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Nessus vs Tenable.io Comparison

Last updated:

Nessus

4.4(580 reviews)

Starting at $2,790 /Year

  • Free Trial
  • Large Enterprises
  • Medium Business

Nessus is a vulnerability scanner of its kind, giving user a complete picture of organization's security status. Instantly scan thousands of systems for the latest vulnerabilities and react to them in real time. Nessus m…

Tenable.io

4.1(183 reviews)

Starting at $2,275

  • Large Enterprises
  • Medium Business

Tenable.io is software delivered as a service that gives user a real-time and historical vulnerability information, security insight into the network, and the ability to remediate vulnerabilities in the network. It's all…

Nessus leads on user satisfaction with a 4.4-star rating across 580 reviews.

SpotSaaS Analysis

NessusTenable.io

The core difference between Nessus and Tenable.io lies in their deployment models, with Nessus offering a more comprehensive and flexible solution for diverse IT environments, while Tenable.io focuses on cloud-based vulnerability management for medium to large teams. Ideal buyers for Nessus are organizations seeking robust, user-friendly scanning capabilities, whereas Tenable.io is best suited for teams looking for a streamlined cloud platform for vulnerability data.

- Comprehensive vulnerability scanning - Flexible deployment options - User-friendly interface - Supports agent-based and credentialed scans - Suitable for small businesses and large enterprises - Priced at $2,790

- Cloud-based vulnerability management - Real-time and historical data access - Easy deployment process - Designed for medium to large teams - Flexible and accurate scanning capabilities - Priced at $2,275

Nessus vs Tenable.io — at a glance

FeatureNessusTenable.io
Rating4.4 / 54.1 / 5
Reviews580183
Starting price$2,790 /Year$2,275
Free trial Yes No
Free version No No
Best forLarge Enterprises, Medium Business, Small BusinessLarge Enterprises, Medium Business, Small Business
CategoryVulnerability Management SoftwareVulnerability Management Software
PlatformsSaaS/Web/Cloud, Installed - Windows, Installed - MacSaaS/Web/Cloud, Installed - Windows, Installed - Mac
API
Support modes24/7 (Live rep), OnlineOnline
CertificationsSOC 2, HIPAA, GDPR, ISO 27001
Data residencyUSGlobal

Key differences between Nessus and Tenable.io

  • Pricing: Nessus starts at $2,790 /Year, while Tenable.io starts at $2,275.
  • Free trial: Nessus offers a free trial; Tenable.io does not.
  • User satisfaction: Nessus scores higher with a 4.4-star average.
  • Deployment: Nessus supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac; Tenable.io supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac.

Nessus vs Tenable.io — find the better fit before you commit.

01

Which tool fits your team best

02

Which is actually cheaper for your team size

03

Where each product wins, per real buyers

Most Vulnerability Management Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.

Nessus - Vulnerability Management Software
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Tenable.io - Vulnerability Management Software
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Talk to an expert

Biggest differences

Start here before you go deeper into features.

Nessus

Best for comprehensive, flexible vulnerability scanning across diverse IT environments.

Choose if
  • You need accurate, up-to-date vulnerability detection with automated scanning and reporting.
  • Your team values a user-friendly interface that supports both agent-based and credentialed scans.
  • You require scalable vulnerability management with flexible licensing for any organization size.
Consider alternatives if
  • You need extensive third-party integrations beyond core vulnerability scanning capabilities.
  • Your workflows demand highly customizable reporting without complex setup or cumbersome configuration.

Tenable.io

Best for medium to large teams needing accurate, cloud-based vulnerability management.

Choose if
  • You want a single cloud platform offering real-time and historical vulnerability data.
  • Your team values ease of deployment combined with flexible, accurate vulnerability scanning.
  • You need a user-friendly interface with customizable dashboards for security monitoring.
Consider alternatives if
  • You require highly customizable and advanced reporting features for compliance or audits.
  • Your team prefers minimalistic tools with simple features and low complexity.

Nessus: Best for comprehensive, flexible vulnerability scanning across diverse IT environments. Tenable.io: Best for medium to large teams needing accurate, cloud-based vulnerability management.

Description

Nessus is a vulnerability scanner of its kind, giving user a complete picture of organization's security status. Instantly scan thousands of systems for the latest vulnerabilities and react ... Read More about Nessus

Tenable.io is software delivered as a service that gives user a real-time and historical vulnerability information, security insight into the network, and the ability to remediate ... Read More about Tenable.io

Entry Level Pricing

  • Starts from $2,790
  • Starts from $2,275

Free Trial Availability

  • No free trial

User Ratings

Based on verified Spotsaas reviews

Best Company Size

Small BusinessLarge Enterprises
Medium BusinessLarge Enterprises
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Get pricing help

Software Demo

Demo

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Compare Nessus and Tenable.io on pricing

Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.

