AppSecEngineer vs Nessus Comparison
AppSecEngineer
Starting at $33.25 /Month
- Free Trial
- Large Enterprises
- Medium Business
AppSecEngineer is the world's most comprehensive Application Security Training Platform. It provides specialized knowledge in Cloud Security, Kubernetes, DevSecOps, and more. With an interactive learning approach, studen…
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…
Nessus leads on user satisfaction with a 4.4-star rating across 580 reviews.
AppSecEngineer vs Nessus — at a glance
| Feature | AppSecEngineer | Nessus |
|---|---|---|
| Rating | — | 4.4 / 5 |
| Reviews | — | 580 |
| Starting price | $33.25 /Month | $2,790 /Year |
| Free trial | Yes | Yes |
| Free version | No | No |
| Best for | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business |
| Category | Vulnerability Management Software | Vulnerability Management Software |
| Platforms | SaaS/Web/Cloud | SaaS/Web/Cloud, Installed - Windows, Installed - Mac |
| API | Available | — |
| Support modes | Online | 24/7 (Live rep), Online |
| Data residency | — | US |
Key differences between AppSecEngineer and Nessus
- Pricing: AppSecEngineer starts at $33.25 /Month, while Nessus starts at $2,790 /Year.
- Deployment: AppSecEngineer supports SaaS/Web/Cloud; Nessus supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac.
AppSecEngineer vs Nessus — 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
Talk to an expert Talk to an expert |
Free PDF comparison
Download this AppSecEngineer vs Nessus comparison
Get the full side-by-side as a PDF — these picks plus the top Vulnerability Management Software tools, with verified ratings, pricing and features.
- Side-by-side on pricing, features & ratings
- Plus the category top 10, scored & ranked
- Emailed to you — no on-screen download
No file downloads on screen — we email it to you. One-click unsubscribe anytime.
Biggest differences
Start here before you go deeper into features.
Best for comprehensive, customizable application security training and skill development.
- You need specialized training in Cloud Security, Kubernetes, and DevSecOps.
- Your team consists of security engineers, DevOps, or IT compliance officers.
- You want an interactive learning platform tailored to individual learning needs.
- You require automated vulnerability scanning and management tools.
- You need out-of-the-box compliance reporting or transparent pricing information.
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.
AppSecEngineer: Best for comprehensive, customizable application security training and skill development. Nessus: Best for comprehensive, flexible vulnerability scanning across diverse IT environments.
Description | AppSecEngineer is the world's most comprehensive Application Security Training Platform. It provides specialized knowledge in Cloud Security, Kubernetes, DevSecOps, and more. With an ... Read More about AppSecEngineer | 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 |
|---|---|---|
Entry Level Pricing |
|
|
Free Trial Availability | ||
User RatingsBased on verified Spotsaas reviews | ||
Best Company Size | Medium BusinessLarge Enterprises | Small BusinessLarge Enterprises |
Get pricing help | Get pricing help |
Software Demo
Demo |
|---|
Need a second opinion?
Get shortlist help from a software advisor
Share your priorities, budget, and team needs, and we’ll help you narrow the options and understand the tradeoffs before you talk to vendors.
- Independent advice — matched to your business
- Understand the tradeoffs before you talk to vendors
- Free 15-min call with a software advisor.
Step 1 of 4
How big is your team?
We tailor recommendations to companies your size.
How do AppSecEngineer and Nessus Compare on Features?
Total Features | 2 Features | 6 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare AppSecEngineer and Nessus 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 |
|
|
Pricing Plans |
|
|
Pricing Page |  |  |
Other Details
Organization Types supported |
|
|
|---|---|---|
Platforms Supported |
|
|
Modes of support |
|
|
API Support |
|
|
Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
Data Residency | — | 🇺🇸 US |
|---|
AppSecEngineer User Reviews & Rating Comparison
User Ratings | No reviews available for the product | |
|---|---|---|
Rating Distribution | No reviews available for this product | |
Spotsaas Editor’s POV generated by AI | Buyer sentiment No public user reviews or ratings available to assess buyer sentiment. What buyers like
Common complaints
| 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
|
Pros and Cons |
|
|
Positive Reviews | No reviews available for the product | No reviews available for the product |
List of Customers
Customers |  blackhat  CODEBLUE  DEFCON |  VMware  DocuSign  American Eagle Outfitters |
|---|
Media and Screenshots
Screenshots | No screenshots available. |  5 Screenshots |
|---|---|---|
Videos |  2 Videos |  3 Videos |
Top Alternatives to AppSecEngineer and Nessus in 2026
Alternatives |
|---|
Add another option to compare side by side
Search by product name to compare pricing, fit, and buyer feedback in one view.Compare similar software options
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, AppSecEngineer or Nessus?
- Nessus edges out the other on user ratings (4.4 vs -1.0). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do AppSecEngineer and Nessus offer a free trial?
- Yes, both AppSecEngineer and Nessus offer a free trial.
- What is the starting price of AppSecEngineer vs Nessus?
- AppSecEngineer starts at $33.25 /Month. Nessus starts at $2,790 /Year.
- What are the top alternatives to AppSecEngineer?
- Top alternatives to AppSecEngineer include AppOmni, JupiterOne, Qualified, Secure Code Warrior, Workvivo.
- 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.