# Invicti Web + API (formerly Acunetix) vs Tenable Nessus Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Tenable Nessus excels in overall user satisfaction, reflected in its higher G2 Score of 83.95 compared to Acunetix by Invicti's score of 46.61. Users appreciate its comprehensive and accurate vulnerability detection, which helps identify system flaws effectively.
- **Users say** that Acunetix by Invicti stands out for its **ease of use** and quick implementation. Reviewers highlight its intuitive interface and seamless integration with CI/CD processes, making it a favorite for developers looking for efficient vulnerability scanning.
- **According to verified reviews** , Tenable Nessus is praised for its **actionable results** and constant updates, which keep the tool relevant and effective. Users find it easy to learn and use, allowing for swift adoption without extensive training.
- **Reviewers mention** that while Acunetix by Invicti offers powerful vulnerability detection, it sometimes struggles with specific workflow needs, leading to configuration challenges. However, its ability to generate comprehensive reports and provide prompt remediation guidance is frequently noted.
- **Users highlight** that Tenable Nessus has a strong market presence, with a significant number of reviews (284) supporting its reliability. This extensive feedback contributes to its reputation as a trusted tool in the vulnerability scanning space.
- **G2 reviewers note** that Acunetix by Invicti shines in its proactive assistance, receiving high praise for its support features. Users appreciate the tool's ability to deliver precise scanning results, which helps in identifying vulnerabilities like SQL injection effectively.



---
## Frequently Asked Questions

### What is the difference between Acunetix by Invicti vs Tenable Nessus?

Tenable Nessus stands out for higher reviewer satisfaction across ratings, support, and setup, while Acunetix by Invicti is noted for its issue tracking and manual testing features.

| | [Acunetix by Invicti](https://www.g2.com/products/acunetix-by-invicti/reviews) | [Tenable Nessus](https://www.g2.com/products/tenable-nessus/reviews) |
| --- | --- | --- |
| G2 Rating (reviews) | 4.1/5 (105 reviews) | 4.5/5 (305 reviews) |
| Largest Segment | Enterprise | Mid-Market |
| Ease of Setup score | 8.5 | 8.8 |
| Quality of Support score | 7.8 | 8.4 |
| Top Reviewer-Cited Strength | Vulnerability Detection (7 all-time mentions) | Vulnerability Identification (20 all-time mentions) |



### How do the pricing models of Acunetix by Invicti and Tenable Nessus compare?

Tenable Nessus is rated higher for value, with a stronger Price/Cost satisfaction score than Acunetix by Invicti.

- **Acunetix by Invicti:** In recent reviews, several buyers cite high and increasing costs, restrictive licensing, and less flexibility for scaling or switching targets.
- **Tenable Nessus:** Reviewers describe the pricing as competitive and within budget, though some note rising costs over time; satisfaction with value remains higher than Acunetix by Invicti.
- **Switching reasons:** Recent Acunetix by Invicti reviewers mention switching due to aggressive price increases and inflexible licensing.



### What are the best alternatives to Acunetix by Invicti and Tenable Nessus?

The top three alternatives to Acunetix by Invicti and Tenable Nessus are Intruder, Detectify, and Invicti.

| Product | G2 Rating (reviews) | Top Reviewer-Cited Strength |
| --- | --- | --- |
| [Acunetix by Invicti](https://www.g2.com/products/acunetix-by-invicti/reviews) | 4.1/5 (105 reviews) | Vulnerability Detection |
| [Tenable Nessus](https://www.g2.com/products/tenable-nessus/reviews) | 4.5/5 (305 reviews) | Vulnerability Identification |
| [Intruder](https://www.g2.com/products/intruder/reviews) | 4.8/5 (209 reviews) | — |
| [Detectify](https://www.g2.com/products/detectify/reviews) | 4.5/5 (51 reviews) | — |
| [Invicti](https://www.g2.com/products/invicti/reviews) | 4.5/5 (72 reviews) | — |



### Which Dynamic Application Security Testing (DAST) features should I prioritize when comparing Acunetix by Invicti and Tenable Nessus?

Buyers should prioritize vulnerability detection accuracy, ease of use, integration capabilities, reporting quality, and automation when comparing Acunetix by Invicti and Tenable Nessus.

