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Cybersecurity · head to head

OWASP ZAP vs Rapid7 InsightVM

OWASP ZAP logo

OWASP ZAP

Cybersecurity

Free, open-source web application scanner and intercepting proxy, now governed by the Software Security Project.

From
Free
Rated
-
Full reviewWebsite
Rapid7 InsightVM logo

Rapid7 InsightVM

Cybersecurity

Vulnerability management at scale

From
$1.62/month
Rated
-
Full reviewWebsite

The short version

  • Only OWASP ZAP has a free tier, so it costs nothing to try first.
  • Each has a real cost: OWASP ZAP authenticated scanning of modern single-page applications is the hard part and ZAP makes you build it by hand: session handling, token refresh and login scripts are configured per application, and a misconfigured session means the scanner logs itself out and reports a clean result for pages it never reached.; Rapid7 InsightVM insightVM is now sold inside Exposure Command rather than as a standalone product
  • They diverge on capability: OWASP ZAP covers Intercepting proxy, Rapid7 InsightVM covers Asset discovery.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which OWASP ZAP and Rapid7 InsightVM actually diverge.

Attributes where OWASP ZAP and Rapid7 InsightVM differ
AttributeOWASP ZAPRapid7 InsightVM
Starting priceFree$1.62/month
Pricing modelfreeusage-based
Free tierYesNo
PlatformsDesktop, Cli, ApiWeb, Cloud, Api
Founded20012000

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

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 OWASP ZAP

  • Intercepting proxy
  • Passive scanner
  • Active scanner
  • AJAX spider
  • Automation Framework
  • Headless daemon and REST API
  • Docker images
  • Add-on marketplace

Only in Rapid7 InsightVM

  • Asset discovery
  • Vulnerability scanning
  • Risk prioritization
  • Threat intelligence
  • Custom policies
  • Remediation tracking
  • Compliance reporting
  • API access

What people use each for

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

OWASP ZAP

  • Adding a baseline security scan to every application's pipeline where per-target commercial licensing would limit coverage to a handfulnot Rapid7 InsightVM
  • Manual penetration testing that needs an intercepting proxy, request replay and fuzzing without a paid licence per testernot Rapid7 InsightVM
  • Teaching developers what an attack against their own endpoint looks like, using a tool they can install themselvesnot Rapid7 InsightVM
  • Pre-release regression scanning of an internal application that would never justify a commercial DAST subscriptionnot Rapid7 InsightVM

Rapid7 InsightVM

  • Vulnerability management and risk assessmentnot OWASP ZAP
  • Web application security scanningnot OWASP ZAP
  • Cloud infrastructure security monitoringnot OWASP ZAP

Where each one falls short

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

OWASP ZAP

  • Authenticated scanning of modern single-page applications is the hard part and ZAP makes you build it by hand: session handling, token refresh and login scripts are configured per application, and a misconfigured session means the scanner logs itself out and reports a clean result for pages it never reached.
  • There is no support contract in the product, so when a scan breaks the day before a release the escalation path is a GitHub issue and a community chat, which is not an answer that satisfies a delivery manager or an auditor who wants a named responsible party.
  • Active scanning sends genuine attack traffic, so it can create records, trigger emails, exhaust rate limits or destabilise a fragile environment, and pointing it at production without prior agreement produces an incident rather than a test result.
  • Output needs triage: passive rules generate large volumes of low-severity informational findings about headers and cookie flags that bury the few results that matter, and a team without someone tuning the rule set stops reading the report within a few sprints.
  • As a dynamic scanner it can only test what it can reach, so authorisation flaws between accounts, business logic abuse and anything behind an undiscovered endpoint go unreported, and a passing ZAP scan is evidence of nothing more than the absence of the classes of bug it looks for.

Rapid7 InsightVM

  • InsightVM is now sold inside Exposure Command rather than as a standalone product
  • Rapid7 states pricing is not publicly listed and is provided by custom quote based on the customer's environment
  • Billing counts billable assets including devices, software, identities, cloud compute instances and applications, so the asset count grows faster than a device inventory suggests
  • Cloud security, compliance, infrastructure as code scanning and application security testing require the Ultimate package rather than Essentials
  • Volume discounts are described as commonly available for larger asset counts, so smaller buyers pay the higher unit rate

Pricing, plan by plan

OWASP ZAP

Free
  • Free & Open SourceFree
    • Full functionality
    • Active & passive scanning
    • Spider

Rapid7 InsightVM

$1.62/month
  • InsightVM$1.62/month per asset
    • Vulnerability risk management
    • Unlimited user accounts
    • 24/7 technical support
  • InsightAppSec$175/month
    • Web application security
    • Per application pricing
    • Unlimited user accounts
  • InsightCloudsec$5775/month
    • Cloud security
    • Up to 500 instances
    • Unlimited user accounts

Which should you pick?

