# XRay vs Arthro Diagnostics

The clearest difference is in-app purchases: Arthro Diagnostics at none against XRay's 3. XRay's advantage is update cadence (monthly vs every 4 months) and iOS requirement (16.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. XRay sells 3 in-app purchases, starting at $3.99 per 7 days. Arthro Diagnostics asks for nothing beyond the download.

XRay ships an update monthly, Arthro Diagnostics every 4 months. The most recent releases landed on November 12, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | XRay | Arthro Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (135 ratings)](https://appshunter.io/ios/app/xray-sublux-anatomy-learning/id6738170494/reviews)** | — |
| Number of ratings | **135** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 1 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [European Apps Solutions](https://appshunter.io/developer/1633473927) | [Redpill Linpro AB](https://appshunter.io/developer/1877091292) |

## What reviewers say

### XRay

[App page](https://appshunter.io/ios/app/xray-sublux-anatomy-learning/id6738170494)

Explore detailed X-ray images with interactive labels and in-depth explanations. Test your knowledge with quizzes and master human anatomy with high-resolution visuals. Ideal for students and professionals seeking to understand radiographic images.

**Highlights:** Interactive quizzes, Detailed image descriptions, Color-coded anatomy, High-resolution DICOM images, Progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $3.99 | per 7 days |
| Yearly Subscription | $17.99 | per year |
| Lifetime access | $29.99 | one-time |


### Arthro Diagnostics

[App page](https://appshunter.io/ios/app/arthro-diagnostics/id6759158209)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is XRay free?

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

### Is Arthro Diagnostics free?

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

### Do XRay or Arthro Diagnostics have ads?

Neither XRay nor Arthro Diagnostics shows ads.

### Which is updated more often, XRay or Arthro Diagnostics?

XRay ships an update monthly, and Arthro Diagnostics every 4 months. Most recently, XRay was updated on November 12, 2026 and Arthro Diagnostics on November 9, 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.*