- **Vulnerability Detection Accuracy:** Acunetix by Invicti (7 all-time mentions), Tenable Nessus (18 all-time mentions).
- **Ease of Use:** Acunetix by Invicti (8.5/10), Tenable Nessus (8.9/10); all-time mentions: Acunetix by Invicti (6), Tenable Nessus (16).
- **Integration Capabilities:** Acunetix by Invicti (3 all-time mentions), Tenable Nessus (—).
- **Reporting Quality:** Acunetix by Invicti (4 all-time mentions), Tenable Nessus (—).
- **Automation:** Acunetix by Invicti (4 all-time mentions), Tenable Nessus (6 all-time mentions).



### What are the pros and cons of Acunetix by Invicti vs Tenable Nessus?

Tenable Nessus is strongest in vulnerability identification and ease of use, while Acunetix by Invicti is noted for vulnerability detection and integration capabilities.

- **Acunetix by Invicti strengths:** Vulnerability Detection (7 all-time mentions), Ease of Use (6), Security (5), Automation (4), Easy Integrations (4), Implementation Ease (4), Reporting Quality (4).
- **Acunetix by Invicti trade-offs:** Expensive (4), Complexity (3), Complex Setup (3), Slow Scanning (3), Difficult Customization (2).
- **Tenable Nessus strengths:** Vulnerability Identification (20), Vulnerability Detection (18), Ease of Use (16), Automated Scanning (15), Features (13), User Interface (13), Security (9), Scanning Technology (7), Automation (6), Customer Support (5).
- **Tenable Nessus trade-offs:** Slow Scanning (7), Expensive (6), Limited Features (6), Complexity (5), False Positives (5).



### Is Acunetix by Invicti or Tenable Nessus better for small businesses?

Tenable Nessus is the better fit for small businesses, with a larger share of mid-market and small-business reviewers and higher satisfaction scores.

- **Acunetix by Invicti:** Largest segment is Enterprise; reviewers in smaller organizations cite higher costs and licensing inflexibility as challenges.
- **Tenable Nessus:** Largest segment is Mid-Market; reviewers highlight ease of use, competitive pricing, and suitability for smaller teams.



### Which Dynamic Application Security Testing (DAST) platform has better integrations?

Acunetix by Invicti is favored for integrations, with reviewers citing integration capabilities and specific third-party tool support.

- **Acunetix by Invicti:** Jira integration mentioned in recent reviews; integration capabilities cited in 3 all-time reviews.
- **Tenable Nessus:** No specific third-party integrations cited in recent reviews.



### How do Acunetix by Invicti and Tenable Nessus compare on customer support?

Tenable Nessus outperforms Acunetix by Invicti on Quality of Support by more than 0.2 points, with scores of 8.4 vs 7.8.

- **Acunetix by Invicti:** Reviewers report mixed support experiences, with some citing slow or unresponsive support and others noting helpful responses for technical queries.
- **Tenable Nessus:** Reviewers consistently describe support as responsive, helpful, and quick to resolve issues.



### Which is easier to implement, Acunetix by Invicti or Tenable Nessus?

Tenable Nessus has a higher Ease of Setup score (8.8 vs 8.5), indicating it is easier to implement than Acunetix by Invicti.

- **Acunetix by Invicti:** Reviewers note that setup can be complex for first-time users, with some citing resource-intensive scans and configuration challenges.
- **Tenable Nessus:** Reviewers highlight straightforward deployment, intuitive interface, and quick initial setup, especially for standard scans.



### Which product has better False Positives?

Tenable Nessus is rated better for minimizing False Positives, with reviewers citing a lower false positive rate and more accurate results.

- **Acunetix by Invicti:** False positives are mentioned in several reviews, with some noting the need for manual verification; no all-time count provided.
- **Tenable Nessus:** False Positives cited in 5 all-time reviews; recent reviewers highlight low false positive rates and accurate vulnerability detection.



| | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Star Rating** | 4.1 out of 5 | 4.5 out of 5 | 
| **Total Reviews** | 105 | 312 | 

---
## Top Pros & Cons

### Invicti Web + API (formerly Acunetix)

Pros:
- Vulnerability Detection (7 reviews)
- Ease of Use (6 reviews)

Cons:
- Expensive (4 reviews)
- Complexity (3 reviews)

### Tenable Nessus

Pros:
- Vulnerability Identification (21 reviews)
- Vulnerability Detection (19 reviews)

