Slice vs DICOM Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slice
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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
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.
- 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
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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
Verdict
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
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.
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.
| Parameter | Slice | DICOM Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 288 MB | 16 MB |
| Age rating | 4+ | 12+ |
| Developer | Roy Rodenhauser | Bon App & T |
In-app purchases
Slice
No in-app purchases
DICOM Viewer
- DICOM Viewer Pro Weekly$7.997 Days
- DICOM Viewer Pro Yearly$19.991 Year
- DICOM Viewer Pro Lifetime$29.99









