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Government · head to head

Citizen vs OWASP ZAP

Citizen logo

Citizen

Government

Real-time Safety Alerts

From
Free
Free plan
Yes
Full reviewWebsite
OWASP ZAP logo

OWASP ZAP

Cybersecurity

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

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Citizen no premium or paid features mentioned; 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.
  • They diverge on capability: Citizen covers Real-time Alerts, OWASP ZAP covers Intercepting proxy.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Citizen and OWASP ZAP actually diverge.

Attributes where Citizen and OWASP ZAP differ
AttributeCitizenOWASP ZAP
Pricing modelfreemiumfree
PlatformsIos, AndroidDesktop, Cli, Api
CategoryGovernmentCybersecurity
Founded20162001

Identical on both: starting price (Free), 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 Citizen

  • Real-time Alerts
  • 911 Monitoring
  • Live Video
  • Safety Map
  • Personal Safety
  • Emergency Services
  • Social Media
  • Location Services

Only in OWASP ZAP

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

What people use each for

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

Citizen

  • Citizen Servicesnot OWASP ZAP
  • Records Managementnot OWASP ZAP
  • Public Safetynot OWASP ZAP
  • Civic Engagementnot OWASP ZAP

OWASP ZAP

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

Where each one falls short

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

Citizen

  • No premium or paid features mentioned
  • App is completely free with no monetization model disclosed
  • No in-app purchases or premium tier mentioned
  • Subscription or paid features may exist but not disclosed

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.

Pricing, plan by plan

Citizen

Free
  • BasicFree
    • Real-time Alerts
    • Incident Feed
    • Safety Map

OWASP ZAP

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

Which should you pick?

Choose Citizen if

  • You need real-time alerts.
  • You want to start without paying.
  • You work on Ios, Android.
  • You also want 911 monitoring.
Citizen review

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

Questions people ask

Is Citizen or OWASP ZAP better?
Neither clearly leads. Citizen starts at Free and OWASP ZAP at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Citizen or OWASP ZAP?
Citizen starts at Free and OWASP ZAP at Free.
Does Citizen or OWASP ZAP run on more platforms?
Citizen runs on Ios, Android. OWASP ZAP runs on Desktop, Cli, Api.
Can I use Citizen for free?
Both have a free tier, so you can try either at no cost before committing.
What is Citizen best used for?
Citizen is most often used for citizen services, records management, public safety, civic engagement. Of those, citizen services and records management are not what OWASP ZAP is typically brought in for.
What can Citizen do that OWASP ZAP cannot?
Citizen covers Real-time Alerts, 911 Monitoring, Live Video, Safety Map. OWASP ZAP covers Intercepting proxy, Passive scanner, Active scanner, AJAX spider.

Answered from the vendors’ own pages

Citizen: How much does Citizen cost?

Citizen is available as a free app download for iOS and Android. The app includes core safety and alert features at no cost.

Source
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.

Citizen: Are there paid features or premium subscriptions in Citizen?

Citizen's website does not mention paid features, premium subscriptions, or in-app purchases. All advertised features appear to be included in the free app.

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.

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.

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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