Cybersecurity · head to head
OWASP ZAP vs Yoti
OWASP ZAP
Cybersecurity
Free, open-source web application scanner and intercepting proxy, now governed by the Software Security Project.
- From
- Free
- Rated
- -
Yoti
Cybersecurity
Reusable digital identity, facial age estimation and identity verification
- From
- On request
- Rated
- -
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.; Yoti age estimation returns a probabilistic range rather than a verified date of birth, so it only works with a safety buffer above the legal threshold and cannot prove an exact age.
- They diverge on capability: OWASP ZAP covers Intercepting proxy, Yoti covers Facial age estimation.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which OWASP ZAP and Yoti actually diverge.
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 Yoti
- Facial age estimation
- Reusable digital ID
- Identity verification
- UK right to work and rent
- Digital ID for retail
- Selective disclosure
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 Yoti
- Manual penetration testing that needs an intercepting proxy, request replay and fuzzing without a paid licence per testernot Yoti
- Teaching developers what an attack against their own endpoint looks like, using a tool they can install themselvesnot Yoti
- Pre-release regression scanning of an internal application that would never justify a commercial DAST subscriptionnot Yoti
Yoti
- A social platform meeting UK Online Safety Act age assurance duties without collecting identity documents from teenagersnot OWASP ZAP
- A supermarket removing staff interventions at self-checkout for age-restricted purchasesnot OWASP ZAP
- A UK employer running digital right-to-work checks under the certified trust framework rather than inspecting passportsnot OWASP ZAP
- A gambling operator needing an age gate with high completion rates before the account funding stepnot 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.
Yoti
- Age estimation returns a probabilistic range rather than a verified date of birth, so it only works with a safety buffer above the legal threshold and cannot prove an exact age.
- Estimation accuracy varies by demographic and reported error margins widen at the age bands that matter most for eighteen-year thresholds, which pushes borderline users into a document fallback you still have to pay for.
- Pricing is not published, so buyers cannot compare the cost of an estimation check against a document check without going through sales.
- Regulatory acceptance of facial estimation differs by jurisdiction, so a method that satisfies Ofcom may not satisfy a regulator elsewhere and multi-market platforms need more than one approach.
- The reusable digital identity app depends on consumer adoption, which is meaningful in the UK and thin elsewhere, limiting the reusability benefit outside its home market.
Pricing, plan by plan
OWASP ZAP
Free- Free & Open SourceFree
- Full functionality
- Active & passive scanning
- Spider
Yoti
On request- Yoti Age and Identity Services$undefined/year
- Per-check pricing quoted by volume and method
- Age estimation, document verification and digital ID priced differently
- Right to work and right to rent checks quoted separately
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.
Choose Yoti if
- You need facial age estimation.
- You work on Web, iOS, Android, API.
- You also want reusable digital id.
Questions people ask
- Is OWASP ZAP or Yoti better?
- Neither clearly leads. OWASP ZAP starts at Free and Yoti at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, OWASP ZAP or Yoti?
- OWASP ZAP has a free tier; the other does not. Paid plans start at Free for OWASP ZAP and On request for Yoti.
- Does OWASP ZAP or Yoti run on more platforms?
- OWASP ZAP runs on Desktop, Cli, Api. Yoti runs on Web, iOS, Android, API.
- Can I use OWASP ZAP for free?
- Yes. OWASP ZAP has a free tier, so you can try it without paying. Yoti starts at On request.
- 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 Yoti is typically brought in for.
- What can OWASP ZAP do that Yoti cannot?
- OWASP ZAP covers Intercepting proxy, Passive scanner, Active scanner, AJAX spider. Yoti covers Facial age estimation, Reusable digital ID, Identity verification, UK right to work and rent.
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.
Yoti: Does age estimation store my face?
The image is used to produce an estimate and then deleted rather than retained, which is the specific property that makes it usable for age assurance on minors.
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.
Yoti: Is it accepted for UK Online Safety Act compliance?
Facial age estimation is one of the methods regulators have accepted as highly effective age assurance. Confirm the current position with your own counsel for your content category.
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.
Yoti: Can it prove someone is exactly 21?
No. It gives a range. If you need a precise age you need a document or database check, which Yoti also sells.
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.
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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- Yoti vs Syft
- Yoti vs Very Good Security
- Yoti vs VIVOTEK VAST Security Station
- Yoti vs Windscribe
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