Best Free DICOM Viewer for iPhone & iPad in 2026
Updated April 2026 · 5 min read
Most professional DICOM viewers cost $50–$800 per year. But for viewing CT, MRI, and X-Ray scans on iPhone or iPad, you don't need to pay anything to get started. MedScan offers a fully functional free tier with no time limit, no account required, and no cloud uploads.
What's Free in MedScan
Free vs Desktop DICOM Viewers
Traditional desktop free options like OsiriX Lite, Horos, or MicroDicom are Windows/Mac-only and require a full installation. MedScan free runs natively on iPhone and iPad — no desktop required, no setup.
| Feature | Desktop Free | MedScan Free |
|---|---|---|
| Works on iPhone | ✗ | ✓ |
| Works on iPad | ✗ | ✓ |
| No installation | ✗ | ✓ |
| 100% offline | ✓ | ✓ |
| No account needed | Varies | ✓ |
| All DICOM modalities | Varies | ✓ |
| ZIP import | Varies | ✓ |
How to Start Viewing for Free
1. Download MedScan. It's free on the App Store. No payment info required to install.
2. Get your DICOM files. From your hospital CD, email attachment, patient portal download, or imaging center export.
3. Import. Tap the “+” button, choose your source. MedScan handles .dcm files, ZIP archives, and full folder structures.
4. View. Scroll through slices, pinch to zoom, adjust window/level with a drag gesture. Everything works offline.
Free Tier Limits
The free tier stores up to 10 scans and 2 patients simultaneously. When you reach the limit, delete older scans to add new ones. The scans themselves are not limited in size — a 2000-slice CT study is stored and viewed just like any other.
For professionals reviewing more than 10 studies regularly, Pro removes all limits and adds MPR reconstruction, measurement tools (ruler, angle, ROI), starting at $4.99/week. AI analysis coming soon.
Ready to start?
Download MedScan free — no account, no credit card, no cloud uploads.
Privacy — Why Free Doesn't Mean “You Are the Product”
Some free web-based DICOM viewers monetize by uploading your medical images to their servers. MedScan free works entirely on-device. No data is sent anywhere. No ads. No analytics on your medical images.