# iDO Viewer vs X

The clearest difference is review sentiment: iDO Viewer at 100% against X's 0%. iDO Viewer also leads on rating (4.3 vs 1.0) and update cadence (every 3 months vs every 32 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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 X's.

iDO Viewer ships an update every 3 months, X every 32 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | iDO Viewer | X |
| --- | --- | --- |
| 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/x-ray-wow/id692079859/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 32 months |
| Monetization | Free | Free |
| Size | 26 MB | 51 MB |
| Requires iOS | 12.1 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [EBM Technologies, Incorporated.](https://appshunter.io/developer/404511773) | [Ballinger and Bruckner, LLP](https://appshunter.io/developer/692079862) |

## 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


### X

[App page](https://appshunter.io/ios/app/x-ray-wow/id692079859)

Explore a curated collection of authentic X-ray images showcasing serious trauma and surgical procedures. This app features over 55 detailed images, many with annotations, and allows for pinch-to-zoom functionality. It also provides links to medical terms and relevant YouTube videos for deeper understanding.

**Highlights:** Authentic X-ray images, Over 55 annotated images, Pinch-to-zoom functionality, Medical term definitions, Links to procedure videos

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

**In-app purchases:** none


## Frequently asked questions

### Is iDO Viewer free?

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

### Is X free?

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

### Which has better reviews, iDO Viewer or X?

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

### Do iDO Viewer or X have ads?

Neither iDO Viewer nor X shows ads.

### Which is updated more often, iDO Viewer or X?

iDO Viewer ships an update every 3 months, and X every 32 months. Most recently, iDO Viewer was updated on October 23, 2026 and X on October 22, 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.*