App comparison
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Nessus
5
65
4
26
3
2
2
0
1
0
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Vulnerability assessment solution for security practitioners
Last updated: July 2026
Nessus Alternatives & Competitors (2026)
Top 6 free alternatives
Aikido Security
Unified cybersecurity software
0.5
Value for money
Starting price
0.4
Functionality
Application Security
5/5
Access Controls/Permissions
N/A
Activity Monitoring
N/A
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
Red Sentry
Human-Led Penetration Testing, Done Right
0.2
Value for money
Starting price
Functionality
Access Controls/Permissions
5/5
API
5/5
Automatic Scans
5/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
UserWay Accessibility Widget
Website accessibility widget & audit reports for compliance
0.1
Value for money
Starting price
0.2
Functionality
Collaboration Tools
5/5
Accessibility Statement Generator
4.7/5
AI/Machine Learning
4.7/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
Invicti
Proof-based application security testing platform
0.3
Value for money
No pricing info
Starting price
0.2
Functionality
Activity Dashboard
5/5
Alerts/Notifications
4.5/5
Asset Discovery
4.5/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.1
Value for money
No pricing info
Starting price
0.1
Functionality
Anomaly/Malware Detection
5/5
Assessment Management
5/5
Access Controls/Permissions
4.9/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.4
Value for money
Starting price
0.1
Functionality
AI/Machine Learning
5/5
Asset Discovery
4.7/5
Alerts/Notifications
4.6/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
Value for money
Starting price
0.2
Functionality
Activity Dashboard
4.8/5
Application Security
4.7/5
Automatic Patch Deployment
4.6/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.5
Value for money
No pricing info
Starting price
0.4
Functionality
Alerts/Notifications
1/5
API
1/5
Access Controls/Permissions
N/A
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.6
Value for money
No pricing info
Starting price
0.4
Functionality
Audit Management
5/5
Activity Dashboard
4.6/5
Compliance Management
4.6/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.4
Value for money
Starting price
0.4
Functionality
Access Controls/Permissions
5/5
Activity Dashboard
5/5
Alerts/Notifications
5/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.1
Value for money
No pricing info
Starting price
Functionality
Access Controls/Permissions
4.8/5
Anti Spam
4.7/5
Allow/Block List
4.5/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.2
Value for money
Starting price
0.5
Functionality
Activity Tracking
4.5/5
Asset Discovery
4.5/5
Alerts/Notifications
4.3/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.4
Value for money
Starting price
0.3
Functionality
Activity Dashboard
5/5
API
5/5
Authentication
5/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.3
Value for money
Starting price
0.2
Functionality
Alerts/Notifications
5/5
Anti Virus
5/5
Activity Monitoring
N/A
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.5
Value for money
No pricing info
Starting price
0.4
Functionality
Alerts/Notifications
5/5
Compliance Management
5/5
Endpoint Management
5/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.2
Value for money
Starting price
0.1
Functionality
Alerts/Notifications
5/5
API
4.5/5
Anomaly/Malware Detection
4/5
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
0.2
Value for money
Starting price
0.3
Functionality
Access Controls/Permissions
N/A
Authentication
N/A
Endpoint Protection
N/A
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
Value for money
No pricing info
Starting price
0.4
Functionality
Anomaly/Malware Detection
5/5
Approval Process Control
5/5
Access Control
N/A
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
Value for money
Starting price
0.6
Functionality
Network Scanning
4.5/5
Automatic Scans
N/A
Cross-Site Scripting
N/A
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
4.5
Value for money
No pricing info
Starting price
4.6
Functionality
Access Controls/Permissions
N/A
Activity Monitoring
N/A
Activity Tracking
N/A
Top Features
API
4.8/5
Asset Discovery
4.7/5
Assessment Management
4.5/5