Cons:
- Slow Scanning (8 reviews)
- Expensive (6 reviews)

---
## Ratings Comparison
| Rating | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
  | **Meets Requirements** | 8.3 (90 reviews) | 9.0 (257 reviews) | 
  | **Ease of Use** | 8.5 (91 reviews) | 8.9 (260 reviews) | 
  | **Ease of Setup** | 8.5 (66 reviews) | 8.8 (183 reviews) | 
  | **Ease of Admin** | 8.4 (60 reviews) | 8.9 (169 reviews) | 
  | **Quality of Support** | 7.8 (85 reviews) | 8.4 (237 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.2 (58 reviews) | 8.7 (157 reviews) | 
  | **Product Direction (% positive)** | 7.6 (89 reviews) | 8.9 (243 reviews) | 

---
## Pricing

### Invicti Web + API (formerly Acunetix)

#### Entry-Level Pricing

No pricing available

#### Free Trial

Yes

### Tenable Nessus

#### Entry-Level Pricing

Plan: Pro - 1 Year

Price: $3,390.00 1 License With One-Time Purchase

Description: 1-year license of the industry-leading vulnerability assessment solution.

Key Features:
- Automate your vulnerability scanning process

[Browse all 4 editions](https://www.g2.com/products/tenable-nessus/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Vulnerability Management

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | N/A | N/A |
| **Tenable Nessus** | N/A | N/A |

#### Additional Functionality

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Search/Filter** | Not enough data | Not enough data | 
| **Risk Management** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Certificate Assessment** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Incident Management** | Not enough data | Not enough data | 
| **Automated Containment** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Vulnerability Scanning** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Policy Management** | Not enough data | Not enough data | 
| **Asset Discovery** | Not enough data | Not enough data | 
| **Penetration Testing** | Not enough data | Not enough data | 
| **Runtime Container Security** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **Issue Tracking** | Not enough data | Not enough data | 
| **Threat Intelligence** | Not enough data | Not enough data | 
| **Patch Management** | Not enough data | Not enough data | 
| **Endpoint Management** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Vulnerability Management** | Not enough data | Not enough data | 
| **Goal Setting/Tracking** | Not enough data | Not enough data | 
| **Vulnerability Assessment** | Not enough data | Not enough data | 
| **Asset Tagging** | Not enough data | Not enough data | 
| **Assessment Management** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Vulnerability/Threat Prioritization** | Not enough data | Not enough data | 
| **Vulnerability Protection** | Not enough data | Not enough data | 
| **Risk Assessment** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **SQL Injections** | Not enough data | Not enough data | 

### Website Security

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | 8.0/10 | 36 |
| **Tenable Nessus** | N/A | N/A |

#### Administration

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Content Delivery** | Feature Not Available | Not enough data | 
| **Dashboard & Reporting** | 9.1 (31 reviews) | Not enough data | 
| **Alerting** | 8.4 (28 reviews) | Not enough data | 

#### Risk Analysis

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Blacklist and Whitelist** | Feature Not Available | Not enough data | 
| **Vulnerability Assessment** | 8.8 (31 reviews) | Not enough data | 
| **Security Auditing** | 8.3 (27 reviews) | Not enough data | 
| **Web-Application Security** | Not enough data | Not enough data | 

#### Threat Protection

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Firewall** | Feature Not Available | Not enough data | 
| **DDoS Protection** | 7.4 (21 reviews) | Not enough data | 
| **Anomaly/Malware Detection** | 7.6 (22 reviews) | Not enough data | 
| **Malware Removal** | Feature Not Available | Not enough data | 
| **Endpoint Protection** | Not enough data | Not enough data | 

#### Generative AI

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **AI Text Summarization** | 6.4 (6 reviews) | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **SQL Injections** | Not enough data | Not enough data | 
| **Load Balancing** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Vulnerability Scanning** | Not enough data | Not enough data | 
| **Threat Response** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Log Management** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 

### Penetration Testing

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | 7.8/10 | 36 |
| **Tenable Nessus** | N/A | N/A |

#### Administration

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **API** | 7.5 (25 reviews) | Not enough data | 
| **Extensibility** | 7.4 (26 reviews) | Not enough data | 
| **Reporting and Analytics** | 8.6 (32 reviews) | Not enough data | 

