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Paid plans start at $399.17/mo.
Nessus Professional costs $4,790 for a one-year license, equivalent to $399.17 per month when divided by 12. Nessus Expert costs $6,790 per year, or $565.83 per month on the same basis. The pricing page lists license totals, not monthly billing. Professional includes unlimited vulnerability scanning and real-time updates; Expert adds web app scanning and external attack surface discovery. No free plan is listed, and Nessus Advanced Support has no published price.
01Every plan, line by line
| Plan | Billed annually | Billed monthly | Built for |
|---|---|---|---|
| Nessus Professional | $399.17 | — | Core vulnerability assessment teams |
| Nessus Expert | $565.83 | — | Teams needing web and attack-surface scans |
Add-ons and overages
- Nessus Advanced Support; price not published
02What the plan grid doesn't tell you
Annual license, not monthly
The listed $399.17 and $565.83 monthly figures are annual-equivalent calculations. The pricing page lists one-year license totals, not monthly billing.
Per-license pricing
Prices are per license. The published pricing information does not state a multi-license discount or a team-wide price.
Multi-year commitment
Professional costs $9,330.95 for two years or $13,637.54 for three. Expert costs $13,208.13 or $19,304.19, respectively.
Support price not published
Nessus Advanced Support is listed as an add-on, but its price is not published on the vendor's site.
03Which plan should you buy?
| If you are… | Get | Why |
|---|---|---|
| Teams focused on vulnerability scans | Nessus Professional | The $4,790 one-year license includes unlimited vulnerability scanning and real-time vulnerability updates. |
| Teams scanning web apps | Nessus Expert | At $6,790 per year, it includes Professional features plus web app scanning. |
| Teams needing attack-surface discovery | Nessus Expert | It adds external attack surface discovery scanning to the Professional feature set. |
04Is Nessus worth the money?
Nessus is a substantial upfront purchase: the entry license is $4,790 for one year, even though the annual equivalent looks like $399.17 per month. Professional’s unlimited scanning and real-time updates may suit teams that need those capabilities; Expert costs $2,000 more for web app and external attack surface scans. The published pricing information does not establish how Nessus compares with other vulnerability scanners, so weigh those listed features against your requirements before committing.
Nessus pricing FAQ
What does Nessus software do?
The published pricing information describes Nessus Professional as offering unlimited vulnerability scanning and real-time vulnerability updates. Nessus Expert adds web app scanning and external attack surface discovery scanning. The published Tenable homepage describes Tenable One, not Nessus by name, so it does not establish that those broader platform capabilities are included with a Nessus license.
Which is better, OpenVAS or Nessus?
The published sources do not compare Nessus with OpenVAS, so we can’t make a sourced claim about which is better. Nessus Professional’s listed features are unlimited vulnerability scanning and real-time vulnerability updates. Compare those against OpenVAS’s current pricing, features and licensing terms before choosing; those details are not included here.
How much does Vulscan cost per month?
A Vulscan price is not published on the vendor's site, so we can’t give a monthly cost. This page’s prices are for Nessus licenses: $399.17 per month is the annual equivalent of the Professional one-year total, not a monthly billing price.
Is Nessus for free?
The published pricing information lists no free plan. Nessus Professional starts at $4,790 for a one-year license, and Nessus Expert starts at $6,790. A free-trial offer is not published on the vendor's site, so check Tenable’s current terms before assuming one is available.