# CTisus iQuiz 26 vs Radiology Core

The clearest difference is review sentiment: CTisus iQuiz 26 at 80% against Radiology Core's 24%. CTisus iQuiz 26 also leads on price (Free vs $9.99) and rating (4.8 vs 2.9). Radiology Core's advantage is chart position (#152 vs unranked) and iOS requirement (12.0 vs 16.6). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

CTisus iQuiz 26 is free to download; Radiology Core costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CTisus iQuiz 26 holds the better App Store score, 4.8 against 2.9. Both are backed by a comparable volume of ratings — 125 and 50 respectively. Written reviews point the same way: 80% of CTisus iQuiz 26's written reviews are positive against 24% of Radiology Core's.

CTisus iQuiz 26 ships an update every 3 months, Radiology Core every 6 months. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | CTisus iQuiz 26 | Radiology Core |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.8 (125 ratings)](https://appshunter.io/ios/app/ctisus-iquiz-26/id399024441/reviews)** | [2.9 (50 ratings)](https://appshunter.io/ios/app/radiology-core-physics-plus/id1225040758/reviews) |
| Number of ratings | **125** | 50 |
| Positive reviews | **80.0% of reviews** | 23.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#152** |
| Size | 238 MB | 25 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Elliot Fishman](https://appshunter.io/developer/399024444) | [Lieu Duong](https://appshunter.io/developer/1657425589) |

## What reviewers say

### CTisus iQuiz 26

[App page](https://appshunter.io/ios/app/ctisus-iquiz-26/id399024441)

This application offers a classic quiz format for radiology education, utilizing images, text, and sound to enhance learning. It features over 1800 cases across 15 categories, including case-specific insights and audio discussions.

**Highlights:** Over 1800 radiology cases, 15 different learning categories, Case-specific pearls, Audio discussion of cases, Image, text, and sound integration, Easy-to-use interface

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

**In-app purchases:** none


### Radiology Core

[App page](https://appshunter.io/ios/app/radiology-core-physics-plus/id1225040758)

**Currently charting:** #152 Top Paid · Medical (US App Store)

Prepare for the Radiology Core Exam's physics section with a premium resource. Access over 500 board-relevant questions with detailed explanations, covering all modalities and noninterpretive skills. The app is continually updated with new content to enhance your study time.

**Highlights:** Comprehensive physics review, Over 500 board-relevant questions, Full explanation for each question, Covers all modalities, Includes noninterpretive skills, Continually updated content

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

**In-app purchases:** none


## Frequently asked questions

### Is CTisus iQuiz 26 free?

CTisus iQuiz 26 is free to download, with no in-app purchases.

### Is Radiology Core free?

Radiology Core costs $9.99, with no in-app purchases.

### Which has better reviews, CTisus iQuiz 26 or Radiology Core?

CTisus iQuiz 26 is rated higher. CTisus iQuiz 26 averages 4.8 out of 5 from 125 ratings, while Radiology Core averages 2.9 from 50 ratings.

### Do CTisus iQuiz 26 or Radiology Core have ads?

Neither CTisus iQuiz 26 nor Radiology Core shows ads.

### Which is updated more often, CTisus iQuiz 26 or Radiology Core?

CTisus iQuiz 26 ships an update every 3 months, and Radiology Core every 6 months. Most recently, CTisus iQuiz 26 was updated on November 1, 2026 and Radiology Core on November 11, 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.*