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Cybersecurity · head to head

Private Internet Access vs Tenable Nessus

P

Private Internet Access

Cybersecurity

Long-standing VPN service with a large server network and flexible multi-year plans

From
$11.99/month
Rated
-
Full reviewWebsite
Tenable Nessus logo

Tenable Nessus

Cybersecurity

Network vulnerability scanner

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Tenable Nessus has a free tier, so it costs nothing to try first.
  • Each has a real cost: Private Internet Access monthly plan is priced noticeably higher than the discounted multi-year commitments, penalizing short-term users.; 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: Private Internet Access covers Split tunneling, Tenable Nessus covers Network scanning.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Private Internet Access and Tenable Nessus actually diverge.

Attributes where Private Internet Access and Tenable Nessus differ
AttributePrivate Internet AccessTenable Nessus
Starting price$11.99/monthFree
Free tierNoYes
Platformswindows, mac, linux, ios, androidWindows, Linux, Macos, Cloud
FoundedUnknown2002

Identical on both: pricing model (subscription), user rating (Not yet rated), category (Cybersecurity).

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 Private Internet Access

  • Split tunneling
  • Kill switch
  • Ad and tracker blocking
  • Dedicated IP add-on
  • Bundled antivirus add-on

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.

Private Internet Access

  • Encrypting traffic on public Wi-Fi with a kill switchnot Tenable Nessus
  • Blocking ads and trackers network-wide via MACEnot Tenable Nessus
  • Maintaining a consistent connection identity with a dedicated IP add-onnot Tenable Nessus
  • Committing to a long-term plan for a lower effective monthly ratenot Tenable Nessus

Tenable Nessus

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

Where each one falls short

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

Private Internet Access

  • Monthly plan is priced noticeably higher than the discounted multi-year commitments, penalizing short-term users.
  • Dedicated IP and antivirus are paid add-ons rather than included features.
  • Headquartered in a jurisdiction whose privacy reputation some competitors market against, despite audited no-logs claims.
  • App interface is less streamlined than some higher-priced premium VPN competitors.

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

Private Internet Access

$11.99/month
  • Monthly$11.99/month
    • Billed month to month
    • Full server network access
    • 30-day money-back guarantee
  • 1-Year$3.1/month
    • Billed annually at $37.19
    • Full server network access
  • 2-Year$2.19/month
    • Lowest advertised rate, billed every 2 years
    • Full server network access

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 Private Internet Access if

  • You need split tunneling.
  • You work on windows, mac, linux, ios, android.
  • You also want kill switch.
Private Internet Access 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 Private Internet Access or Tenable Nessus better?
Neither clearly leads. Private Internet Access starts at $11.99/month and Tenable Nessus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Private Internet Access or Tenable Nessus?
Tenable Nessus has a free tier; the other does not. Paid plans start at $11.99/month for Private Internet Access and Free for Tenable Nessus.
Does Private Internet Access or Tenable Nessus run on more platforms?
Private Internet Access runs on windows, mac, linux, 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. Private Internet Access starts at $11.99/month.
What is Private Internet Access best used for?
Private Internet Access is most often used for encrypting traffic on public wi-fi with a kill switch, blocking ads and trackers network-wide via mace, maintaining a consistent connection identity with a dedicated ip add-on, committing to a long-term plan for a lower effective monthly rate. Of those, encrypting traffic on public wi-fi with a kill switch and blocking ads and trackers network-wide via mace are not what Tenable Nessus is typically brought in for.
What can Private Internet Access do that Tenable Nessus cannot?
Private Internet Access covers Split tunneling, Kill switch, Ad and tracker blocking, Dedicated IP add-on. Tenable Nessus covers Network scanning, Vulnerability detection, Configuration assessment, Malware detection.

Answered from the vendors’ own pages

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
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
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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