CTisus 10 Minute ER Challenge vs RadCS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CTisus 10 Minute ER Challenge
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.
- 60 emergency CT cases
- 10-minute diagnostic challenge
- 10-second diagnosis per case
- Radiology image interpretation
- Knowledge evaluation tool
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Test your emergency imaging interpretation efficiency! This App includes radiology images for 60 emergency cases that users must diagnose in 10 minutes. Each case is presented as an unknown. You have 10 seconds to make the diagnosis, before the answer is provided. Disclaimer: This app is developed for radiologists and medical professionals to enhance and evaluate their knowledge on various CT cases. This app doesn’t provide any medical advices or treatment plans.
RadCS
Provides quick access to essential measurements and numbers used in radiology practice. Serves as a mini-textbook for medical professionals. Content is curated by board-certified radiologists.
- Radiology measurements lookup
- Mini-textbook format
- Curated by expert radiologists
- Regular updates
- Educational purposes
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This app RadCS has been created for at-hand look up of or as a mini-textbook for important measurements and numbers that we commonly use in radiology practice. Editor-in-chief Dr. Shyam Sabat. Contributors: Dr. Dhanashree Rajdekar, Dr. Abdullah M., Dr. Andrew Blum, Dr. Troy Storey, Dr. Cooper Dean, and others). DISCLAIMER: Versive Inc, developers of the app, have no independent medical expertise and make no claims as to the veracity of this content. The Board Certified sub-specialty radiologists creating the app have extensive medical expertise, and update this app whenever information or direction is known to change. Notwithstanding, all users of this app, medical professionals or otherwise are fully responsible for their use or application of information contained herein. The contents are intended to be used for educational purposes only and the authors/editors do not claim copyright over the contents.
Screenshots
Verdict
The clearest difference is update cadence: RadCS at every 11 days against CTisus 10 Minute ER Challenge's every 4 months. RadCS also leads on iOS requirement (12.0 vs 15.6). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 RadCS. Both are backed by a comparable volume of ratings — 15 and 8 respectively.
CTisus 10 Minute ER Challenge ships an update every 4 months, RadCS every 11 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | CTisus 10 Minute ER Challenge | RadCS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (15 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 15 — better | 8 |
| Update frequency | Every 4 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 67 MB |
| Age rating | 17+ | 12+ |
| Developer | Elliot Fishman | Versive Inc |
Customer experience
CTisus 10 Minute ER Challenge
RadCS
In-app purchases
CTisus 10 Minute ER Challenge
No in-app purchases
RadCS
No in-app purchases
Questions
Is CTisus 10 Minute ER Challenge free?
Is RadCS free?
Which has better reviews, CTisus 10 Minute ER Challenge or RadCS?
Do CTisus 10 Minute ER Challenge or RadCS have ads?
Which is updated more often, CTisus 10 Minute ER Challenge or RadCS?
Other comparisons