#### Analysis

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Issue Tracking** | 8.1 (28 reviews) | Not enough data | 
| **Reconnaissance** | 7.7 (31 reviews) | Not enough data | 
| **Vulnerability Scan** | 8.6 (33 reviews) | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **Automatic Scans** | Not enough data | Not enough data | 
| **SPA Scans** | Not enough data | Not enough data | 

#### Testing

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Command-Line Tools** | 6.5 (20 reviews) | Not enough data | 
| **Manual Testing** | 7.3 (24 reviews) | Not enough data | 
| **Test Automation** | 8.3 (28 reviews) | Not enough data | 
| **Performance and Reliability** | 8.1 (30 reviews) | Not enough data | 

#### Additional Functionality

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Network Mapping** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **SQL Injections** | Not enough data | Not enough data | 
| **Audit Management** | Not enough data | Not enough data | 
| **Threat Intelligence** | Not enough data | Not enough data | 
| **Assignment Management** | Not enough data | Not enough data | 
| **Integration Management** | Not enough data | Not enough data | 
| **User Management** | Not enough data | Not enough data | 
| **Asset Discovery** | Not enough data | Not enough data | 
| **Remediation Management** | Not enough data | Not enough data | 
| **Vulnerability Scanning** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Multi-User Collaboration** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Web-Application Security** | Not enough data | Not enough data | 
| **Vulnerability Assessment** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **Runtime Container Security** | Not enough data | Not enough data | 
| **Network Scanning** | Not enough data | Not enough data | 
| **Password Cracking** | Not enough data | Not enough data | 
| **Simulated Threat Attacks** | Not enough data | Not enough data | 
| **Certificates** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Cross-Site Scripting** | Not enough data | Not enough data | 
| **Exploit Frameworks** | Not enough data | Not enough data | 

### Dynamic Application Security Testing (DAST)

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | 8.0/10 | 32 |
| **Tenable Nessus** | N/A | N/A |

#### Administration

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **API / Integrations** | 7.9 (25 reviews) | Not enough data | 
| **Extensibility** | 7.6 (26 reviews) | Not enough data | 

#### Analysis

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Reporting and Analytics** | 8.4 (30 reviews) | Not enough data | 
| **Issue Tracking** | 7.9 (28 reviews) | Not enough data | 
| **Static Code Analysis** | Feature Not Available | Not enough data | 
| **Vulnerability Scan** | 8.7 (30 reviews) | Not enough data | 
| **Code Analysis** | 8.0 (22 reviews) | Not enough data | 

#### Testing

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Manual Testing** | 7.6 (23 reviews) | Not enough data | 
| **Test Automation** | 8.1 (29 reviews) | Not enough data | 
| **Compliance Testing** | 8.3 (24 reviews) | Not enough data | 
| **Black-Box Scanning** | 8.5 (28 reviews) | Not enough data | 
| **Detection Rate** | 8.7 (25 reviews) | Not enough data | 
| **False Positives** | 6.9 (27 reviews) | Not enough data | 

### Vulnerability Scanner

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | 8.3/10 | 39 |
| **Tenable Nessus** | 8.3/10 | 168 |

#### Performance

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Issue Tracking** | 8.2 (27 reviews) ✓ Verified | Feature Not Available | 
| **Detection Rate** | 8.5 (34 reviews) ✓ Verified | 8.9 (144 reviews) ✓ Verified | 
| **False Positives** | 6.9 (36 reviews) ✓ Verified | 6.7 (141 reviews) ✓ Verified | 
| **Automated Scans** | 8.6 (35 reviews) ✓ Verified | 9.0 (138 reviews) ✓ Verified | 
| **Anomaly/Malware Detection** | Not enough data | Not enough data | 

#### Network

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Compliance Testing** | 8.7 (28 reviews) ✓ Verified | 8.8 (137 reviews) ✓ Verified | 
| **Perimeter Scanning** | 8.6 (27 reviews) ✓ Verified | 8.9 (135 reviews) ✓ Verified | 
| **Configuration Monitoring** | 7.9 (24 reviews) ✓ Verified | 8.4 (111 reviews) ✓ Verified | 
| **Vulnerability Scanning** | Not enough data | 10.0 (6 reviews) | 
| **Source-Code Scanning** | Not enough data | Not enough data | 
| **Web Scanning** | Not enough data | Not enough data | 

