# iRadTech HD vs Prepry

The clearest difference is rating: Prepry at 4.6 against iRadTech HD's 3.3. Prepry also leads on review sentiment (89% vs 50%) and update cadence (every 5 days vs every 19 months). iRadTech HD's advantage is monetization model (free with in-app purchases vs subscription) and iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. iRadTech HD sells 1 one-off in-app purchase and Prepry sells 5 in-app purchases, starting at $49.99 per month. Whichever you choose, the download price is not the number that matters.

Prepry holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Prepry has 248 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of iRadTech HD's written reviews are positive against 89% of Prepry's.

iRadTech HD ships an update every 19 months, Prepry every 5 days. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | iRadTech HD | Prepry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (4 ratings)](https://appshunter.io/ios/app/iradtech-hd/id473487610/reviews) | **[4.6 (248 ratings)](https://appshunter.io/ios/app/prepry-radiography-exam-prep/id6480055398/reviews)** |
| Number of ratings | 4 | **248** |
| Positive reviews | 50.0% of reviews | **88.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 120 MB | 168 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 12+ | +4 |
| Developer | [Ballinger and Bruckner, LLP](https://appshunter.io/developer/692079862) | [Imago AI LLC](https://appshunter.io/developer/1403879712) |

## What reviewers say

### iRadTech HD

[App page](https://appshunter.io/ios/app/iradtech-hd/id473487610)

A radiographic positioning guide for medical imaging professionals and students. It offers detailed instructions, image quality points, and technical factors for various positions, with an initial free version and an in-app purchase to unlock full content.

**Highlights:** Radiographic positioning guide, Detailed instructions, Image quality points, Suggested technical factors, Expandable images and radiographs, Notes panel for each position

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iRadTech HD unlock exams | $24.99 | one-time |


### Prepry

[App page](https://appshunter.io/ios/app/prepry-radiography-exam-prep/id6480055398)

Prepare for your ARRT® Radiography exam with a comprehensive study tool. It offers a large question bank, adaptive learning, and customizable practice tests to enhance retention and track progress. Study online or offline to master radiographic principles for a successful career.

**Highlights:** Extensive question bank, Adaptive learning with spaced repetition, Customizable practice tests, Progress tracking and analytics, Offline study capabilities, Detailed imaging and anatomy visuals

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prepry Monthly | $49.99 | per month |
| Prepry Quarterly | $149.99 | per 3 months |
| Prepry 6 Months | $179.99 | per 6 months |
| Prepry Annual | $199.99 | per year |
| Prepry Lifetime | $399.99 | one-time |

**What reviewers like**

- 👍 Easy to use and navigate
- 💡 Informative and helps understanding
- 🚀 Great for studying and board exams
- 👍 User-friendly interface
- 👍 Helpful for radiography topics

**What reviewers complain about**

- 🐛 Progress resets in image review tool
- 💰 Costly and limited without payment
- 🐛 Some bugs exist

**Reported bugs**

- Image review progress resets
- Some bugs present

**Requested features**

- Save progress during image review tool
- Add French language option
- Make all features usable without paying


## Frequently asked questions

### Is iRadTech HD free?

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

### Is Prepry free?

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

### Which has better reviews, iRadTech HD or Prepry?

Prepry is rated higher. iRadTech HD averages 3.3 out of 5 from 4 ratings, while Prepry averages 4.6 from 248 ratings.

### Do iRadTech HD or Prepry have ads?

Neither iRadTech HD nor Prepry shows ads.

### Which is updated more often, iRadTech HD or Prepry?

iRadTech HD ships an update every 19 months, and Prepry every 5 days. Most recently, iRadTech HD was updated on October 8, 2026 and Prepry on October 18, 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.*