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Cybersecurity · head to head

Entrust Identity as a Service vs Tenable

Entrust Identity as a Service logo

Entrust Identity as a Service

Cybersecurity

Workforce and customer authentication from a certificate authority

From
$2/month
Rated
-
Full reviewWebsite
Tenable logo

Tenable

Cybersecurity

AI-powered exposure management platform for unified security visibility

From
$3500/year
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Entrust Identity as a Service the application integration catalogue is smaller than that of the dedicated identity vendors, so uncommon SaaS applications more often need custom SAML configuration rather than a template.; Tenable pricing starts at $3500/year for Tenable One VM, expensive for small organizations
  • They diverge on capability: Entrust Identity as a Service covers Multi-factor authentication, Tenable covers Unified attack surface mapping.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Entrust Identity as a Service and Tenable actually diverge.

Attributes where Entrust Identity as a Service and Tenable differ
AttributeEntrust Identity as a ServiceTenable
Starting price$2/month$3500/year
Pricing modelPer user per monthsubscription
PlatformsWeb, iOS, Android, Windows, LinuxCloud, Web

Identical on both: free tier (No), 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 Entrust Identity as a Service

  • Multi-factor authentication
  • Single sign-on
  • Adaptive authentication
  • Passwordless login
  • Credential lifecycle
  • Derived PIV credentials
  • Directory integration

Only in Tenable

  • Unified attack surface mapping
  • Exposure intelligence enrichment
  • Tenable Hexa AI orchestration
  • Cloud Exposure (CNAPP)
  • OT Exposure
  • Identity Exposure
  • Vulnerability Management
  • Attack Surface Management

What people use each for

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

Entrust Identity as a Service

  • A government agency needing derived mobile credentials from an existing PIV smart card estatenot Tenable
  • A bank that must support hardware tokens for corporate treasury users alongside push authentication for staffnot Tenable
  • An organisation already buying Entrust certificates that wants credential issuance and authentication from one vendornot Tenable
  • A defence supplier required to use certificate-based authentication that mainstream cloud identity products handle poorlynot Tenable

Tenable

  • Comprehensive vulnerability scanning for enterprise networksnot Entrust Identity as a Service
  • Cloud security monitoring and compliance for AWS, Azure, GCPnot Entrust Identity as a Service
  • Identity and access management risk assessmentnot Entrust Identity as a Service
  • Operational technology security for industrial systemsnot Entrust Identity as a Service
  • Attack surface management for third-party risknot Entrust Identity as a Service

Where each one falls short

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

Entrust Identity as a Service

  • The application integration catalogue is smaller than that of the dedicated identity vendors, so uncommon SaaS applications more often need custom SAML configuration rather than a template.
  • Developer experience for customer identity use cases is behind the specialists, and teams building consumer signup flows will find the APIs and documentation less complete.
  • Advanced capabilities including adaptive authentication and credential management sit above the published entry price, so the two dollar figure rarely reflects what a regulated buyer actually spends.
  • There are two overlapping products, Identity as a Service and Identity Enterprise, and choosing wrongly at the start means a migration later rather than a licence change.
  • Identity governance, access certification and privileged access are not covered, so an organisation with audit-driven access review requirements needs a second vendor alongside it.

Tenable

  • Pricing starts at $3500/year for Tenable One VM, expensive for small organizations
  • Many enterprise features require custom quote and sales engagement
  • Cloud Exposure, OT Exposure, and other modules have no published pricing
  • Multi-year contracts common, limiting flexibility
  • Setup and configuration complexity for enterprise deployments

Pricing, plan by plan

Entrust Identity as a Service

$2/month
  • Workforce Standard$2/month
    • Multi-factor authentication
    • Single sign-on
    • Directory integration
  • Higher tiers$undefined/month
    • Adaptive risk-based authentication
    • Certificate and smart card credential management
    • Derived PIV credentials

Tenable

$3500/year
  • Tenable One Vulnerability Management$3500/year
    • Per 100 assets
    • Multi-year discounts available
  • Tenable One Web App Scanning$3578/year
    • Per 5 FQDNs
    • Annual subscription
  • Nessus Professional$4790/year
    • Vulnerability scanning
    • Multi-year discounts available
    • Optional advanced support: $400/year
  • Nessus Expert$6790/year
    • Advanced vulnerability scanning
    • Multi-year discounts available
    • Optional advanced support: $400/year

Which should you pick?

Choose Entrust Identity as a Service if

  • You need multi-factor authentication.
  • You work on Web, iOS, Android, Windows, Linux.
  • You also want single sign-on.
Entrust Identity as a Service review

Choose Tenable if

  • You need unified attack surface mapping.
  • You work on Cloud, Web.
  • You also want exposure intelligence enrichment.
Tenable review

Questions people ask

Is Entrust Identity as a Service or Tenable better?
Neither clearly leads. Entrust Identity as a Service starts at $2/month and Tenable at $3500/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Entrust Identity as a Service or Tenable?
Entrust Identity as a Service starts at $2/month and Tenable at $3500/year.
Does Entrust Identity as a Service or Tenable run on more platforms?
Entrust Identity as a Service runs on Web, iOS, Android, Windows, Linux. Tenable runs on Cloud, Web.
What is Entrust Identity as a Service best used for?
Entrust Identity as a Service is most often used for a government agency needing derived mobile credentials from an existing piv smart card estate, a bank that must support hardware tokens for corporate treasury users alongside push authentication for staff, an organisation already buying entrust certificates that wants credential issuance and authentication from one vendor, a defence supplier required to use certificate-based authentication that mainstream cloud identity products handle poorly. Of those, a government agency needing derived mobile credentials from an existing piv smart card estate and a bank that must support hardware tokens for corporate treasury users alongside push authentication for staff are not what Tenable is typically brought in for.
What can Entrust Identity as a Service do that Tenable cannot?
Entrust Identity as a Service covers Multi-factor authentication, Single sign-on, Adaptive authentication, Passwordless login. Tenable covers Unified attack surface mapping, Exposure intelligence enrichment, Tenable Hexa AI orchestration, Cloud Exposure (CNAPP).

Answered from the vendors’ own pages

Entrust Identity as a Service: Is MFA included or extra?

Multi-factor authentication is included in the workforce bundles rather than sold separately, which is not true of every competitor. Adaptive risk-based authentication sits in higher tiers.

Tenable: How is Tenable One pricing structured?

Tenable One Vulnerability Management costs $3500/year per 100 assets. Web App Scanning is $3578/year per 5 FQDNs. Multi-year discounts are available.

Source
Entrust Identity as a Service: Does it do identity governance?

No. Access certification, role mining and joiner-mover-leaver governance require a separate product such as SailPoint or Saviynt.

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

Nessus Professional costs $4790/year and provides core vulnerability scanning. Nessus Expert costs $6790/year and offers advanced scanning capabilities.

Source
Entrust Identity as a Service: Why choose this over Okta or Entra ID?

Almost always because of PKI, smart cards or derived credentials. Without that requirement the mainstream platforms are the stronger general purpose choice.

Tenable: Are custom support and training available for Tenable?

Yes. Optional advanced support is available for $400/year. Training courses range from $275-$385/year.

Source
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