Cybersecurity · head to head
Logto vs OWASP ZAP
Logto
Cybersecurity
Open-source identity and authentication infrastructure for apps and APIs
- From
- Free
- Rated
- -
OWASP ZAP
Cybersecurity
Free, open-source web application scanner and intercepting proxy, now governed by the Software Security Project.
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Logto advanced features like RBAC, organizations, MFA, and enterprise SSO are billed as separate paid add-ons rather than included in Pro.; 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: Logto covers Prebuilt sign-in UI, OWASP ZAP covers Intercepting proxy.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Logto and OWASP ZAP actually diverge.
Identical on both: starting price (Free), free tier (Yes), 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 Logto
- Prebuilt sign-in UI
- Social connectors
- Role-based access control
- Multi-factor authentication
- Machine-to-machine apps
- Audit logs
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.
Logto
- Adding sign-in to a new SaaS productnot OWASP ZAP
- Implementing SSO for B2B customersnot OWASP ZAP
- Securing internal APIs with M2M tokensnot OWASP ZAP
- Adding RBAC and organizations to a multi-tenant appnot 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 Logto
- Manual penetration testing that needs an intercepting proxy, request replay and fuzzing without a paid licence per testernot Logto
- Teaching developers what an attack against their own endpoint looks like, using a tool they can install themselvesnot Logto
- Pre-release regression scanning of an internal application that would never justify a commercial DAST subscriptionnot Logto
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Logto
- Advanced features like RBAC, organizations, MFA, and enterprise SSO are billed as separate paid add-ons rather than included in Pro.
- Enterprise pricing is not published and requires contacting sales.
- Token-based billing can make cost forecasting harder than flat per-MAU pricing for high-traffic apps.
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
Logto
Free- FreeFree
- Up to 50,000 MAU
- 50K tokens included
- 3 applications
- Pro$24/month
- Unlimited MAU and applications
- 3 included API resources
- Passkey sign-in
OWASP ZAP
Free- Free & Open SourceFree
- Full functionality
- Active & passive scanning
- Spider
Which should you pick?
Choose Logto if
- You need prebuilt sign-in ui.
- You want to start without paying.
- You work on web, api.
- You also want social connectors.
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.
Questions people ask
- Is Logto or OWASP ZAP better?
- Neither clearly leads. Logto 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, Logto or OWASP ZAP?
- Logto starts at Free and OWASP ZAP at Free.
- Does Logto or OWASP ZAP run on more platforms?
- Logto runs on web, api. OWASP ZAP runs on Desktop, Cli, Api.
- Can I use Logto for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Logto best used for?
- Logto is most often used for adding sign-in to a new saas product, implementing sso for b2b customers, securing internal apis with m2m tokens, adding rbac and organizations to a multi-tenant app. Of those, adding sign-in to a new saas product and implementing sso for b2b customers are not what OWASP ZAP is typically brought in for.
- What can Logto do that OWASP ZAP cannot?
- Logto covers Prebuilt sign-in UI, Social connectors, Role-based access control, Multi-factor authentication. OWASP ZAP covers Intercepting proxy, Passive scanner, Active scanner, AJAX spider.
Answered from the vendors’ own pages
Logto: What does Logto cost?
Logto offers a Free plan at $0/month, a Pro plan starting at $24/month with 50K free tokens included, and a custom-priced Enterprise plan. Extra add-ons like RBAC or MFA are billed separately on Pro.
SourceOWASP 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.
Logto: Is there a free plan, and what are its limits?
Yes. The Free plan supports up to 50,000 monthly active users, 3 total applications, 1 machine-to-machine app, 3 social connectors, 1 webhook, and 3-day audit log retention.
SourceOWASP 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.
Logto: How is usage metered?
Logto uses token-based billing: only access tokens issued for authentication and authorization activity are counted, rather than charging purely per MAU.
SourceOWASP 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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