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Developer Tools · head to head

Octopus Deploy vs Tenable Nessus

Octopus Deploy logo

Octopus Deploy

Developer Tools

Continuous delivery and runbook automation for releases

From
Free
Free plan
Yes
Full reviewWebsite
Tenable Nessus logo

Tenable Nessus

Cybersecurity

Network vulnerability scanner

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Octopus Deploy free tier caps at 10 projects, 10 tenants, 10 machines, 10 users, 5 concurrent tasks and 1 space; Tenable Nessus nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Octopus Deploy and Tenable Nessus actually diverge.

Attributes where Octopus Deploy and Tenable Nessus differ
AttributeOctopus DeployTenable Nessus
PlatformsWebWindows, Linux, Macos, Cloud
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2002

Identical on both: starting price (Free), pricing model (subscription), free tier (Yes), 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 Octopus Deploy

Nothing recorded that Tenable Nessus does not also cover.

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.

Octopus Deploy

  • Automating software deployments across development, testing, productionnot Tenable Nessus
  • Automating emergency tasks like website failover and incident responsenot Tenable Nessus
  • Managing multi-tenant deployments without duplicating configurationnot Tenable Nessus
  • Tracking DORA metrics and enforcing deployment approval gatesnot Tenable Nessus

Tenable Nessus

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

Where each one falls short

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

Octopus Deploy

  • Free tier caps at 10 projects, 10 tenants, 10 machines, 10 users, 5 concurrent tasks and 1 space
  • Annual billing is the only option for both Octopus Cloud and Octopus Server; there is no monthly plan
  • Professional cloud tier is $4,330 per year and Enterprise cloud is $24,600 per year, with tenants and machines sold as add-ons beyond the free allotment

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

Octopus Deploy

Free
  • FreeFree
    • 10 projects
    • 10 tenants
    • 10 machines
  • Professional (Cloud)$4330/year
    • Up to 100 projects
    • Unlimited spaces and users
    • Tenants and machines available as add-ons
  • Professional (Server)$2080/year
    • Up to 100 projects
    • Unlimited spaces and users
    • Tenants and machines available as add-ons
  • Enterprise (Cloud)$24600/year
    • 100+ projects supported
    • Unlimited spaces and users
    • 20 concurrent tasks

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 Octopus Deploy if

  • You want to start without paying.
Octopus Deploy 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 Octopus Deploy or Tenable Nessus better?
Neither clearly leads. Octopus Deploy starts at Free and Tenable Nessus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Octopus Deploy or Tenable Nessus?
Octopus Deploy starts at Free and Tenable Nessus at Free.
Does Octopus Deploy or Tenable Nessus run on more platforms?
Octopus Deploy runs on Web. Tenable Nessus runs on Windows, Linux, Macos, Cloud.
Can I use Octopus Deploy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Octopus Deploy best used for?
Octopus Deploy is most often used for automating software deployments across development, testing, production, automating emergency tasks like website failover and incident response, managing multi-tenant deployments without duplicating configuration, tracking dora metrics and enforcing deployment approval gates. Of those, automating software deployments across development, testing, production and automating emergency tasks like website failover and incident response are not what Tenable Nessus is typically brought in for.
What can Octopus Deploy do that Tenable Nessus cannot?
Tenable Nessus covers Network scanning, Vulnerability detection, Configuration assessment, Malware detection.

Answered from the vendors’ own pages

Octopus Deploy: How much does Octopus Deploy cost?

Octopus Deploy offers a free tier at $0/year with limits on projects (10), users (10), and tenants (10). Professional plans start at $2,080/year for self-hosted or $4,330/year for cloud hosting.

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
Octopus Deploy: What does the free Octopus Deploy tier include?

The free tier includes 10 projects, 10 tenants, 10 machines, 10 users, 5 concurrent tasks, 1TB file storage, 100GB database storage, and community support only.

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
Octopus Deploy: Can I try Octopus Deploy for free before purchasing?

Yes, a free tier is available with unlimited duration but capped usage, plus a 30-day free trial with full Enterprise features is offered to evaluate the platform.

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
Octopus Deploy: What are the Enterprise pricing differences between Cloud and Server hosting?

Enterprise Cloud hosting costs $24,600/year and includes 20 concurrent tasks and 24/7 support. Enterprise Server self-hosted costs $15,600/year with flexible concurrent task configuration and 24/7 support.

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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