# CTisus 10 Minute ER Challenge vs Basic Radiology

The clearest difference is update cadence: CTisus 10 Minute ER Challenge at every 4 months against Basic Radiology's every 35 months. CTisus 10 Minute ER Challenge also leads on monetization model (free vs free with in-app purchases) and ratings volume (13 vs 4). Basic Radiology's advantage is iOS requirement (9.0 vs 15.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for CTisus 10 Minute ER Challenge against 5.0 for Basic Radiology. Both are backed by a comparable volume of ratings — 13 and 4 respectively.

CTisus 10 Minute ER Challenge ships an update every 4 months, Basic Radiology every 35 months. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CTisus 10 Minute ER Challenge | Basic Radiology |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (13 ratings)](https://appshunter.io/ios/app/ctisus-10-minute-er-challenge/id1154587260/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/basic-radiology-secondlook/id1259825428/reviews)** |
| Number of ratings | **13** | 4 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 35 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 30 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Elliot Fishman](https://appshunter.io/developer/399024444) | [The University of Michigan](https://appshunter.io/developer/380339599) |

## What reviewers say

### CTisus 10 Minute ER Challenge

[App page](https://appshunter.io/ios/app/ctisus-10-minute-er-challenge/id1154587260)

This app offers a timed challenge for medical professionals to interpret emergency radiology images. Users diagnose 60 CT cases within 10 minutes, with a 10-second limit per diagnosis before the answer is revealed. It's designed to evaluate and improve knowledge of emergency imaging.

**Highlights:** 60 emergency CT cases, 10-minute diagnostic challenge, 10-second diagnosis per case, Radiology image interpretation, Knowledge evaluation tool

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

**In-app purchases:** none


### Basic Radiology

[App page](https://appshunter.io/ios/app/basic-radiology-secondlook/id1259825428)

This medical study aid offers a collection of radiographic images for self-testing knowledge of human anatomy and pathologies. Developed by medical faculty, it's designed for students and professionals to evaluate their skills and prepare for exams. All eight specialized slide sets are available for purchase within the app.

**Highlights:** Radiographic image self-testing, Structure and pathology recognition, Eight specialized slide sets, Knowledge gap identification, Exam preparation tool, Developed by medical faculty

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

**In-app purchases:** none


## Frequently asked questions

### Is CTisus 10 Minute ER Challenge free?

CTisus 10 Minute ER Challenge is free to download, with no in-app purchases.

### Is Basic Radiology free?

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

### Which has better reviews, CTisus 10 Minute ER Challenge or Basic Radiology?

Basic Radiology is rated higher. CTisus 10 Minute ER Challenge averages 4.9 out of 5 from 13 ratings, while Basic Radiology averages 5.0 from 4 ratings.

### Do CTisus 10 Minute ER Challenge or Basic Radiology have ads?

Neither CTisus 10 Minute ER Challenge nor Basic Radiology shows ads.

### Which is updated more often, CTisus 10 Minute ER Challenge or Basic Radiology?

CTisus 10 Minute ER Challenge ships an update every 4 months, and Basic Radiology every 35 months. Most recently, CTisus 10 Minute ER Challenge was updated on October 4, 2026 and Basic Radiology on October 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.*