# iRadTech vs CT

The clearest difference is price: CT at Free against iRadTech's $24.99. CT also leads on review sentiment (100% vs 86%). iRadTech's advantage is ads (none vs shown) and chart position (#32 vs unranked). On rating, update cadence, in-app purchases and device support there is nothing between them.

CT is free to download; iRadTech costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for iRadTech against 4.5 for CT. Both are backed by a comparable volume of ratings — 53 and 12 respectively. Written reviews are what separate them: 86% of iRadTech's written reviews are positive against 100% of CT's.

iRadTech ships an update every 8 months, CT every 12 months. The most recent releases landed on September 26, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | iRadTech | CT |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | **[4.6 (53 ratings)](https://appshunter.io/ios/app/iradtech/id346126006/reviews)** | [4.5 (12 ratings)](https://appshunter.io/ios/app/ct-computed-tomography/id1562592280/reviews) |
| Number of ratings | **53** | 12 |
| Positive reviews | 85.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 8 months** | Every 12 months |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | **#32** | — |
| Size | 122 MB | 55 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Ballinger and Bruckner, LLP](https://appshunter.io/developer/692079862) | [Fabricio Tarter](https://appshunter.io/developer/1533271635) |

## What reviewers say

### iRadTech

[App page](https://appshunter.io/ios/app/iradtech/id346126006)

**Currently charting:** #32 Top Paid · Medical (US App Store)

This app provides detailed instructions and technical factors for over 200 radiographic positions, serving as a comprehensive guide for medical imaging professionals and students. It includes representative images, positioning details, and helpful notes, designed to align with ARRT content specifications and ASRT curriculum.

**Highlights:** 200+ radiographic positions, Technical factors and settings, Patient and part positioning, Representative radiographic images, Enlargeable positioning photographs, Search and save functions, ARRT content alignment

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

**In-app purchases:** none


### CT

[App page](https://appshunter.io/ios/app/ct-computed-tomography/id1562592280)

This app provides a didactic and effective way for students, radiologists, and bio-image graduates to learn and reinforce their knowledge of computed tomography protocols. It features a human body model with selectable protocols, detailing essential information for each study.

**Highlights:** Human body model for protocol selection, Detailed protocol information, Indications and preparation guidance, Scout view and FOV details, Cut thickness and gap information, Window settings and reconstruction plans, Protocol-specific images

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

**In-app purchases:** none


## Frequently asked questions

### Is iRadTech free?

iRadTech costs $24.99, with no in-app purchases.

### Is CT free?

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

### Which has better reviews, iRadTech or CT?

iRadTech is rated higher. iRadTech averages 4.6 out of 5 from 53 ratings, while CT averages 4.5 from 12 ratings.

### Do iRadTech or CT have ads?

CT shows ads; iRadTech does not.

### Which is updated more often, iRadTech or CT?

iRadTech ships an update every 8 months, and CT every 12 months. Most recently, iRadTech was updated on September 26, 2026 and CT on September 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.*