# AppCheck Infrastructure Scanner vs Nessus Professional: side-by-side comparison (2026)

[AppCheck Infrastructure Scanner](https://cybersectools.com/tools/appcheck-infrastructure-scanner) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [AppCheck](https://cybersectools.com/companies/appcheck). [Nessus Professional](https://cybersectools.com/tools/nessus-professional) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Tenable](https://cybersectools.com/companies/tenable). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | AppCheck Infrastructure Scanner | Nessus Professional |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Vulnerability Assessment | Vulnerability Assessment |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | AppCheck | Tenable |
| Headquarters | – | – |

### Use cases and capabilities

| | AppCheck Infrastructure Scanner | Nessus Professional |
|---|---|---|
| CVE | Yes | Yes |
| Infrastructure | Yes | – |
| RBAC | Yes | – |
| Vulnerability | – | Yes |
| Security Scanning | – | Yes |
| Penetration Testing Framework | – | Yes |
| NIST | – | Yes |
| PCI DSS | – | Yes |
| CIS | – | Yes |
| Network Scanning | – | Yes |
| VAPT | – | Yes |

### Core features

**AppCheck Infrastructure Scanner**

10 features listed. Sign in on the page to see them.

**Nessus Professional**

10 features listed. Sign in on the page to see them.

### Integrations

**AppCheck Infrastructure Scanner**

2 integrations listed. Sign in on the page to see them.

**Nessus Professional**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [AppCheck Infrastructure Scanner](https://cybersectools.com/tools/appcheck-infrastructure-scanner) fits if you want a cloud product.
- [Nessus Professional](https://cybersectools.com/tools/nessus-professional) fits if you need to run it on your own servers and you are a startup.

## AppCheck Infrastructure Scanner vs Nessus Professional FAQ

Common questions when comparing AppCheck Infrastructure Scanner vs Nessus Professional for vulnerability assessment.

### What is the difference between AppCheck Infrastructure Scanner and Nessus Professional?

**AppCheck Infrastructure Scanner**: Infrastructure vulnerability scanner for networks, data centers, and cloud, built by AppCheck.

**Nessus Professional**: Vulnerability scanner for assessing networks, systems, and apps for security flaws, built by Tenable.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes AppCheck Infrastructure Scanner and Nessus Professional?

**AppCheck Infrastructure Scanner** is made by AppCheck. **Nessus Professional** is made by Tenable. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is AppCheck Infrastructure Scanner a good alternative to Nessus Professional?

Often, yes. AppCheck Infrastructure Scanner and Nessus Professional are both Vulnerability Assessment products, and both cover CVE. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [AppCheck Infrastructure Scanner vs Webray RayScan](https://cybersectools.com/compare/appcheck-infrastructure-scanner-vs-webray-rayscan)
- [AppCheck Infrastructure Scanner vs Mondoo CIS Benchmarks & Security Policies](https://cybersectools.com/compare/appcheck-infrastructure-scanner-vs-mondoo-cis-benchmarks-and-security-policies)
- [AppCheck Infrastructure Scanner vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/appcheck-infrastructure-scanner-vs-positive-technologies-xspider-pro)
- [Nessus Professional vs Webray RayScan](https://cybersectools.com/compare/nessus-professional-vs-webray-rayscan)
- [Nessus Professional vs Mondoo CIS Benchmarks & Security Policies](https://cybersectools.com/compare/mondoo-cis-benchmarks-and-security-policies-vs-nessus-professional)
- [Nessus Professional vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/nessus-professional-vs-positive-technologies-xspider-pro)

## Alternatives to each

- [See all AppCheck Infrastructure Scanner alternatives](https://cybersectools.com/alternatives/appcheck-infrastructure-scanner)
- [See all Nessus Professional alternatives](https://cybersectools.com/alternatives/nessus-professional)

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Source: https://cybersectools.com/compare/appcheck-infrastructure-scanner-vs-nessus-professional

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/appcheck-infrastructure-scanner.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on AppCheck Infrastructure Scanner and Nessus Professional: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md