MedScan vs RadiAnt: Windows Speed vs Apple-Native Mobility
Updated July 12, 2026 · 6 min read
Ask a room of clinicians on Windows what DICOM viewer they actually enjoy using and RadiAnt comes up immediately. It opens a patient CD in seconds, scrolls a thousand-slice CT without stutter, and costs a fraction of enterprise workstation software. As Windows desktop viewers go, it is arguably the best experience per dollar available, and nothing below disputes that.
The entire comparison hinges on one fact: RadiAnt runs only on Windows. No macOS build, no iPad app, no phone version. If your hardware is Apple — or if the place you need to view a study is an operatory, a ward, or a patient consultation rather than a desk — RadiAnt is out of the running by definition, and the real question is what the best native option on your device is. That is the slot MedScan occupies on iPad and iPhone.
Side-by-Side
| MedScan | RadiAnt | |
|---|---|---|
| Platform | iPad + iPhone, native iOS app | Windows only — no Mac/iOS/Android |
| Price | Free tier; Pro from $4.99/week | Affordable per-workstation license, paid upgrades |
| Offline use | 100% on-device, no account | Yes (desktop, local files/CDs) |
| Dental tools | Arch/panoramic CPR + cross-sections, tooth numbering, Misch HU probe, CBCT presets | Generic CT tools; no dental workflow |
| PACS | DICOMweb (QIDO/WADO), Basic + OAuth2 PKCE; Orthanc, dcm4chee | DIMSE PACS client (C-FIND/C-MOVE) |
| Formats | JPEG2000/Lossless/JPEG-LS/RLE; SEG, RTSTRUCT, RTDOSE, GSPS, SR, PDF, WSI | Broad codec support; strong CD/DICOMDIR handling |
| MPR / 3D | Ax/sag/cor/oblique, slab MIP/MinIP/Avg, Metal GPU volume rendering, PET/CT fusion | Fast MPR, 3D VR, PET/CT fusion — very quick on Windows |
| Regulatory status | Not a medical device | CE-certified edition available in some markets |
Feature-for-feature the two are closer than the platform gap suggests: both do multiplanar reconstruction, 3D volume rendering, PET/CT fusion, cine playback, and precise measurements. MedScan adds the retained DICOM objects most desktop viewers in this price class skip — SEG, RTSTRUCT, RTDOSE, GSPS, SR, encapsulated PDF — and whole-slide imaging; the complete list is in the formats reference.
Choose RadiAnt If…
- Your daily machine is a Windows PC and you read at a desk — RadiAnt's speed and simplicity there are hard to beat.
- You prefer a one-time-style license over a subscription and only need one or two workstations.
- You need a DIMSE PACS client against a legacy archive that does not expose DICOMweb.
- Your jurisdiction requires a CE-marked viewer and RadiAnt's certified edition is available to you.
Choose MedScan If…
- You work on Apple hardware — MedScan is native to iPad and iPhone, with Metal GPU rendering tuned for Apple silicon.
- You need the viewer where the patient is: chairside CBCT review, bedside explanation, referrals opened on the spot.
- You do dental implant work: panoramic arch reformats, cross-sections, tooth numbering, and Misch D1–D4 density readouts are core features, not plugins.
- You want to render SEG, RTSTRUCT, GSPS, SR and encapsulated PDFs — the parts of a study most compact viewers drop.
Coexistence Notes
Mixed Windows-plus-iPad environments are the norm, not the exception, and the pairing works well: RadiAnt at the desk, MedScan in your hand. Because both are standards-based, the interchange is boring in the best way — patient CDs, ZIPs, and DICOMDIR folders open on either side unchanged. If you want both to see the same library without copying files, stand up a small DICOMweb server (Orthanc installs in minutes): RadiAnt talks to it over DIMSE, MedScan over QIDO-RS/WADO-RS with Basic or OAuth2 PKCE auth. How MedScan's pipeline handles the decoding and GPU work is covered on the technology page.
FAQ
Does RadiAnt run on Mac, iPad, or iPhone?
No. RadiAnt is Windows-only. There is no macOS, iOS, or Android version, and the developer has not announced one. On Apple hardware your realistic options are OsiriX/Horos on macOS or a native iOS viewer like MedScan on iPad and iPhone.
Is MedScan as fast as RadiAnt?
RadiAnt is famous for its speed on Windows, and it deserves that reputation. MedScan is built on Metal GPU rendering and is tuned for Apple silicon — large CT and CBCT volumes scroll and reconstruct smoothly on modern iPads. They are fast on different hardware; neither wins on the other’s platform, because neither runs there.
How does pricing compare?
RadiAnt sells affordable perpetual-style licenses per workstation (with paid updates), which many find excellent value on Windows. MedScan uses a free tier plus a Pro subscription from $4.99/week. Which is cheaper depends on how long you use it and on how many devices.
Can RadiAnt users open their studies in MedScan?
Yes. Both apps read standard DICOM. Copy the study folder, ZIP, or patient CD contents to the iPad (Files, AirDrop, cloud drive) and MedScan opens it directly, including DICOMDIR structures. A shared DICOMweb PACS like Orthanc also lets both platforms browse the same archive.
Which is better for dental CBCT?
RadiAnt handles CBCT volumes well as general CT data and its 3D VR is solid. But it has no dental-specific workflow. MedScan provides arch-curve panoramic reformats with cross-sections, tooth numbering, CBCT presets, and a Misch HU density probe aimed squarely at implant workflows.
Is either viewer a certified medical device?
RadiAnt offers a CE-certified medical-device edition in some markets alongside its general version. MedScan is not a medical device; it is a viewer and measurement tool. For regulated primary diagnosis, use software cleared for that purpose in your jurisdiction.
Also compare: MedScan vs OsiriX · MedScan vs Horos · MedScan vs OHIF · Best DICOM viewer for iPad