises deployment.

Source
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