# X vs RED Study

The clearest difference is update cadence: RED Study at every 14 months against X's every 32 months. X's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

X ships an update every 32 months, RED Study every 14 months. The most recent releases landed on October 2, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | X | RED Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/x-ray-wow/id692079859/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 14 months** |
| Monetization | Free | — |
| Size | 51 MB | 7 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Ballinger and Bruckner, LLP](https://appshunter.io/developer/692079862) | [ideact](https://appshunter.io/developer/822202897) |

## What reviewers say

### 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


### RED Study

[App page](https://appshunter.io/ios/app/red-study/id1575175669)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is X free?

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

### Is RED Study free?

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

### Do X or RED Study have ads?

Neither X nor RED Study shows ads.

### Which is updated more often, X or RED Study?

X ships an update every 32 months, and RED Study every 14 months. Most recently, X was updated on October 2, 2026 and RED Study on September 17, 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.*