Nessus vs Acunetix Comparison
Nessus
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…
Acunetix
Starting at Contact for pricing
- Large Enterprises
- Medium Business
Acunetix Web Vulnerability Scanner is a tool that tests websites and web applications in order to find out if they are vulnerable to attacks in real time. It tests for SQL Injections, XSS vulnerabilities and many more. A…
Nessus leads on user satisfaction with a 4.4-star rating across 580 reviews.
Nessus vs Acunetix — at a glance
| Feature | Nessus | Acunetix |
|---|---|---|
| Rating | 4.4 / 5 | 4.1 / 5 |
| Reviews | 580 | 119 |
| Starting price | $2,790 /Year | Contact for pricing |
| Free trial | Yes | No |
| Free version | No | No |
| Best for | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business |
| Category | Vulnerability Management Software | Website Security Software |
| Platforms | SaaS/Web/Cloud, Installed - Windows, Installed - Mac | SaaS/Web/Cloud |
| API | — | — |
| Support modes | 24/7 (Live rep), Online | Business Hours |
| Certifications | — | GDPR |
| Data residency | US | Global |
Key differences between Nessus and Acunetix
- Pricing: Nessus starts at $2,790 /Year. Acunetix pricing is not publicly listed.
- Free trial: Nessus offers a free trial; Acunetix does not.
- User satisfaction: Nessus scores higher with a 4.4-star average.
- Deployment: Nessus supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac; Acunetix supports SaaS/Web/Cloud.
Nessus vs Acunetix — find the better fit before you commit.
Which tool fits your team best
Which is actually cheaper for your team size
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.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
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Biggest differences
Start here before you go deeper into features.
Best for comprehensive, flexible vulnerability scanning across diverse IT environments.
- 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.
- You need extensive third-party integrations beyond core vulnerability scanning capabilities.
- Your workflows demand highly customizable reporting without complex setup or cumbersome configuration.
Best for accurate, real-time web vulnerability scanning across all website sizes.
- You need precise detection of SQL Injection, XSS, and other web vulnerabilities.
- Your team includes security analysts or DevOps who can configure and interpret scans.
- You require continuous, real-time vulnerability assessment for compliance and data protection.
- Your organization lacks dedicated security expertise to manage and analyze scan results.
- You need a free or open-source vulnerability scanner with transparent pricing.
Nessus: Best for comprehensive, flexible vulnerability scanning across diverse IT environments. Acunetix: Best for accurate, real-time web vulnerability scanning across all website sizes.
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 | Acunetix Web Vulnerability Scanner is a tool that tests websites and web applications in order to find out if they are vulnerable to attacks in real time. It tests for SQL Injections, XSS ... Read More about Acunetix |
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Entry Level Pricing |
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Free Trial Availability |
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User RatingsBased on verified Spotsaas reviews | ||
Best Company Size | Small BusinessLarge Enterprises | Small BusinessLarge Enterprises |
Get pricing help | Get pricing help |
Software Demo
Demo |  Acunetix has not given any software demo yet If you're the owner of this profile, add your demo.Contact us |
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Compare Nessus and Acunetix 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.
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Other Details
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
GDPR | — | ✓ Yes |
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Data Encryption | — | ✓ Yes |
Audit Logs | — | ✓ Yes |
Data Residency | 🇺🇸 US | 🌐 Global |
Nessus User Reviews & Rating Comparison
User Ratings | 4.1 (based on 119 reviews) | |
|---|---|---|
Rating Distribution | ||
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
Common complaints
| Buyer sentiment Users generally appreciate Acunetix for its accuracy and comprehensive vulnerability detection but note concerns about pricing transparency and complexity. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product |
List of Customers
Customers |  VMware  DocuSign  American Eagle Outfitters | No Customers information available. |
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Media and Screenshots
Screenshots |  5 Screenshots |  5 Screenshots |
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Videos |  3 Videos | No videos available. |
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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 Acunetix?
- 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 Acunetix offer a free trial?
- Nessus offers a free trial. Acunetix does not.
- What is the starting price of Nessus vs Acunetix?
- Nessus starts at $2,790 /Year. Acunetix starts at Contact for pricing.
- 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 Acunetix?
- Top alternatives to Acunetix include Hide My WP Ghost, CWIS Security Antivirus Scanner, Detectify, Stryker, Beagle Security.