# X vs Radiologic Technologist Exam

The clearest difference is in-app purchases: X at none against Radiologic Technologist Exam's 9. X also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Radiologic Technologist Exam sells 9 in-app purchases, starting at $14.99 per 7 days. X asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | X | Radiologic Technologist Exam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (37 ratings)](https://appshunter.io/ios/app/radiologic-technologist-exam/id6739476450/reviews)** |
| Number of ratings | — | **37** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 79 MB | 65 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [University of Oulu](https://appshunter.io/developer/1057902852) | [Exam Prep OU](https://appshunter.io/developer/1689642184) |

## What reviewers say

### X

[App page](https://appshunter.io/ios/app/x-ray-scatter-sim/id6463718894)

**In-app purchases:** none


### Radiologic Technologist Exam

[App page](https://appshunter.io/ios/app/radiologic-technologist-exam/id6739476450)

Prepare for the ARRT certification exam with a comprehensive study companion. Access thousands of practice questions, detailed explanations, and exam simulations to track your progress and customize your study plans.

**Highlights:** Extensive question bank, Detailed explanations, Exam simulation modes, Progress tracking, Customizable study plans, Intuitive interface

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ARRT Weekly Full Access | $14.99 | per 7 days |
| ARRT Monthly Full Access | $34.99 | per month |
| ARRT Monthly Full Access | $34.99 | per month |
| ARRT Quarterly Full Access | $55.99 | per 3 months |
| ARRT Quarterly Full Access | $59.99 | per 3 months |
| ARRT Semiannual Full Access | $75.99 | per 6 months |
| ARRT Semiannual Full Access | $79.99 | per 6 months |
| ARRT Annual Full Access | $109.99 | per year |
| ARRT Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is X free?

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

### Is Radiologic Technologist Exam free?

Radiologic Technologist Exam is free to download, with in-app purchases available.

### Do X or Radiologic Technologist Exam have ads?

Neither X nor Radiologic Technologist Exam shows ads.

### Which is updated more often, X or Radiologic Technologist Exam?

X ships an update every 4 months, and Radiologic Technologist Exam every 4 months. Most recently, X was updated on September 18, 2026 and Radiologic Technologist Exam on September 19, 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.*