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Cybersecurity · head to head

Acunetix vs Spacelift

Acunetix logo

Acunetix

Cybersecurity

Web application security testing made easy

From
On request
Free plan
No
Full reviewWebsite
Spacelift logo

Spacelift

Developer Tools

Infrastructure-as-code orchestration for Terraform, OpenTofu, Pulumi and Kubernetes

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Spacelift has a free tier, so it costs nothing to try first.
  • Each has a real cost: Acunetix pricing available by quote only; no transparent pricing published online; Spacelift users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.
  • They diverge on capability: Acunetix covers DAST scanning, Spacelift covers Multi-tool orchestration.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Acunetix and Spacelift actually diverge.

Attributes where Acunetix and Spacelift differ
AttributeAcunetixSpacelift
Starting priceOn requestFree
Pricing modelsubscriptionBy private worker and tier, not by user
Free tierNoYes
PlatformsDesktop, Web, ApiWeb, Self-hosted, Cloud
CategoryCybersecurityDeveloper Tools
Founded2005Unknown

Identical on both: 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 Acunetix

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

Only in Spacelift

  • Multi-tool orchestration
  • Policy as code
  • Private workers
  • Spaces
  • Blueprints
  • Drift detection

What people use each for

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

Acunetix

  • Scanning web applications for security vulnerabilitiesnot Spacelift
  • Testing APIs for exploitable weaknesses and threatsnot Spacelift
  • Automating dynamic application security testing (DAST)not Spacelift
  • Finding and validating security issues in production environmentsnot Spacelift

Spacelift

  • Platform teams running infrastructure changes through approval gates rather than through application CInot Acunetix
  • Organisations standardising Terraform and OpenTofu across many teams with policy enforcementnot Acunetix
  • Estates needing private runners so cloud credentials never leave the networknot Acunetix
  • Teams wanting drift detection and reconciliation rather than plan-time checks alonenot Acunetix

Where each one falls short

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

Acunetix

  • Pricing available by quote only; no transparent pricing published online
  • Requires per-application licenses for comprehensive coverage
  • Scanning speed and feature depth depend on subscription tier
  • Advanced features like API security testing may require higher-tier plans

Spacelift

  • Users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.
  • There is no affordable paid entry point. The free tier stops at two users and the next tier is a five-figure commitment with nothing in between.
  • Three of the five tiers are quote-only, so a shortlist cannot be costed without entering a sales process with each vendor on it.
  • The self-hosted build lags the hosted one, has no public worker pool and lacks the Azure and Google Cloud integrations available in the SaaS product, with OIDC federation offered as the workaround.
  • Stacks, Rego policies, Blueprints, Spaces and Spacelift-managed state are proprietary constructs, so leaving means rebuilding the orchestration layer rather than pointing it at a different runner.

Pricing, plan by plan

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

Spacelift

Free
  • FreeFree
    • Two users
    • Public workers only
    • No private workers
  • Starter Plus$undefined/year
    • Unlimited users
    • Two public workers
    • One to two private workers
  • Business$undefined/year
    • Unlimited users
    • Three private workers
    • Quoted
  • Enterprise$undefined/year
    • Unlimited users
    • Five to thirty private workers
    • Self-hosted option

Which should you pick?

Choose Acunetix if

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

Choose Spacelift if

  • You need multi-tool orchestration.
  • You want to start without paying.
  • You work on Web, Self-hosted, Cloud.
  • You also want policy as code.
Spacelift review

Questions people ask

Is Acunetix or Spacelift better?
Neither clearly leads. Acunetix starts at On request and Spacelift at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Acunetix or Spacelift?
Spacelift has a free tier; the other does not. Paid plans start at On request for Acunetix and Free for Spacelift.
Does Acunetix or Spacelift run on more platforms?
Acunetix runs on Desktop, Web, Api. Spacelift runs on Web, Self-hosted, Cloud.
Can I use Spacelift for free?
Yes. Spacelift has a free tier, so you can try it without paying. Acunetix starts at On request.
What is Acunetix best used for?
Acunetix is most often used for scanning web applications for security vulnerabilities, testing apis for exploitable weaknesses and threats, automating dynamic application security testing (dast), finding and validating security issues in production environments. Of those, scanning web applications for security vulnerabilities and testing apis for exploitable weaknesses and threats are not what Spacelift is typically brought in for.
What can Acunetix do that Spacelift cannot?
Acunetix covers DAST scanning, IAST technology, AcuSensor, JavaScript security. Spacelift covers Multi-tool orchestration, Policy as code, Private workers, Spaces.

Answered from the vendors’ own pages

Acunetix: How much does Invicti (formerly Acunetix) cost?

Invicti pricing is available by quote based on your organization's needs, application count, and required features. The platform offers 8x faster scanning compared to competitors and detects 99.98% of exploitable vulnerabilities. Contact Invicti sales for a custom pricing proposal.

Source
Spacelift: How is Spacelift priced?

By tier and by private worker count rather than per user. Users are unlimited on every paid plan. The published figure on the pricing page carries no period label, and the FAQ describes the tier as an annual subscription, so confirm the period in writing.

Spacelift: Does it support OpenTofu?

Yes, and Spacelift sponsors the OpenTofu project, which is a substantive hedge for anyone avoiding Terraform under the Business Source Licence.

Spacelift: Is there a self-hosted version?

Yes, described as carrying Enterprise functionality, but it is priced on request and lags the hosted product on cloud integrations.

Spacelift: Why not just use the CI system we already have?

That is the real comparison. General purpose CI handles state, drift, approval gates and concurrency control for infrastructure poorly, and whether that is worth a five-figure floor depends on how much infrastructure change your organisation actually ships.

Spacelift: What happens to our pipelines if we leave?

They do not port. Rego policies, Blueprints, Spaces and managed state are Spacelift constructs and the orchestration has to be rebuilt elsewhere.

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