Comparison

CTisus CT Quick Guides vs Radiology References

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CTisus CT Quick Guides

This medical reference app provides radiologists and other healthcare professionals with curated CT images, imaging pearls, and clinical findings across 17 diverse topics. Key information is organized into critical findings, etiology, epidemiology, presentation, and prognosis for each subject.

Highlights
  • Curated CT images
  • Imaging pearls
  • Clinical findings
  • 17 topic sections
  • Critical CT findings
  • Etiology, epidemiology, presentation, prognosis
Features
Read full description

CTisus CT Quick Guides is a unique application that combines select CT images with imaging pearls and important clinical findings across a range of topics important to the radiologist and other medical professionals. The topics are varied and divided into 17 unique sections ranging from the adrenal gland to the vascular system. In each section there are multiple topics ranging from infectious and inflammatory disease to oncology. In each section key information is divided into subsections including  the critical CT findings, etiology, epidemiology, presentation and prognosis. We will continue to expand these modules which have won praise from our users especially as they are shared on our social media pages. Please let us know what additional topics you would like covered and any feedback on how we can improve the application. We hope you find it an important educational experience.

About

Radiology References

Features
Read full description

Radiology References puts comprehensive adult and pediatric measurements right in your pocket. Whether you're a radiologist, clinician, or medical student, you'll find age-based pediatric values, organ-specific reference ranges, images and citations—all designed to streamline your workflow. Terms & Conditions: http://hvalabs.com/terms-and-conditions/

Screenshots

CTisus CT Quick Guides4 screens
Radiology References4 screens

Verdict

The call

The clearest difference is in-app purchases: CTisus CT Quick Guides at none against Radiology References's 4. CTisus CT Quick Guides also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Radiology References sells 4 in-app purchases, starting at $1.99 per 7 days. CTisus CT Quick Guides asks for nothing beyond the download.

UpkeepUpdate frequency

CTisus CT Quick Guides ships an update every 6 months, Radiology References every 5 months. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 7 level
CTisus CT Quick Guides versus Radiology References: the parameters behind the verdict, then further details
ParameterCTisus CT Quick GuidesRadiology References
PriceFreeFree
Rating4.8 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyEvery 6 monthsEvery 5 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better17.0
Further details — not scored
Size52 MB19 MB
Age rating17+17+
DeveloperElliot FishmanHVALABS, LLC

In-app purchases

None

CTisus CT Quick Guides

No in-app purchases

4 purchases

Radiology References

Subscriptions4
  • Weekly Premium$1.997 Days
  • Monthly Premium$5.991 Month
  • Yearly Premium$24.991 Year
Show 1 more
  • Yearly Premium7 Days trial$34.991 Year

Questions

Is CTisus CT Quick Guides free?
CTisus CT Quick Guides is free to download, with no in-app purchases.
Is Radiology References free?
Radiology References is free to download, with in-app purchases available.
Do CTisus CT Quick Guides or Radiology References have ads?
Radiology References shows ads; CTisus CT Quick Guides does not.
Which is updated more often, CTisus CT Quick Guides or Radiology References?
CTisus CT Quick Guides ships an update every 6 months, and Radiology References every 5 months. Most recently, CTisus CT Quick Guides was updated on October 25, 2026 and Radiology References on October 11, 2026.

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