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Government · head to head

CitizenLab vs Tenable Nessus

CitizenLab logo

CitizenLab

Government

Digital Democracy Platform

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

Tenable Nessus

Cybersecurity

Network vulnerability scanner

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Tenable Nessus has a free tier, so it costs nothing to try first.
  • Each has a real cost: CitizenLab citizenLab has rebranded to Go Vocal and the product now sells under govocal.com; Tenable Nessus nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • They diverge on capability: CitizenLab covers Participatory Budgeting, Tenable Nessus covers Network scanning.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which CitizenLab and Tenable Nessus actually diverge.

Attributes where CitizenLab and Tenable Nessus differ
AttributeCitizenLabTenable Nessus
Starting price$500/monthFree
Free tierNoYes
PlatformsWeb, Ios, AndroidWindows, Linux, Macos, Cloud
CategoryGovernmentCybersecurity
Founded20152002

Identical on both: pricing model (subscription), 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 CitizenLab

  • Participatory Budgeting
  • Idea Management
  • Online Consultations
  • Surveys & Polls
  • AI-powered Analysis
  • Single Sign-On
  • Open Data Portals
  • GIS Systems

Only in Tenable Nessus

  • Network scanning
  • Vulnerability detection
  • Configuration assessment
  • Malware detection
  • Compliance checking
  • Cloud security assessment
  • Mobile scanning
  • API access

What people use each for

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

CitizenLab

  • Running community consultation and participatory budgeting for a citynot Tenable Nessus
  • Collecting resident input through surveys, ideation, mapping and votingnot Tenable Nessus
  • Centralising engagement data across multiple municipal departmentsnot Tenable Nessus

Tenable Nessus

  • Vulnerability scanning of servers, network devices and web applicationsnot CitizenLab
  • Configuration and compliance auditing against hardening benchmarksnot CitizenLab
  • Point in time assessments by consultants and penetration testersnot CitizenLab

Where each one falls short

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

CitizenLab

  • CitizenLab has rebranded to Go Vocal and the product now sells under govocal.com
  • No prices are published on the plans page; every tier requires scheduling a demo
  • The Essential plan allows only 1 active project and 1 admin seat, with no project manager seats
  • Standard is limited to 4 admin seats and 5 project manager seats, and Premium to 8 admin seats and 25 project manager seats
  • Standard restricts Sensemaking to Light, capped at 30 inputs; auto-insights require Premium
  • The integrated Konveio document annotation and Echo blended engagement methods are excluded from Standard and require Premium
  • Auto-translation on Premium is limited to 3 languages
  • Custom fonts and other premium styling options are Premium only
  • Priority support is Premium only
  • Plans are split by population band, with separate ladders for cities under and over 100K population

Tenable Nessus

  • Nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • Support beyond the base entitlement costs an extra $400 per year for Advanced Support with 24x365 phone and chat access
  • The on demand training course is a separate $275 purchase for a single person for one year
  • Multi year discounts require paying for two or three years up front

Pricing, plan by plan

CitizenLab

$500/month
  • Government$500/month
    • Participatory Budgeting
    • Idea Collection
    • Surveys

Tenable Nessus

Free
  • Nessus EssentialsFree
    • Up to 16 ips
    • Network scanning
    • Vulnerability assessment
  • Nessus Professional$2600/year
    • Unlimited targets
    • Enterprise features
    • Advanced analytics
  • Nessus Expert$5200/year
    • All Professional features
    • Cloud integration
    • Advanced reporting

Which should you pick?