Choose OWASP ZAP if

  • You need intercepting proxy.
  • You want to start without paying.
  • You work on Desktop, Cli, Api.
  • You also want passive scanner.
OWASP ZAP review

Choose Rapid7 InsightVM if

  • You need asset discovery.
  • You work on Web, Cloud, Api.
  • You also want vulnerability scanning.
Rapid7 InsightVM review

Questions people ask

Is OWASP ZAP or Rapid7 InsightVM better?
Neither clearly leads. OWASP ZAP starts at Free and Rapid7 InsightVM at $1.62/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OWASP ZAP or Rapid7 InsightVM?
OWASP ZAP has a free tier; the other does not. Paid plans start at Free for OWASP ZAP and $1.62/month for Rapid7 InsightVM.
Does OWASP ZAP or Rapid7 InsightVM run on more platforms?
OWASP ZAP runs on Desktop, Cli, Api. Rapid7 InsightVM runs on Web, Cloud, Api.
Can I use OWASP ZAP for free?
Yes. OWASP ZAP has a free tier, so you can try it without paying. Rapid7 InsightVM starts at $1.62/month.
What is OWASP ZAP best used for?
OWASP ZAP is most often used for adding a baseline security scan to every application's pipeline where per-target commercial licensing would limit coverage to a handful, manual penetration testing that needs an intercepting proxy, request replay and fuzzing without a paid licence per tester, teaching developers what an attack against their own endpoint looks like, using a tool they can install themselves, pre-release regression scanning of an internal application that would never justify a commercial dast subscription. Of those, adding a baseline security scan to every application's pipeline where per-target commercial licensing would limit coverage to a handful and manual penetration testing that needs an intercepting proxy, request replay and fuzzing without a paid licence per tester are not what Rapid7 InsightVM is typically brought in for.
What can OWASP ZAP do that Rapid7 InsightVM cannot?
OWASP ZAP covers Intercepting proxy, Passive scanner, Active scanner, AJAX spider. Rapid7 InsightVM covers Asset discovery, Vulnerability scanning, Risk prioritization, Threat intelligence.

Answered from the vendors’ own pages

OWASP ZAP: Is it still called OWASP ZAP?

The project left OWASP in August 2024 and is now governed by the Software Security Project, with core development sponsored by Checkmarx. The tool is now just ZAP, though most existing documentation, courses and search results still use the OWASP name.

Rapid7 InsightVM: What is the starting price for Rapid7 InsightVM?

InsightVM starts at $1.62 per month per asset, with example pricing provided for 500-asset deployments.

Source
OWASP ZAP: Is it free for commercial use?

Yes. It is Apache 2.0 licensed, with no per-application, per-scan or per-user cost, and it can be used and modified commercially without a licence agreement.

Rapid7 InsightVM: How much does InsightAppSec cost?

InsightAppSec starts at $175 per month per application for web application security scanning.

Source
OWASP ZAP: Can it replace a penetration test?

No. It automates checks for known vulnerability classes against endpoints it can reach. It does not reason about business logic, chain findings into an attack, or test authorisation between accounts, which is most of what a tester actually does.

Rapid7 InsightVM: What does InsightCloudsec cover?

InsightCloudsec starts at $5,775 per month for cloud security monitoring of up to 500 instances.

Source
OWASP ZAP: Does it run in CI?

Yes, through the official Docker images and the Automation Framework, which defines scan jobs in YAML so configuration lives in the repository. A baseline passive scan is the usual starting point because it is fast and non-intrusive.

Rapid7 InsightVM: Do Rapid7 products include unlimited user accounts?

Yes, all Rapid7 products include unlimited user accounts, 24/7 technical support, single sign-on, and customer-success team access.

Source
OWASP ZAP: How does it compare to Burp Suite?

Burp Suite Professional is the more polished manual testing tool and has a stronger scanner and extension ecosystem, but it is licensed per tester and Burp Suite Enterprise per target. ZAP is the better fit where cost per target is the binding constraint; many teams use both.

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