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Government · head to head

Granicus vs Nessus

Granicus logo

Granicus

Government

Digital Government Experiences Platform

From
$500/month
Free plan
No
Full reviewWebsite
Nessus logo

Nessus

Cybersecurity

The most trusted vulnerability assessment solution

From
$4790/year
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: Granicus pricing is custom-quoted and not publicly available; Nessus nessus Professional is $4,790 for one year, with no free or low cost commercial tier
  • They diverge on capability: Granicus covers Citizen Communications, Nessus covers Vulnerability scanning.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Granicus and Nessus actually diverge.

Attributes where Granicus and Nessus differ
AttributeGranicusNessus
Starting price$500/month$4790/year
PlatformsWeb, MobileDesktop, Api
CategoryGovernmentCybersecurity
Founded19992002

Identical on both: pricing model (subscription), free tier (No), 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 Granicus

  • Citizen Communications
  • Meeting Management
  • Digital Forms
  • Website Management
  • Records Management
  • Salesforce
  • Microsoft 365
  • Google Workspace

Only in Nessus

  • Vulnerability scanning
  • Configuration auditing
  • Malware detection
  • Web application scanning
  • Cloud scanning
  • Compliance checks
  • Patch auditing
  • Pre-built policies

What people use each for

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

Granicus

  • Citizen Servicesnot Nessus
  • Records Managementnot Nessus
  • Public Safetynot Nessus
  • Civic Engagementnot Nessus

Nessus

  • Vulnerability scanning for individual practitionersnot Granicus
  • Enterprise vulnerability managementnot Granicus
  • Web application security assessmentsnot Granicus

Where each one falls short

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

Granicus

  • Pricing is custom-quoted and not publicly available
  • Complex sales process for government agencies
  • Integration with legacy government systems can be challenging

Nessus

  • Nessus Professional is $4,790 for one year, with no free or low cost commercial tier
  • Multi year terms are the only discount route, at $9,330.95 for two years and $13,637.54 for three
  • It is a single user scanner, so team workflows mean migrating to another Tenable product
  • Tenable One vulnerability management is priced separately, starting at $3,500 a year for 100 assets

Pricing, plan by plan

Granicus

$500/month
  • Government Starter$500/month
    • Communications Cloud
    • Meeting Management
    • Digital Services

Nessus

$4790/year
  • Nessus Professional$4790/year
    • 1 year license
    • Best for individual security professionals
  • Nessus Professional 2-Year$9330.95/2 years
    • 2 year license with discounted rate vs. annual
  • Nessus Professional 3-Year$13637.54/3 years
    • 3 year license with discounted rate vs. annual
  • Nessus Expert$6790/year
    • 1 year license
    • Enhanced capabilities vs. Professional

Which should you pick?

Choose Granicus if

  • You need citizen communications.
  • You work on Web, Mobile.
  • You also want meeting management.
Granicus review

Choose Nessus if

  • You need vulnerability scanning.
  • You work on Desktop, Api.
  • You also want configuration auditing.
Nessus review

Questions people ask

Is Granicus or Nessus better?
Neither clearly leads. Granicus starts at $500/month and Nessus at $4790/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Granicus or Nessus?
Granicus starts at $500/month and Nessus at $4790/year.
Does Granicus or Nessus run on more platforms?
Granicus runs on Web, Mobile. Nessus runs on Desktop, Api.
What is Granicus best used for?
Granicus is most often used for citizen services, records management, public safety, civic engagement. Of those, citizen services and records management are not what Nessus is typically brought in for.
What can Granicus do that Nessus cannot?
Granicus covers Citizen Communications, Meeting Management, Digital Forms, Website Management. Nessus covers Vulnerability scanning, Configuration auditing, Malware detection, Web application scanning.

Answered from the vendors’ own pages

Granicus: How many government agencies use Granicus?

Over 5,500 federal, state, and local government agencies use Granicus, reaching more than 300 million citizen subscribers.

Source
Nessus: What is the cheapest Nessus option?

Nessus Professional starts at $4,790 per year for a 1-year license. Multi-year commitments offer discounts, with 2-year licenses at $9,330.95 and 3-year licenses at $13,637.54.

Source
Granicus: What does Granicus Engagement Cloud provide?

Granicus Engagement Cloud combines government communications, website management, meeting and agenda management, records management, and citizen service digitization.

Source
Nessus: What is the difference between Nessus Professional and Expert?

Nessus Expert costs $6,790 per year for a 1-year license (compared to $4,790 for Professional) and includes enhanced capabilities. Multi-year rates are available at discounted prices.

Source
Granicus: What are the main features of Granicus?

Granicus provides tools for managing public communications, citizen feedback collection, community event management, online surveys, event registration, and live-streaming capabilities.

Source
Nessus: Does Nessus offer optional support or training?

Yes, Nessus offers add-on services: Advanced Support at $400/year provides 24x365 access to phone, email, community, and chat support. On-Demand Training costs $275/year for Fundamentals course access or $385/year for both Fundamentals and Advanced courses.

Source
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