Choose CitizenLab if

  • You need participatory budgeting.
  • You work on Web, Ios, Android.
  • You also want idea management.
CitizenLab review

Choose Tenable Nessus if

  • You need network scanning.
  • You want to start without paying.
  • You work on Windows, Linux, Macos, Cloud.
  • You also want vulnerability detection.
Tenable Nessus review

Questions people ask

Is CitizenLab or Tenable Nessus better?
Neither clearly leads. CitizenLab starts at $500/month and Tenable Nessus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CitizenLab or Tenable Nessus?
Tenable Nessus has a free tier; the other does not. Paid plans start at $500/month for CitizenLab and Free for Tenable Nessus.
Does CitizenLab or Tenable Nessus run on more platforms?
CitizenLab runs on Web, Ios, Android. Tenable Nessus runs on Windows, Linux, Macos, Cloud.
Can I use Tenable Nessus for free?
Yes. Tenable Nessus has a free tier, so you can try it without paying. CitizenLab starts at $500/month.
What is CitizenLab best used for?
CitizenLab is most often used for running community consultation and participatory budgeting for a city, collecting resident input through surveys, ideation, mapping and voting, centralising engagement data across multiple municipal departments. Of those, running community consultation and participatory budgeting for a city and collecting resident input through surveys, ideation, mapping and voting are not what Tenable Nessus is typically brought in for.
What can CitizenLab do that Tenable Nessus cannot?
CitizenLab covers Participatory Budgeting, Idea Management, Online Consultations, Surveys & Polls. Tenable Nessus covers Network scanning, Vulnerability detection, Configuration assessment, Malware detection.

Answered from the vendors’ own pages

CitizenLab: How many projects can Essential tier teams manage?

The Essential tier is designed for teams starting small and is limited to 1 active project with 1 admin seat and no project manager seats.

Source
Tenable Nessus: What are the three Nessus offerings?

Nessus Essentials is a free introductory offering for educators, students, and career starters, limited to 16 IPs for scanning. Nessus Professional is designed for consultants and SMBs, providing unlimited IT scans across any location. Nessus Expert is the premium offering extending Professional with web application scanning, infrastructure-as-code scanning, and external attack surface assessment up to 5 domains.

Source
CitizenLab: How many projects can Standard and Premium tiers manage?

Both Standard and Premium tiers support unlimited projects. Standard includes 4 admin seats and 5 project manager seats, while Premium includes 8 admin seats and 25 project manager seats.

Source
Tenable Nessus: What OS platforms does Nessus support?

Nessus runs on Debian/Kali Linux, Fedora, FreeBSD, Mac OS X, Red Hat/CentOS, SUSE Linux, Ubuntu, and various Windows versions including Server 2008, 2012, and Windows 7-10.

Source
CitizenLab: Does Enterprise tier have any user seat limits?

No, the Enterprise tier is designed for organizations aiming to embed engagement deeply within their infrastructure and includes unlimited admin seats and project managers.

Source
Tenable Nessus: Can I use Nessus to scan third-party networks as a consultant?

Yes, Tenable permits you to use Nessus to scan third-party networks. Nessus Professional is ideal for consultants.

Source
CitizenLab: What are the specific pricing amounts for each tier?

Specific pricing amounts are not disclosed on the plans page. The company directs interested organizations to talk to their team for personalized pricing offers.

Source
Tenable Nessus: Can Nessus perform PCI external scanning?

Yes, you can use Nessus Professional to perform external network scans as required by the PCI DSS 11.2.2 requirement.

Source
Tenable Nessus: What additional features does Nessus Expert provide?

Web application scanning, which is dynamic application security testing (DAST) providing comprehensive visibility and insight into web application security issues; scanning code repositories for vulnerabilities; and assessing external attack surface with subdomain discovery.

Source
Tenable Nessus: What support options exist for Nessus Professional?

Standard Support includes software upgrades, patches, plugin access, and 24x7 support via chat and community portal. Advanced Support adds 24x7 phone access and committed SLAs: P1 less than 2 hours, P2 less than 4 hours, P3 less than 12 hours, P4 less than 24 hours.

Source
Tenable Nessus: How frequently are Nessus plugins updated?

Nessus plugins are updated daily, based on when vendors and security research sites publish new vulnerabilities.

Source
Tenable Nessus: How does licensing work in virtual machine environments?

Whether you are using Nessus in a physical or a virtual environment, the IP addresses or hosts that you are scanning from must be licensed.

Source
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