Horos is described as '- a free, open medical image viewer. The goal of the Horos Project is to develop a fully functional, 64-bit DICOM viewer for OS X based on OsiriX'. There are more than 25 alternatives to Horos for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and iPhone. The best alternative is OsiriX. It's not free, so if you're looking for a free alternative, you could try MicroDicom or RadiAnt DICOM Viewer. Other great apps like Horos are Weasis (Free, Open Source), 3D Slicer (Free, Open Source), Miele-LXIV (Free, Open Source) and 3DimViewer (Free, Open Source).
MicroDicom is application for primary processing and preservation of medical images in DICOM format It is equipped with most common tools for manipulation of DICOM images and it has an intuitive user interface.
Weasis is a multipurpose standalone and web-based DICOM viewer with a highly modular architecture. It is a very popular clinical viewer used in healthcare by hospitals, health networks, multicenter research trials, and patients.
Slicer is a community platform created for the purpose of subject specific image analysis and visualization.
3D Slicer vs Horos opinions
Some users think 3D Slicer is a great alternative to Horos, some don't.
Free and open source one with a lot of useful extensions.
Even though the interface looks a bit cluttered, there are tons of video tutorials that will help through it and once you grab the essentials, you'll be just fine.
Positive comment • about 1 year ago
Too complicated to set up and even more complicated to use.
Miele-LXIV is a DICOM workstation, viewer and more. The project started in November 2014 as a fork of the popular open source 32-bit project OsiriX, but it has been modified to become a 64-bit application and to remove many of the limitations of the 32-bit version.
Aeskulap is a medical image viewer capable to load a series of special images stored in the DICOM format for review, query and fetch DICOM images from archive nodes (also called PACS) over the network.
ClearCanvas Workstation is a full featured, easy to use PACS Workstation that comes in two editions: Clinical, which is FDA 510(k) cleared and intended for clinical use, and Community, which is free and open source.