# iDO Viewer vs DICOM Spectator

The clearest difference is review sentiment: iDO Viewer at 100% against DICOM Spectator's 0%. iDO Viewer also leads on rating (4.3 vs 1.0) and in-app purchases (none vs 1). On price, ads and device support there is nothing between them.

Both are free to download. DICOM Spectator sells 1 one-off in-app purchase. iDO Viewer asks for nothing beyond the download.

iDO Viewer holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 100% of iDO Viewer's written reviews are positive against 0% of DICOM Spectator's.

iDO Viewer ships an update every 3 months, DICOM Spectator every 80 months. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | iDO Viewer | DICOM Spectator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/ido-viewer/id494179581/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/dicom-spectator/id1497425584/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 80 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 76 MB |
| Requires iOS | **12.1** | 26.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EBM Technologies, Incorporated.](https://appshunter.io/developer/404511773) | [Matthias Rudolph](https://appshunter.io/developer/597470203) |

## What reviewers say

### iDO Viewer

[App page](https://appshunter.io/ios/app/ido-viewer/id494179581)

This application allows medical professionals to view multi-modality medical images and files from PACS servers on their mobile devices. It supports various imaging formats and offers tools for image manipulation and organization.

**Highlights:** Multi-modality imaging support, PACS server integration, Image manipulation (pan, zoom, window level), Support for JPG, BMP, PDF files, Quick layout adjustment, Fast image and data access

**In-app purchases:** none


### DICOM Spectator

[App page](https://appshunter.io/ios/app/dicom-spectator/id1497425584)

View and analyze medical images from DICOM files, including MRI, X-Ray, PET, and CT scans. Explore image sequences in 3D and manipulate them in real-time for detailed examination.

**Highlights:** View DICOM files, Supports MRI, X-Ray, PET, CT, 3D image visualization, Real-time image manipulation, Image sequence stacking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $4.99 | one-time |


## Frequently asked questions

### Is iDO Viewer free?

iDO Viewer is free to download, with no in-app purchases.

### Is DICOM Spectator free?

DICOM Spectator is free to download, with in-app purchases available.

### Which has better reviews, iDO Viewer or DICOM Spectator?

iDO Viewer is rated higher. iDO Viewer averages 4.3 out of 5 from 3 ratings, while DICOM Spectator averages 1.0 from 1 ratings.

### Do iDO Viewer or DICOM Spectator have ads?

Neither iDO Viewer nor DICOM Spectator shows ads.

### Which is updated more often, iDO Viewer or DICOM Spectator?

iDO Viewer ships an update every 3 months, and DICOM Spectator every 80 months. Most recently, iDO Viewer was updated on October 23, 2026 and DICOM Spectator on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*