Pricing Option

      Starting From

      • $2,790
      • $2,275

      Pricing Plans

      • Not Available
      • Not Available

      Pricing Page

      Nessus pricing
      Tenable.io pricing

      Other Details

      Organization Types supported

      • Large Enterprises
      • Medium Business
      • Small Business
      • Individuals
      • Large Enterprises
      • Medium Business
      • Small Business
      • Individuals

      Platforms Supported

      • Browser Based (Cloud)
      • Installed - Windows
      • Installed - Mac
      • Browser Based (Cloud)
      • Browser Based (Cloud)
      • Installed - Windows
      • Installed - Mac
      • Browser Based (Cloud)

      Modes of support

      • 24/7 (Live rep)
      • Business Hours
      • Online
      • 24/7 (Live rep)
      • Business Hours
      • Online

      API Support

      • Not Available
      • Not Available
      Get help choosing
      Get help choosing

      Security & Compliance

      Certifications, data handling, and security controls for IT and compliance evaluators.

      SOC 2

      ✓ Yes

      HIPAA

      ✓ Yes

      GDPR

      ✓ Yes

      ISO 27001

      ✓ Yes

      Single Sign-On (SSO)

      ✓ Yes

      Multi-Factor Auth (MFA)

      ✓ Yes

      Data Encryption

      ✓ Yes

      Audit Logs

      ✓ Yes

      Data Residency

      🇺🇸 US
      🌐 Global

      Nessus User Reviews & Rating Comparison

      User Ratings

      Rating Distribution

      125

      53

      6

      0

      1

      37

      7

      1

      1

      1

      Spotsaas Editor’s POV generated by AI

      Buyer sentiment

      Overall positive sentiment highlights Nessus’s strong vulnerability detection and user-friendly interface, tempered by occasional scan inconsistencies and limited marketplace options.

      What buyers like

      • Ease of use
      • Comprehensive vulnerability coverage
      • Automation and reporting

      Common complaints

      • Scan time inconsistency
      • Limited marketplace integrations

      Buyer sentiment

      Overall positive sentiment highlighting ease of deployment, scanning accuracy, and usability, tempered by concerns over complexity and limited reporting.

      What buyers like

      • Ease of deployment
      • Scanning accuracy
      • User-friendly interface

      Common complaints

      • Complexity of features
      • Limited reporting capabilities

      Pros and Cons

      • Comprehensive and accurate vulnerability detection with regularly updated plugin repository

      • User-friendly interface with automated scanning and reporting that boosts productivity

      • Supports both agent-based and credentials-based scanning implementations

      • Scan times and results can be inconsistent at times

      • Limited marketplace options for additional apps and connectors

      • Ease of deployment and flexibility

      • Accurate vulnerability scanning with regular database updates

      • User-friendly interface with customizable dashboards

      • Complexity and intimidation due to feature richness without adequate support

      • Limited reporting capabilities and lack of report customization

      Positive Reviews

      No reviews available for the product

      No reviews available for the product

      List of Customers

      Customers

      VMware

      VMware

      DocuSign

      DocuSign

      American Eagle Outfitters

      American Eagle Outfitters

      Global Payments

      Global Payments

      Media and Screenshots

      Screenshots

      Nessus Plugins

      5 Screenshots

      Transforming Vulnerability Management

      6 Screenshots

      Videos

      video-0

      3 Videos

      video-0

      1 Videos

      Top Alternatives to Nessus and Tenable.io in 2026

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      Related Blogs and Articles for Vulnerability Management Software

      Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].

      Frequently asked questions

      Which is better, Nessus or Tenable.io?
      Nessus edges out the other on user ratings (4.4 vs 4.1). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
      Do Nessus and Tenable.io offer a free trial?
      Nessus offers a free trial. Tenable.io does not.
      What is the starting price of Nessus vs Tenable.io?
      Nessus starts at $2,790 /Year. Tenable.io starts at $2,275.
      What are the top alternatives to Nessus?
      Top alternatives to Nessus include Tenable.io, BeyondTrust Vulnerability Management, Qualys VM, Microsoft Threat Vulnerability Management, Flexera Software Vulnerability Management.
      What are the top alternatives to Tenable.io?
      Top alternatives to Tenable.io include InsightVM, BeyondTrust Vulnerability Management, Qualys VM, Nessus, Microsoft Threat Vulnerability Management.

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