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Software · head to head

Stytch vs Acunetix

Stytch logo

Stytch

Software

Identity platform with passwordless auth, passkeys and bot detection.

From
Free
Rated
-
Full reviewWebsite
Acunetix logo

Acunetix

Software

Web application security testing made easy

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Stytch has a free tier, so it costs nothing to try first.
  • Each has a real cost: Stytch free tier limited to 10,000 monthly active users; scaling beyond this requires custom pricing negotiation; Acunetix aWS Marketplace lists Acunetix Online Premium, published by seller Invicti Security, at $7,000 per year for 5 targets under a 12 month contract, where a target is one fully qualified domain, website, web app, API or web service

Where they differ

Only the attributes on which Stytch and Acunetix actually diverge.

Attributes where Stytch and Acunetix differ
AttributeStytchAcunetix
Starting priceFreeOn request
Pricing modelfreemiumsubscription
Free tierYesNo
PlatformsWeb, APIDesktop, Web, Api
FoundedUnknown2005

Identical on both: user rating (Not yet rated), category (Unknown).

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 Stytch

Nothing recorded that Acunetix does not also cover.

Only in Acunetix

  • DAST scanning
  • IAST technology
  • AcuSensor
  • JavaScript security
  • SQL injection testing
  • XSS detection
  • OWASP Top 10
  • API security testing

What people use each for

The jobs each tool is most often brought in to do.

Stytch

  • Applications prioritising passwordless and passkey authenticationnot Acunetix
  • SaaS platforms requiring AI agent authentication and machine-to-machine flowsnot Acunetix
  • Companies with emerging identity needs such as bot detection and device intelligencenot Acunetix
  • Organisations building with Next.js and React requiring modern auth patternsnot Acunetix
  • Applications needing transparent pricing without surprise tiers or feature gatingnot Acunetix

Acunetix

  • Vulnerability Scannernot Stytch
  • Web Securitynot Stytch
  • Dastnot Stytch

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Stytch

  • Free tier limited to 10,000 monthly active users; scaling beyond this requires custom pricing negotiation
  • Fraud prevention capabilities billed at $0.005 per fingerprint for usage exceeding 10,000 free checks
  • Additional SSO or SCIM connections beyond the 5 included in free tier cost $125 each
  • Brand customisation and email removal require one-time payment of $99
  • HIPAA and advanced fraud protection only available in Enterprise tier
  • No native UI builder; requires custom frontend development for fully-branded auth flows

Acunetix

  • AWS Marketplace lists Acunetix Online Premium, published by seller Invicti Security, at $7,000 per year for 5 targets under a 12 month contract, where a target is one fully qualified domain, website, web app, API or web service
  • AWS Marketplace's Invicti listing shows Premium Support priced separately at $150,000 per year and Premium Support with Guided Success at $300,000 per year, on top of the base scanning licence

Pricing, plan by plan

Stytch

Free
  • FreeFree
    • 10,000 monthly active users and AI agents
    • Unlimited organisations
    • 5 SSO or SCIM connections
  • Scaled$null/variable
    • Usage-based pricing for users exceeding 10,000
    • All free tier features
    • Volume discounts available
  • Enterprise$null/variable
    • Custom pricing
    • Discounted volume rates
    • Enterprise support SLA

Acunetix

On request
  • StandardFree
    • Single user
    • 5 targets
    • Scheduled scans
  • PremiumFree
    • Multiple users
    • Unlimited targets
    • CI/CD integration
  • Acunetix 360Free
    • Enterprise features
    • SDLC integration
    • Custom workflows

Which should you pick?

Choose Stytch if

  • You want to start without paying.
  • You work on Web, API.
Stytch review

Choose Acunetix if

  • You need dast scanning.
  • You work on Desktop, Web, Api.
  • You also want iast technology.
Acunetix review

Questions people ask

Is Stytch or Acunetix better?
Neither clearly leads. Stytch starts at Free and Acunetix at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stytch or Acunetix?
Stytch has a free tier; the other does not. Paid plans start at Free for Stytch and On request for Acunetix.
Does Stytch or Acunetix run on more platforms?
Stytch runs on Web, API. Acunetix runs on Desktop, Web, Api.
Can I use Stytch for free?
Yes. Stytch has a free tier, so you can try it without paying. Acunetix starts at On request.
What is Stytch best used for?
Stytch is most often used for applications prioritising passwordless and passkey authentication, saas platforms requiring ai agent authentication and machine-to-machine flows, companies with emerging identity needs such as bot detection and device intelligence, organisations building with next.js and react requiring modern auth patterns. Of those, applications prioritising passwordless and passkey authentication and saas platforms requiring ai agent authentication and machine-to-machine flows are not what Acunetix is typically brought in for.
What can Stytch do that Acunetix cannot?
Acunetix covers DAST scanning, IAST technology, AcuSensor, JavaScript security.

Answered from the vendors’ own pages

Stytch: What is included in Stytch's free tier?

The free tier includes 10,000 monthly active users (human and AI agents), unlimited organisations, 5 SSO or SCIM connections, and 1,000 machine-to-machine tokens with full authentication features.

Source
Stytch: Does Stytch support AI agent authentication?

Yes. Stytch provides native AI agent authentication and authorisation, with support for the Model Context Protocol (MCP) for authenticating AI agents accessing external systems.

Source
Stytch: What fraud prevention features does Stytch offer?

Stytch includes bot detection with 99.99% accuracy, device fingerprinting, invisible CAPTCHA, and zero-day device intelligence built into all tiers.

Source
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