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Government · head to head

ShotSpotter vs Tenable Nessus

ShotSpotter logo

ShotSpotter

Government

Gunshot Detection Technology

From
$5000/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: ShotSpotter shotSpotter now trades as SoundThinking and shotspotter.com redirects to soundthinking.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: ShotSpotter covers Gunshot Detection, Tenable Nessus covers Network scanning.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where ShotSpotter and Tenable Nessus differ
AttributeShotSpotterTenable Nessus
Starting price$5000/monthFree
Free tierNoYes
PlatformsWeb, Ios, AndroidWindows, Linux, Macos, Cloud
CategoryGovernmentCybersecurity
Founded19962002

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 ShotSpotter

  • Gunshot Detection
  • Location Triangulation
  • Real-time Alerts
  • Forensic Analysis
  • Historical Data
  • CAD Systems
  • 911 Centers
  • Camera 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.

ShotSpotter

  • Gunshot detection and location alerting for police departmentsnot Tenable Nessus
  • Directing patrol response to outdoor firearm dischargesnot Tenable Nessus
  • Building incident data for law enforcement analysisnot Tenable Nessus

Tenable Nessus

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

Where each one falls short

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

ShotSpotter

  • ShotSpotter now trades as SoundThinking and shotspotter.com redirects to soundthinking.com
  • No pricing is published; the site routes to contact and demo requests with no published rate, minimum or cost driver
  • The service depends on an acoustic sensor array installed across a defined coverage area rather than being software alone

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

ShotSpotter

$5000/month
  • Detection Service$5000/month
    • Gunshot Detection
    • Real-time Alerts
    • Forensic Reports

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 ShotSpotter if

  • You need gunshot detection.
  • You work on Web, Ios, Android.
  • You also want location triangulation.
ShotSpotter 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 ShotSpotter or Tenable Nessus better?
Neither clearly leads. ShotSpotter starts at $5000/month and Tenable Nessus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ShotSpotter or Tenable Nessus?
Tenable Nessus has a free tier; the other does not. Paid plans start at $5000/month for ShotSpotter and Free for Tenable Nessus.
Does ShotSpotter or Tenable Nessus run on more platforms?
ShotSpotter 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. ShotSpotter starts at $5000/month.
What is ShotSpotter best used for?
ShotSpotter is most often used for gunshot detection and location alerting for police departments, directing patrol response to outdoor firearm discharges, building incident data for law enforcement analysis. Of those, gunshot detection and location alerting for police departments and directing patrol response to outdoor firearm discharges are not what Tenable Nessus is typically brought in for.
What can ShotSpotter do that Tenable Nessus cannot?
ShotSpotter covers Gunshot Detection, Location Triangulation, Real-time Alerts, Forensic Analysis. Tenable Nessus covers Network scanning, Vulnerability detection, Configuration assessment, Malware detection.

Answered from the vendors’ own pages

ShotSpotter: Does SoundThinking publish ShotSpotter pricing?

No. SoundThinking does not disclose ShotSpotter pricing on their website. Interested municipalities and organizations must request a consultation, contact the sales team, or book a demo.

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
ShotSpotter: How do I get a ShotSpotter quote?

SoundThinking directs prospects to book a demo, contact them directly, or request a consultation through their website. No self-serve pricing, calculator, or trial is available.

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
ShotSpotter: Who is ShotSpotter for?

ShotSpotter is a gunshot detection system designed for law enforcement and municipalities to improve public safety response.

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
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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