Compare Vulny vs Nessus
Comparing Nessus? Nessus is software you install and run yourself. Here is how Vulny compares for teams that want continuous cloud scanning, a lower cost and an ISO 27001 ISMS — with nothing to host.
Comparison last updated: June 2026. Details about Nessus are taken from its public website and third-party listings and reflect our understanding on that date; Nessus may have changed since. Figures Nessus does not publish are shown as approximate.
Vulny vs Nessus at a glance
| Vulny | Nessus | |
|---|---|---|
| Setup | Cloud — nothing to install, no agents | Installed software — you host the scanner |
| Time to first scan | Minutes, straight from your browser | After install & configuration |
| Pricing | Transparent flat price — one-off scan or fixed monthly plan | Pro $4,790/yr, Expert $6,790/yr (published) |
| Security expertise needed | Not needed — findings come prioritised with a ready-to-send report | Built for security pros |
| Continuous & emerging threats | Continuous; re-checks your assets against new CVEs every 2 hours | Point-in-time / scheduled scans |
| Scan scope | Ports & CVEs + web app + API / shadow-API + SSL/TLS | Deep network scanning; web/API/EASM only on Expert (5 FQDNs) |
| Built-in ISMS (ISO 27001) | Yes — risk register, Statement of Applicability, incidents, third-party risk | No |
| Reports | Branded PDF & DOC, ISO 27001-ready | Scan reports (technical) |
Why teams choose Vulny
Nothing to install
Nessus is software you host and maintain; Vulny is cloud — just enter your site.
Continuous, not point-in-time
Nessus scans on a schedule you run; Vulny monitors continuously and re-checks new CVEs every 2 hours.
Lower cost
No $4,790–$6,790/yr licence — pay once for a scan or a fixed monthly plan.
ISMS + reports included
Nessus is a scanner only; Vulny adds the ISO 27001 ISMS and branded, audit-ready PDF/DOC reports.
Frequently asked questions
Is Vulny a good Nessus alternative?
Yes — if you would rather not install and maintain a scanner. Vulny is cloud-based, scans continuously, costs less than a Nessus licence and includes an ISO 27001 ISMS that Nessus does not.
Do I have to install Vulny like Nessus?
No. Nessus is self-hosted software; Vulny runs in the cloud — you just enter your website and scan from the browser.
Is Vulny continuous, unlike Nessus?
Yes. Nessus runs point-in-time or scheduled scans, while Vulny monitors continuously and re-checks your assets against newly published CVEs every two hours.
See it on your own site
Run a security scan and get a branded ISO 27001 ready PDF report.
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