# CalCom Hardening Suite (CHS) vs Zentara AVAS: side-by-side comparison (2026)

[CalCom Hardening Suite (CHS)](https://cybersectools.com/tools/calcom-hardening-suite-chs) is a commercial [workload protection](https://cybersectools.com/categories/workload-protection) solution by [CalCom Software](https://cybersectools.com/companies/calcom-software). [Zentara AVAS](https://cybersectools.com/tools/zentara-avas) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Zentara](https://cybersectools.com/companies/zentara). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | CalCom Hardening Suite (CHS) | Zentara AVAS |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Workload Protection | Vulnerability Assessment |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | CalCom Software | Zentara |
| Headquarters | – | – |

### Use cases and capabilities

| | CalCom Hardening Suite (CHS) | Zentara AVAS |
|---|---|---|
| Security Hardening | Yes | – |
| Security Configuration | Yes | – |
| Configuration Management | Yes | – |
| Windows Security | Yes | – |
| Security Policy | Yes | – |
| Linux | Yes | – |
| CVE | – | Yes |
| Vulnerability | – | Yes |
| Vulnerability Prioritization | – | Yes |
| Zero Day | – | Yes |
| Natural Language Processing | – | Yes |
| Security Scanning | – | Yes |
| OWASP | – | Yes |
| NIST | – | Yes |
| Cloud Native | – | Yes |
| Threat Analysis | – | Yes |

### Core features

**CalCom Hardening Suite (CHS)**

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

**Zentara AVAS**

1 feature listed. Sign in on the page to see them.

### Integrations

**CalCom Hardening Suite (CHS)**

No integrations listed.

**Zentara AVAS**

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

## Which one fits you

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

- [CalCom Hardening Suite (CHS)](https://cybersectools.com/tools/calcom-hardening-suite-chs) fits if you need to run it on your own servers.
- [Zentara AVAS](https://cybersectools.com/tools/zentara-avas) fits if you want a cloud product.

## CalCom Hardening Suite (CHS) vs Zentara AVAS FAQ

Common questions when comparing CalCom Hardening Suite (CHS) vs Zentara AVAS for workload protection.

### What is the difference between CalCom Hardening Suite (CHS) and Zentara AVAS?

**CalCom Hardening Suite (CHS)**: Automates server hardening with zero-downtime policy enforcement for Windows & Linux. Built by CalCom Software.

**Zentara AVAS**: Built by Zentara.

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

### Who makes CalCom Hardening Suite (CHS) and Zentara AVAS?

**CalCom Hardening Suite (CHS)** is made by CalCom Software. **Zentara AVAS** is made by Zentara. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is CalCom Hardening Suite (CHS) a good alternative to Zentara AVAS?

In part. CalCom Hardening Suite (CHS) and Zentara AVAS are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CalCom Hardening Suite (CHS) vs CSS for IIS](https://cybersectools.com/compare/calcom-hardening-suite-chs-vs-css-for-iis)
- [CalCom Hardening Suite (CHS) vs Bitdefender GravityZone Cloud and Server Security](https://cybersectools.com/compare/bitdefender-gravityzone-cloud-and-server-security-vs-calcom-hardening-suite-chs)
- [CalCom Hardening Suite (CHS) vs Codenotary Guardian](https://cybersectools.com/compare/calcom-hardening-suite-chs-vs-codenotary-guardian)
- [Zentara AVAS vs CSS for IIS](https://cybersectools.com/compare/css-for-iis-vs-zentara-avas)
- [Zentara AVAS vs Bitdefender GravityZone Cloud and Server Security](https://cybersectools.com/compare/bitdefender-gravityzone-cloud-and-server-security-vs-zentara-avas)
- [Zentara AVAS vs Codenotary Guardian](https://cybersectools.com/compare/codenotary-guardian-vs-zentara-avas)

## Alternatives to each

- [See all CalCom Hardening Suite (CHS) alternatives](https://cybersectools.com/alternatives/calcom-hardening-suite-chs)
- [See all Zentara AVAS alternatives](https://cybersectools.com/alternatives/zentara-avas)

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Source: https://cybersectools.com/compare/calcom-hardening-suite-chs-vs-zentara-avas

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

More on CalCom Hardening Suite (CHS) and Zentara AVAS: 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