voXel
Serious version
10 Nov
My Notes
Every note and case in one table, with folders and tags. Saved views are Pro.
A DICOM viewer for iPad
Radiology class just got weird.
voXel opens CT, MR, X-ray, ultrasound and more on iPad, then turns them into lessons, flashcards and 3D prints. Free to view.
Play with a real CT
Press I to invert
24 slices of one real CT, coloured like a pop-art print. voXel keeps them grey: ten CT presets, or your own centre and width.
Reads CT, MR, X-ray, mammography, ultrasound and angiography; uncompressed, JPEG, JPEG-LS and RLE; colour, palette and multi-frame. Exports PNG, JPEG, GIF, MP4, STL, OBJ, 3MF, USDZ, DICOM, PDF and Anki flashcards.
Pull the lever. Learn a window.
Three reels: the plane, the window and the spot. Hold the ones you like and spin the rest. Each result is the real CT, windowed with the same sums the app runs. In voXel you can cut any plane, oblique too. It follows the file's geometry, a tilted gantry included, so a coronal cut keeps the patient's proportions.
Window-o-matic
Loading the CT
Pull to start
Every CT pixel is a number in Hounsfield units. The window picks which numbers get the greys.
0 / 36
Plane
Window
Spot
Made for the teaching bit.
Viewing is the start. The rest is for the person at the front of the room, and the people taking notes.
Lecture recording
Tap the mic in a note and record the class. Ask the lecturer first. It stays on the iPad.
Transcribe Pro
A recording turned into text on the iPad, on iPadOS 26. It knows radiology words.
Study sets
Cases in your order, copied from the slices you pick, with the patient details written over.
Guided steps
Save views with their slice, window and a line of text. The arrows walk the class through.
Case notes
History to teaching points, under seven headings. A note outlives its study.
Note pins
A note on a finding, linked to a web page or another case. 5 free, unlimited with Pro.
Sequence notes
A lined page beside the image, typed or in Apple Pencil, linked to the slice. 3 free, unlimited with Pro.
Saved slides
A slice and its marks, with no patient details. Export a PDF or an Anki deck. 10 free.
Arrows on a run Pro
On angiography, each label or arrow stays on its own few frames.
Hide patient details
One tap before you put the screen on the projector.
Measure Pro
Distance, angle, Cobb angle, area and HU.
Everything, in orbit.
Tap a planet. Solid ones are in voXel when it comes out on 10 November. A dashed one filled in is built and in testing; empty dashed ones are planned, not promised.
Free to look. Pro to build.
No prices on this page. The free part stays free for as long as you like.
Admit one · no login
Free
- Ten CT presets, invert, or your own centre and width
- Scroll, cine, zoom, pan, rotate, mirror
- One, two or four panels, scrolling together
- Tag inspector and Show performance
- My Notes, case notes, study sets and guided steps
- Record a lecture and play it back
- Hide patient details with one tap
- 5 note pins, 3 sequence notes, 10 saved slides
- PNG and PDF with a small footer, and Anki flashcards
- Folder, ZIP or RAR from Files, USB-C or AirDrop
Tilt it. Tap it.
The real thing, on iPad: the 3D screen, lasso out, cutting a stray piece away.
Spin it.
The same CT in 3D, rendered live in your browser. Drag to turn it. Smash a button.
A simplified render in your browser. In the app, the presets also find vessels and take the bone out.
Free to view.No login.No portal.
iPadOS 18 or later. No account, no analytics, no cloud. Your studies stay on your iPad.
Class starts 10 November.
voXel arrives on the App Store on 10 November. Free to view, iPadOS 18 or later.
The sample is a phantom. For a real scan, take one from The Cancer Imaging Archive: a brain MRI before tumour surgery (151 slices, 6.7 MB, face removed) or a contrast CT from neck to pelvis (270 slices, 66 MB). Save it to Files, then tap + in voXel.