The Best Apps to Learn Radiology in 2026 (iPhone, iPad & Android)

By the DecodeMed Team7 min read

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Get the RadioAnato AI app, free:App StoreGoogle PlayAbout RadioAnato AI

A good radiology app must let you scroll through real CT and MRI stacks with your thumb—static single slices do not teach how to follow an artery or a bronchus. RadioAnato AI (the DecodeMed app) gives you scrollable, labelled CT and MRI studies paired with 3D organ models and an AI tutor on iPhone, iPad, Android and web; IMAIOS e-Anatomy is the classic paid pocket reference; and Radiopaedia and Radiology Assistant are the best for pathology cases and systematic checklists.

Lung CT in the DecodeMed radiology atlas: 3D models of the lungs, trachea and pulmonary vessels, with the five lobes labelled on the CT volume
A lung CT in the free radiology atlas: the lobes, the trachea and the pulmonary arteries and veins as 3D models and labelled on the volume. Image sources and licences.

What a radiology app needs on a phone or tablet

  • Smooth thumb scrolling through axial, coronal and sagittal stacks.
  • 3D organ correlation so you can see what a grey cross-section looks like as a whole structure.
  • Toggleable labels to test yourself before revealing the answer.
  • Fast lookup on the wards when an attending asks you to point out the portal vein or the internal capsule.

The best apps and mobile resources to learn radiology

  1. 01RadioAnato AI

    Best for: scrollable CT and MRI studies with 3D organ models and an AI tutor

    The DecodeMed app. Scroll real chest, abdominal, liver and brain CT/MRI volumes on your phone or tablet, with every structure labelled on the slice and reconstructed in 3D beside it. Ask the AI tutor a question and it answers directly on the scan and the 3D anatomy. Free to download on iPhone, iPad and Android, and the radiology atlas is free on the web; the AI tutor is a subscription.

  2. 02IMAIOS e-Anatomy

    Best for: exhaustive cross-sectional reference during residency

    Mobile and web app with thousands of labelled anatomical structures across CT, MRI and angiography. A few modules are free to try; full access requires an institutional or individual subscription.

  3. 03Radiopaedia

    Best for: scrolling tens of thousands of real patient cases

    The mobile site and iOS app give you access to the largest free library of scrollable clinical cases and concise reference articles for every diagnosis.

  4. 04Radiology Assistant

    Best for: step-by-step illustrated guides to reading CT and MRI

    Produced by the Radiological Society of the Netherlands, its mobile-friendly articles and app explain how to approach chest CT, liver lesions, brain MRI and trauma systematically.

  5. 05Sublux

    Best for: learning chest, abdominal and musculoskeletal X-rays on mobile

    An interactive app focused on plain radiographs, with overlays that teach you where to look for lines, stripes and fractures.

  6. 06Anki

    Best for: retaining classic signs, Hounsfield values and staging rules

    Use Anki decks with key slices and clinical questions so you never forget the difference between T1 and T2 MRI or the Couinaud liver segments.

Abdominal CT in the DecodeMed radiology atlas: 3D models of the organs beside the CT volume, with liver, kidneys, spleen, pancreas, stomach and adrenal glands labelled
An abdominal CT in the free radiology atlas: the organs as 3D models and labelled on the CT volume; the slices open below in axial, coronal and sagittal planes. Image sources and licences.

Study it in RadioAnato AI

RadioAnato AI, the DecodeMed app, puts 3D anatomy, CT and MRI studies, histology slides and an AI tutor that answers on them in your pocket. Free to download for iPhone, iPad and Android.

Four screens of the RadioAnato AI app: a labelled PET scan, a brain MRI with a 3D brain, 3D lungs with CT slices, and a labelled lung CT
RadioAnato AI on a phone: PET, MRI and CT studies with every structure labelled, next to its 3D model. Download the app. Image sources and licences.

About RadioAnato AI

Comparison at a glance

AppBest for3D + scrollable slicesCost
RadioAnato AINormal CT/MRI anatomy + 3D models + AI tutorYes (CT, MRI & 3D)Free download & web atlas; AI by subscription
IMAIOS e-AnatomyDetailed subspecialty labelling2D stacks + diagramsSubscription (some free modules)
RadiopaediaPathology cases & encyclopedia2D case stacksFree web (paid app features)
Radiology AssistantStructured reading checklistsAnnotated key imagesFree web, paid app
SubluxPlain X-ray basics2D X-ray overlaysFreemium

A 10-minute daily mobile routine

  • Pick one vessel or airway in the radiology atlas and scroll it from its origin to its branches.
  • Compare the 3D model at the top of the viewer with the axial slice below whenever you lose your orientation.
  • Read one practical guide such as how to read an abdominal CT or chest CT anatomy and find every structure on the scan.

To see how AI fits into imaging study, read the best AI to learn radiology and how to learn radiology with AI. For browser atlases, see the best radiology anatomy atlases.

Frequently asked questions

What is the best app to learn radiology for medical students?

RadioAnato AI is the best starting app because it combines scrollable, labelled CT and MRI volumes with 3D organ reconstructions and an AI tutor. Pair it with Radiology Assistant for reading checklists and Radiopaedia for pathology cases.

Is there a free radiology app with scrollable CT scans?

Yes. RadioAnato AI is free to download and its web radiology atlas is completely free, and Radiopaedia lets you scroll thousands of clinical cases for free in your mobile browser.

Should I start with an X-ray app or a CT/MRI app?

Use both in parallel: a cross-sectional app like RadioAnato AI teaches you the true 3D position of the organs in the chest and abdomen, which actually makes overlapping shadows on a plain X-ray much easier to understand.

DecodeMed and its app, RadioAnato AI, are our own product, so weigh what we say about them accordingly. We have no affiliate or commercial relationship with the other tools listed.

Get RadioAnato AI, the DecodeMed app

Anatomy, radiology and histology in one app, on the App Store and Google Play.

Four screens of the RadioAnato AI app: a labelled PET scan, a brain MRI with a 3D brain, 3D lungs with CT slices, and a labelled lung CTAbout RadioAnato AI

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