Benefits

Horos (free) OsiriX (free) OsiriX MD ($699)
+ Annual Premium
FDA Cleared No No Yes
CE IIa Labeled No No Yes
Medical Usage No No Yes
Telephone and E-mail Support Available Yes No Yes
64-bit Yes No Yes
Open 500+ Imaging Series Yes No Yes
2D Image Viewer Yes Yes Yes
3D Image Viewer Yes Yes Yes
3D Volume Rendering Yes Yes Yes
3D MPR, Curved MPR Yes Yes Yes
Local Image Database Yes Yes Yes
Web Server Yes Yes Yes
Web Server User Limit  Unlimited
 2 Users  Unlimited
DICOM Services Yes Yes Yes
DICOM Node Limit  Unlimited  2 Nodes Unlimited
DICOM Editing Yes No Yes
Bonjour Protocol Support Yes Yes Yes
CD Creation Yes Yes Yes
CD Publishing Yes Yes Yes
PET-CT Display Yes Yes Yes
Open Source GPL 3.0 License Yes No No