# Horos

- **Canonical URI:** https://www.vioscale.ai/software/horos
- **Category:** Medical Imaging Pacs
- **Homepage:** https://horosproject.org
- **Also known as:** horos
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:33:08.928Z

## Vioscale score

**50.5 / 100**, confidence 24% (low). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 45.8 | 0.07844444444444446 | 3.6 | ✓ |
| repo_stars | 46.6 | 0.026 | 1.2 | ✓ |
| integrations | 0 | 0.07033333333333334 | 0 | - |
| dependent_projects | 0 | 0.063 | 0 | ✓ |
| dev_activity | 63.1 | 0.094 | 5.9 | ✓ |
| release_cadence | 97.8 | 0.052 | 5.1 | ✓ |
| security_posture | 0 | 0.073 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 0 | 0.042 | 0 | - |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

_As of 2026-08-21, [verify at source](https://horosproject.org). Independently observed._

Free · Free tier

> Free and open-source

## About

Horos is a no-cost, open-source viewer for diagnostic medical images on Apple computers. It provides secure cloud-based study sharing and has been developed and maintained by a global open-source community.

_Independently observed._

## Platform & deployment

- **Platforms:** macOS
- **Deployment:** Cloud / SaaS

## Capabilities

_The capabilities that matter for Medical Imaging Pacs. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Capabilities** | |
| Deployment model | Native desktop app |
| DICOM protocol native support | ✓ |
| Vendor neutral archive vna storage | - |
| 3d volume multi planar reconstruction mpr | - |
| Fda cleared for primary diagnosis | - |
| AI computer aided detection cad triage | - |
| HL7 FHIR EHR integration | - |
| Non DICOM visible light photo management | - |
| Secure patient image sharing portal | ✓ |
| HIPAA baas business associate agreement | - |
| SOC2 type ii | - |
| ISO 27001 | - |
| Pricing model | Free open source |

## Release history

| Version | Date | Type |
|---|---|---|
| [v20.3.13](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.13) | 2026-08-22 | stable |
| [v20.3.12](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.12) | 2026-08-21 | stable |
| [v20.3.11](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.11) | 2026-08-18 | stable |
| [v20.3.10](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.10) | 2026-08-14 | stable |
| [v20.3.9](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.9) | 2026-08-04 | stable |
| [v20.3.8](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.8) | 2026-08-03 | stable |
| [v20.3.7](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.7) | 2026-07-22 | stable |
| [v20.3.6](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.6) | 2026-06-27 | stable |
| [v20.3.5](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.5) | 2026-06-17 | stable |
| [v20.3.4](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.4) | 2026-06-11 | stable |
| [v20.3.3](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.3) | 2026-05-13 | stable |
| [v20.3.2](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.2) | 2026-05-03 | stable |
| [v20.3.1](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.1) | 2026-05-01 | stable |
| [v20.3.0](https://github.com/GrokImageCompression/grok/releases/tag/v20.3.0) | 2026-04-12 | stable |
| [v20.2.9](https://github.com/GrokImageCompression/grok/releases/tag/v20.2.9) | 2026-04-12 | stable |

_… and 5 earlier release(s)._

## Security & compliance


Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=ubuntu&package_name=libgrokj2k&per_page=100)). A count reflects scale and disclosure, not quality.

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### market

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://horosproject.org) | 2026-08-21 | 75% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://horosproject.org) | 2026-08-21 | 60% (medium) |
| pricing.model | free | [link](https://horosproject.org) | 2026-08-21 | 60% (medium) |
| pricing.price_level | free | [link](https://horosproject.org) | 2026-08-21 | 60% (medium) |

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 100 | [link](https://github.com/grokimagecompression/grok/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 293 | [link](https://github.com/grokimagecompression/grok) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 0 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Fgrokimagecompression%2Fgrok) | 2026-08-26 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | C++ | [link](https://github.com/grokimagecompression/grok) | 2026-08-26 | 90% (high) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 4 | [link](https://github.com/grokimagecompression/grok/releases) | 2026-08-26 | 70% (medium) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=ubuntu&package_name=libgrokj2k&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=ubuntu&package_name=libgrokj2k&per_page=100) | 2026-08-26 | 90% (high) |

---
*Source: Vioscale (https://www.vioscale.ai/software/horos). Independent, evidence-based software intelligence. Cite the canonical URI.*