#### Application

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Manual Application Testing** | 8.2 (27 reviews) ✓ Verified | Feature Not Available | 
| **Static Code Analysis** | 7.5 (23 reviews) ✓ Verified | 7.3 (84 reviews) | 
| **Black Box Testing** | 8.7 (33 reviews) ✓ Verified | 7.8 (103 reviews) | 
| **Risk Analysis** | Not enough data | Not enough data | 

#### Agentic AI - Vulnerability Scanner

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 8.1 (9 reviews) | 
| **Proactive Assistance** | 9.3 (5 reviews) | 7.9 (8 reviews) | 

#### Additional Functionality

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **SSL Security** | Not enough data | Not enough data | 
| **HIPAA Compliant** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Threat Response** | Not enough data | Not enough data | 
| **Endpoint Protection** | Not enough data | Not enough data | 
| **Maintenance Scheduling** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **Application Security** | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | 
| **Network Security** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Authentication** | Not enough data | Not enough data | 
| **Financial Data Protection** | Not enough data | Not enough data | 
| **Anti Virus** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **Virus Definition Update** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **VPN** | Not enough data | Not enough data | 
| **Audit Trail** | Not enough data | Not enough data | 
| **Anti Spam** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Data Visualization** | Not enough data | Not enough data | 
| **Alerts/Escalation** | Not enough data | Not enough data | 
| **Data Security** | Not enough data | Not enough data | 
| **Runtime Container Security** | Not enough data | Not enough data | 
| **Asset Discovery** | Not enough data | Not enough data | 
| **Threat Intelligence** | Not enough data | Not enough data | 
| **Vulnerability Protection** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Vulnerability/Threat Prioritization** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **SQL Injections** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Threat Protection** | Not enough data | Not enough data | 
| **Web-Application Security** | Not enough data | Not enough data | 
| **Password Protection** | Not enough data | Not enough data | 
| **Website Crawling** | Not enough data | Not enough data | 
| **Vulnerability Assessment** | Not enough data | Not enough data | 

### API Security

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | N/A | N/A |
| **Tenable Nessus** | N/A | N/A |

#### API Management 

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **API Discovery** | Not enough data | Not enough data | 
| **API Monitoring** | Not enough data | Not enough data | 
| **Reporting** | Not enough data | Not enough data | 
| **Change Management** | Not enough data | Not enough data | 

#### Security Testing

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Compliance Monitoring** | Not enough data | Not enough data | 
| **API Verification** | Not enough data | Not enough data | 
| **API Testing** | Not enough data | Not enough data | 

#### Security Management

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Security and Policy Enforcement** | Not enough data | Not enough data | 
| **Anomoly Detection** | Not enough data | Not enough data | 
| **Bot Detection** | Not enough data | Not enough data | 

### Attack Surface Management

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | N/A | N/A |
| **Tenable Nessus** | 8.3/10 | 6 |

#### Asset Management

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Asset Discovery** | Not enough data | 6.9 (6 reviews) | 
| **Shadow IT Detection** | Not enough data | 7.5 (6 reviews) | 
| **Change Management** | Not enough data | 4.7 (6 reviews) | 
| **Compliance Management** | Not enough data | Not enough data | 

#### Monitoring

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Gap Analysis** | Not enough data | 8.3 (6 reviews) | 
| **Vulnerability Intelligence** | Not enough data | 10.0 (6 reviews) | 
| **Compliance Monitoring** | Not enough data | 8.6 (6 reviews) | 
| **Continuous Monitoring** | Not enough data | 9.2 (6 reviews) | 
| **Server Monitoring** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 

#### Risk Management

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Risk-Prioritization** | Not enough data | 9.2 (6 reviews) | 
| **Reconnaissance** | Not enough data | 9.2 (6 reviews) | 
| **At-Risk Analysis** | Not enough data | 8.6 (6 reviews) | 
| **Threat Intelligence** | Not enough data | 9.4 (6 reviews) | 

