Comparison

Slice vs DICOM Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Slice

Read full description

Slicer-AR is an interactive visualisation tool designed for exploring 3D medical data such as MRI scans. The app allows users to define custom cross-section planes by simply moving their device, offering a new way to navigate and understand volumetric datasets beyond traditional views. This intuitive approach supports dynamic, real-time exploration of complex anatomical structures, making it ideal for educational, research, and demonstration purposes. Note: This app is not intended for diagnosis or clinical decision-making. UI optmised for iPad

About

DICOM Viewer

Easily open and view medical scan files like CT, MRI, and X-rays directly on your device. Analyze images with measurement tools, create 3D renderings, and manage your studies privately without uploading data.

Highlights
  • Open CT, MRI, X-ray, and ultrasound files
  • View and analyze scan images
  • 3D rendering and STL export
  • Measurement and markup tools
  • PACS server integration
  • Private on-device storage
Features
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Got a CD or a folder of scan files from the hospital and no way to open them? This app opens them in seconds, right on your iPhone, iPad or Mac. It reads CT, MRI, X-ray, ultrasound, PET and more. Everything stays on your device. No account. Nothing is uploaded. TRY IT BEFORE YOU IMPORT ANYTHING Tap Import, then Sample exams, and the app downloads a real chest CT, chest X-ray, pelvis MRI or chest ultrasound so you can test it right away. WHO IT IS FOR - Patients who want to see their own scan - Students learning to read images - Doctors, nurses and techs who need a quick look away from the desk OPEN WHAT THE CLINIC GAVE YOU - Import from folders, ZIP files, single files or a link - Studies, series and slices, sorted the way the scanner sent them - Reads the packed file types hospitals really use, including JPEG 2000, JPEG Lossless and JPEG-LS - Thumbnails, plus search by patient, exam or scan type READ THE IMAGES - Set brightness and contrast by dragging, with CT presets for brain, lung, bone, soft tissue and vessels - Scroll a stack, zoom, pan, rotate, flip, invert and play as a movie - Put two series side by side, linked by position, so different slice thicknesses stay lined up - See the full file information, tag by tag MEASURE AND MARK UP - Distance, angle, Cobb angle, area, closed path, curved line, pixel value and cardiothoracic ratio - Arrows, ellipses, boxes, text and free drawing - Area statistics: mean, standard deviation, lowest and highest value - Marks stay with the slice, and the timeline shows where they are - Save a marked-up image straight to Photos SEE IT IN 3D - Turn a CT or MR series into three linked views, at any angle - Thick slab views: maximum, minimum and mean - Volume rendering with presets for bone, skin, vessels and soft tissue - Surface rendering and STL export at life size, ready for 3D printing WORK WITH YOUR SERVERS - Search and pull exams from a PACS, or send exams to one - Receive exams pushed from a scanner or another device - Find DICOM devices on the local network SHARE WITHOUT SHARING TOO MUCH - Export the original DICOM files - Export or keep a copy with names, IDs, dates and private tags removed - Sort exams into folders, and fix labels an exam arrived with PRIVACY Exams are read and kept on your device. Nothing is sent anywhere unless you choose to send it to a server you set up yourself. IMPORTANT This app is for viewing and organizing medical imaging files. It is not cleared for primary diagnosis and does not replace clinical systems, diagnostic workstations or professional medical judgment. ABOUT THE SAMPLE EXAMS The sample exams, and the scans in the screenshots, are de-identified public research data from The Cancer Imaging Archive: the LIDC-IDRI (CC BY 3.0, https://doi.org/10.7937/K9/TCIA.2015.LO9QL9SX), PROSTATE-DIAGNOSIS (CC BY 3.0, https://doi.org/10.7937/K9/TCIA.2015.FOQEUJVT) and CMB-LCA (CC BY 4.0, https://doi.org/10.7937/3CX3-S132) collections. Full citations are in the app under Settings > Acknowledgements. Privacy Policy: https://bon-app.net/privacy-policy/ Terms of Use (EULA): https://bon-app.net/terms-of-use/

Screenshots

Slice3 screens
DICOM Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: Slice at none against DICOM Viewer's 3. Slice also leads on iOS requirement (15.0 vs 17.0). DICOM Viewer's advantage is update cadence (every 5 days vs every 2 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DICOM Viewer sells 3 in-app purchases, starting at $7.99 per 7 days. Slice asks for nothing beyond the download.

UpkeepUpdate frequency

Slice ships an update every 2 months, DICOM Viewer every 5 days. The most recent releases landed on October 11, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
Slice versus DICOM Viewer: the parameters behind the verdict, then further details
ParameterSliceDICOM Viewer
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size288 MB16 MB
Age rating4+12+
DeveloperRoy RodenhauserBon App & T

In-app purchases

None

Slice

No in-app purchases

3 purchases

DICOM Viewer

Subscriptions2
  • DICOM Viewer Pro Weekly$7.997 Days
  • DICOM Viewer Pro Yearly$19.991 Year
One-time1
  • DICOM Viewer Pro Lifetime$29.99

Questions

Is Slice free?
Slice is free to download, with no in-app purchases.
Is DICOM Viewer free?
DICOM Viewer is free to download, with in-app purchases available.
Do Slice or DICOM Viewer have ads?
Neither Slice nor DICOM Viewer shows ads.
Which is updated more often, Slice or DICOM Viewer?
Slice ships an update every 2 months, and DICOM Viewer every 5 days. Most recently, Slice was updated on October 11, 2026 and DICOM Viewer on October 26, 2026.

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