Available worldwide
What is Horos?
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.
Horos pricing
We don't have Horos's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Horos does
The capabilities that matter for medical imaging pacs, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- 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
Platform & deployment
Independently observed- macOS
- Cloud / SaaS
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Horos alternatives
Other medical imaging pacs we track, ranked by the same independent score.
- Intelerad Medical SystemsCloud-based medical imaging platform that connects healthcare professionals to improve patient care workflowslow · 14%
- OHIF Viewerlow · 35%
- PostDICOMMedical imaging archive and diagnostic viewer hosted securely in the cloudlow · 42%
- Dedalus IMPAXIntegrated healthcare data platform enabling coordinated care across hospital and community settingslow · 8%
- Radiant DICOM ViewerWindows desktop application for viewing and analyzing DICOM medical images with PACS connectivitylow · 25%
- GE Healthcare Centricity PACSlow · 7%
Compare Horos
Side by side against other medical imaging pacs, attribute by attribute, with a source on every value.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Horos, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Development activity | 63 | 0.09 | 5.9 | ✓ |
| Release cadence | 98 | 0.05 | 5.1 | ✓ |
| Capabilities | 46 | 0.08 | 3.6 | ✓ |
| Stars | 47 | 0.03 | 1.2 | ✓ |
| Integrations | 0 | 0.07 | 0.0 | - |
| Dependent projects | 0 | 0.06 | 0.0 | ✓ |
| Security posture | 0 | 0.07 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Security score | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 100 | mediumsource · 2026-08-26 · 65% |
Adoption
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Pricing model: free_open_source · Deployment model: native_desktop_app · Dicom protocol native support: Yes · Secure patient image sharing portal: Yes | mediumsource · 2026-08-21 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | C++ | highsource · 2026-08-26 · 90% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-21 · 75% |
Pricing
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=ubuntu&package_name=libgrokj2k&per_page=100 · Last 12m: 0 | highsource · 2026-08-26 · 90% |