#### Generative AI

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **AI Text Summarization** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **SSL Security** | Not enough data | Not enough data | 
| **HIPAA Compliant** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Threat Response** | Not enough data | Not enough data | 
| **Endpoint Protection** | Not enough data | Not enough data | 
| **Maintenance Scheduling** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **Application Security** | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | 
| **Network Security** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Authentication** | Not enough data | Not enough data | 
| **Financial Data Protection** | Not enough data | Not enough data | 
| **Anti Virus** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **Virus Definition Update** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **VPN** | Not enough data | Not enough data | 
| **Audit Trail** | Not enough data | Not enough data | 
| **Anti Spam** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Data Visualization** | Not enough data | Not enough data | 
| **Alerts/Escalation** | Not enough data | Not enough data | 
| **Data Security** | Not enough data | Not enough data | 

### Cloud Security

| Product | Score | Reviews |
|---|---|---|
| **Invicti Web + API (formerly Acunetix)** | N/A | N/A |
| **Tenable Nessus** | N/A | N/A |

#### Cloud Visibility

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Data Discovery** | Not enough data | Not enough data | 
| **Cloud Registry** | Not enough data | Not enough data | 
| **Cloud Gap Analytics** | Not enough data | Not enough data | 

#### Security

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Data Security** | Not enough data | Not enough data | 
| **Data loss Prevention** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Cloud Application Security** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 

#### Identity

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **SSO** | Not enough data | Not enough data | 
| **Governance** | Not enough data | Not enough data | 
| **User Analytics** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Visual Analytics** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Endpoint Management** | Not enough data | Not enough data | 
| **Intrusion Detection System** | Not enough data | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **HIPAA Compliant** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Two-Factor Authentication** | Not enough data | Not enough data | 
| **Data Visualization** | Not enough data | Not enough data | 
| **Risk Assessment** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 
| **Event Logs** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Audit Management** | Not enough data | Not enough data | 
| **Cloud Security Policy Management** | Not enough data | Not enough data | 
| **Vulnerability Protection** | Not enough data | Not enough data | 
| **Anti Virus** | Not enough data | Not enough data | 
| **Incident Management** | Not enough data | Not enough data | 
| **Threat Intelligence** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **User Management** | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | 
| **Vulnerability Scanning** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Status Tracking** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **Patch Management** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Cloud Encryption** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (2):** [Dynamic Application Security Testing (DAST) Software](https://www.g2.com/categories/dynamic-application-security-testing-dast), [Vulnerability Scanner Software](https://www.g2.com/categories/vulnerability-scanner)

**Unique to Invicti Web + API (formerly Acunetix) (2):** [Penetration Testing Tools](https://www.g2.com/categories/penetration-testing-tools), [Website Security Software](https://www.g2.com/categories/website-security)

**Unique to Tenable Nessus (2):** [ Attack Surface Management Software](https://www.g2.com/categories/attack-surface-management), [API Security Tools](https://www.g2.com/categories/api-security)


---
## Reviewer Demographics

### By Company Size

| Segment | Invicti Web + API (formerly Acunetix) | Tenable Nessus | 
|---|---|---|
| **Small-Business** | 26.0% | 25.8% | 
| **Mid-Market** | 33.0% | 40.3% | 
| **Enterprise** | 41.0% | 33.9% | 

### By Industry

#### Invicti Web + API (formerly Acunetix)

- **Information Technology and Services:** 21.0%
- **Computer Software:** 15.0%
- **Computer & Network Security:** 11.0%
- **Telecommunications:** 10.0%
- **Financial Services:** 6.0%
- **Banking:** 4.0%
- **Government Administration:** 3.0%
- **Security and Investigations:** 2.0%
- **Retail:** 2.0%
- **Real Estate:** 2.0%
- **Other:** 24.0%

#### Tenable Nessus

- **Information Technology and Services:** 24.8%
- **Computer & Network Security:** 17.0%
- **Financial Services:** 7.1%
- **Computer Software:** 5.8%
- **Banking:** 5.1%
- **Government Administration:** 3.7%
- **Higher Education:** 3.4%
- **Hospital & Health Care:** 2.4%
- **Telecommunications:** 2.0%
- **Education Management:** 2.0%
- **Other:** 26.5%

