# Harbinger vs iCOUNTER CTOS: side-by-side comparison (2026)

[Harbinger](https://cybersectools.com/tools/harbinger) is a free [threat intel platforms](https://cybersectools.com/categories/tip) solution. [iCOUNTER CTOS](https://cybersectools.com/tools/icounter-ctos) is a commercial [threat intel platforms](https://cybersectools.com/categories/tip) solution by [iCOUNTER](https://cybersectools.com/companies/icounter). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Threat Intelligence Platform Solutions for Business](https://cybersectools.com/shortlists/best-threat-intelligence-platforms) picks Recorded Future Threat Intelligence, Google Threat Intelligence, CrowdStrike Falcon Adversary Intelligence and 4 more.

## Side-by-side comparison

| | Harbinger | iCOUNTER CTOS |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Threat Intel Platforms | Threat Intel Platforms |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | 83 | – |
| Last commit | Dec 2015 | – |
| Company | – | iCOUNTER |
| Headquarters | – | – |

### Use cases and capabilities

| | Harbinger | iCOUNTER CTOS |
|---|---|---|
| Cyber Threat Intelligence | Yes | Yes |
| Third Party Security | – | Yes |
| APT | – | Yes |
| Threat Actors | – | Yes |
| IOC | – | Yes |
| Threat Analysis | – | Yes |
| Vulnerability Intelligence | – | Yes |
| Supply Chain Security | – | Yes |
| Threat Feed | – | Yes |

### Core features

**Harbinger**

No features listed.

**iCOUNTER CTOS**

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

### Integrations

**Harbinger**

No integrations listed.

**iCOUNTER CTOS**

1 integration 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.

- [Harbinger](https://cybersectools.com/tools/harbinger) fits if you need to run it on your own servers, you are a startup or a small business, you need a free product and you want an open-source product.
- [iCOUNTER CTOS](https://cybersectools.com/tools/icounter-ctos) fits if you want a cloud product.

## Harbinger vs iCOUNTER CTOS FAQ

Common questions when comparing Harbinger vs iCOUNTER CTOS for threat intel platforms.

### What is the difference between Harbinger and iCOUNTER CTOS?

**Harbinger**: A threat intelligence domain/IP/hash threat feeds checker that checks IPVoid, URLVoid, Virustotal, and Cymon.

**iCOUNTER CTOS**: Threat intel & TPRM platform detecting adversary intent before exploitation, built by iCOUNTER.

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

### Who makes Harbinger and iCOUNTER CTOS?

**Harbinger** is open-source with 83 GitHub stars. **iCOUNTER CTOS** is made by iCOUNTER. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Harbinger a good alternative to iCOUNTER CTOS?

Often, yes. Harbinger and iCOUNTER CTOS are both Threat Intel Platforms products, and both cover Cyber Threat Intelligence. Key differences: Harbinger is Free while iCOUNTER CTOS is Commercial, Harbinger is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Harbinger vs Cypho](https://cybersectools.com/compare/cypho-vs-harbinger)
- [Harbinger vs Loginsoft VuInerability Intelligence LOVI](https://cybersectools.com/compare/harbinger-vs-lovi)
- [Harbinger vs Cytellite Threat Intelligence](https://cybersectools.com/compare/cytellite-threat-intelligence-vs-harbinger)
- [iCOUNTER CTOS vs Cypho](https://cybersectools.com/compare/cypho-vs-icounter-ctos)
- [iCOUNTER CTOS vs Loginsoft VuInerability Intelligence LOVI](https://cybersectools.com/compare/icounter-ctos-vs-lovi)
- [iCOUNTER CTOS vs Cytellite Threat Intelligence](https://cybersectools.com/compare/cytellite-threat-intelligence-vs-icounter-ctos)

## Alternatives to each

- [See all Harbinger alternatives](https://cybersectools.com/alternatives/harbinger)
- [See all iCOUNTER CTOS alternatives](https://cybersectools.com/alternatives/icounter-ctos)

---

Source: https://cybersectools.com/compare/harbinger-vs-icounter-ctos

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

More on Harbinger and iCOUNTER CTOS: 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