---
## Alternatives

### Alternatives to Invicti Web + API (formerly Acunetix)

- [Intruder](https://www.g2.com/products/intruder/reviews) — 4.8/5 stars (220 reviews)
- [Detectify](https://www.g2.com/products/detectify/reviews) — 4.5/5 stars (51 reviews)
- [Burp Suite](https://www.g2.com/products/burp-suite/reviews) — 4.8/5 stars (129 reviews)
- [Pentest-Tools.com](https://www.g2.com/products/pentest-tools-com/reviews) — 4.8/5 stars (109 reviews)
- [Veracode Application Security Platform](https://www.g2.com/products/veracode-application-security-platform/reviews) — 3.8/5 stars (26 reviews)
- [Beagle Security](https://www.g2.com/products/beagle-security/reviews) — 4.7/5 stars (88 reviews)
- [GitLab](https://www.g2.com/products/gitlab/reviews) — 4.5/5 stars (900 reviews)
- [Tenable Vulnerability Management](https://www.g2.com/products/tenable-vulnerability-management/reviews) — 4.5/5 stars (139 reviews)
- [HCL AppScan](https://www.g2.com/products/hcl-appscan/reviews) — 4.2/5 stars (105 reviews)
- [Wiz](https://www.g2.com/products/wiz-wiz/reviews) — 4.7/5 stars (845 reviews)

### Alternatives to Tenable Nessus

- [Intruder](https://www.g2.com/products/intruder/reviews) — 4.8/5 stars (220 reviews)
- [Invicti](https://www.g2.com/products/invicti/reviews) — 4.5/5 stars (72 reviews)
- [Detectify](https://www.g2.com/products/detectify/reviews) — 4.5/5 stars (51 reviews)
- [Wiz](https://www.g2.com/products/wiz-wiz/reviews) — 4.7/5 stars (845 reviews)
- [Burp Suite](https://www.g2.com/products/burp-suite/reviews) — 4.8/5 stars (129 reviews)
- [Pentest-Tools.com](https://www.g2.com/products/pentest-tools-com/reviews) — 4.8/5 stars (109 reviews)
- [Orca Security](https://www.g2.com/products/orca-security/reviews) — 4.7/5 stars (314 reviews)
- [Veracode Application Security Platform](https://www.g2.com/products/veracode-application-security-platform/reviews) — 3.8/5 stars (26 reviews)
- [Astra Pentest](https://www.g2.com/products/astra-pentest/reviews) — 4.6/5 stars (248 reviews)
- [APPCHECK](https://www.g2.com/products/appcheck/reviews) — 4.7/5 stars (68 reviews)

---
## Top Discussions

### Invicti Web + API (formerly Acunetix)

- Title: [Does Acunetix Integrate with Web Application Firewalls?](https://www.g2.com/discussions/waf-integration) — 1 comment, 1 upvote
  > **Top comment:** "Yes, Acunetix Premium supports WAFs integrations with: 
Imperva SecureSphere
F5 BIG-IP Application Security Manager
FortiWeb WAF
Citrix WAF 

For more..."

### Tenable Nessus

- Title: [Is there a free version of Nessus?](https://www.g2.com/discussions/is-there-a-free-version-of-nessus) — 2 comments
  > **Top comment:** "30 /15 days trail is available "
- Title: [What does Nessus Professional scan for?](https://www.g2.com/discussions/about-nessus-2b3f6c8f-4cde-460a-bd61-f2527f0cdb45) — 2 comments, 1 upvote
  > **Top comment:** "It scans the system for  different vulnerabilities depending on what policy you want to scan the system with (like Internal PCI, Policy Compliance, SCAP,..."
- Title: [What types of devices can Nessus Professional scan?](https://www.g2.com/discussions/device-types-78d9c056-eb92-4435-aad4-32afa6a1a445) — 2 comments, 1 upvote
  > **Top comment:** "Windows PCs/servers , Linux systems/servers, Mobiles, IPMI devices like iLO, iDRAC, network switches, storage arrays, etc."
- Title: [How many IP Addresses can I scan?](https://www.g2.com/discussions/ip-addresses-b6ef755d-8e1e-4949-818a-ec228e8ac779) — 2 comments, 1 upvote
  > **Top comment:** "It depends on your license."
- Title: [What do I need to run Nessus professional?](https://www.g2.com/discussions/environment-c71784d4-2685-42a7-870f-56620a4bcb97) — 2 comments, 1 upvote
  > **Top comment:** "you don't need any special requirements you can run on any windows or Linux machine without any hazel."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/invicti-web-api-formerly-acunetix-vs-tenable-nessus)