Comparison

CT Registry Test Pro vs Clinical Tree

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

Head to head
About

CT Registry Test Pro

Prepare for your ARRT® Computed Tomography (CT) technologist certification exam with over 900 practice questions. Test your knowledge across key categories, review explanations, track your progress, and study protocols to strengthen your foundation.

Highlights
  • Over 900 practice questions
  • ARRT® registry format testing
  • Detailed answer explanations
  • Study notes section
  • Review previous tests
  • All questions with answers
  • Statistics tracking
  • CT protocol guidelines
Read full description

**AMERICAN REGISTRY OF RADIOLOGIC TECHNOLIGISTS® and ARRT® are registered trademarks owned by The American Registry of Radiologic Technologists. This app is not licensed by, endorsed by, or affiliated with The American Registry of Radiologic Technologists.** If your goal is to become a Computed tomography (CT) technologist, you need to earn American registry of radiologic technologist® (ARRT®) credentials in Computed Tomography (CT). The purpose of ARRT® certification and registration in CT is to recognize individuals who are qualified to perform the role of CT technologist. The education requirements to earn the credential to become a CT technologist include being ARRT® certified, meeting the structured education requirement, and meeting the clinical experience. In the structure education requirement is where an applicant will master the discipline specific knowledge and cognitive skills you will need to obtain your credential. This app will help you to strength your foundation by testing your knowledge with over 900 questions in the ARRT® registry format. The ARRT® examination content consists of 165 question base in four major categories such as patient care, safety, image production, and procedures. In addition, to 20 unscored (pilot) questions. The ARRT® scoring scale range from 1 to 99, and you’ll need a total score of 75 to pass the exam. Features: A test section to test your knowledge in a random order, as similar as possible to the ARRT® examination. It allows user to know if the correct answer was selected and if not a pop-up button will appear with access to the correct answer's explanation. A notes section to allow you to study and prepare for the test. The different note’s categories allow you to study the area where you feel you need to strength your foundation. A Review Test question that allow user to go back and review the last test they took in each category to review the test. An All Question Section that allows the user to see all the questions with the answers. The questions can be adjusted by content category as listed in the ARRT®. A Statistics section that help the user to keep track of all the statistics such as general score, number of questions taken, number of tests taken, and much more. A protocols section that allows user to see a step by step guideline in how to perform the different types of protocols that are regularly done in a clinical setting. If you have any question or concern, please feel free to contact me via edunorth07@gmail.com, to find the best solution possible. I want to take this line to thank each of you that chooses to use my app, please take a moment to review the app and to let me know in which areas I can make any improvements. Thanks in advance for all the reviews and ideas of improvement. If you really like the app and you feel the app really help you to become a CT technologist, I will be more than happy and my goal will be achieved. Please feel free to share the app with family and friend so they can use it if they are getting ready for the CT examination. Email me via edunorth07@gmail.com if you have any question or ideas you like to see included.

About

Clinical Tree

Access a vast medical knowledge base with quick answers to health questions. Explore detailed information on symptoms, diseases, and treatments across numerous clinical specialties. Stay updated with daily new content and specialized databases.

Highlights
  • Instant medical answer search
  • Information on symptoms and treatments
  • Daily updated articles and videos
  • Over 1,000,000 specialized databases
  • Covers numerous clinical specialties
  • Aids students and teachers
Features
Read full description

***Clinical Tree - Lead medical answers*** Get quick and accurate answers to your medical questions with our comprehensive database. Stay informed about symptoms, diseases, treatments, and more. Explore our extensive collection of articles, videos, and interactive tools to deepen your understanding of the medical specialties such as radiology, dentistry, musculoskeletal, gastroenterology, thoracic, obstetrics, nephrology, neurology, psychiatry, otolaryngology, ophthalmology, plastic surgery, veterinary, mursing, oncology, anesthesiology... Key Features: • Instantly search for medical answers • Find information on symptoms, treatments, and preventive measures in clinical specialties • Update every day the best and the lastest articles, books, journals, clinical cases, images, videos... • More than 1.000.000 specialized databases, including gastrointestinal, emergency, cardiovascular, musculoskeletal, radiographic anatomy, breast, MRI, chest, ultrasonography, CT , nuclear medicine, pediatric, genitourinary, FRCR, interventional radiology, neurological, head & neck... • Not only we help students quickly and comprehensively access all clinical knowledge but also help teachers prepare lectures easily.

Screenshots

CT Registry Test Pro4 screens
Clinical Tree4 screens

Verdict

The call

The clearest difference is ads: Clinical Tree at none against CT Registry Test Pro's shown. Clinical Tree also leads on update cadence (monthly vs every 2 months) and iOS requirement (13.0 vs 15.6). CT Registry Test Pro's advantage is ratings volume (214 vs 7). On price, rating, review sentiment and in-app purchases 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. CT Registry Test Pro sells 1 one-off in-app purchase and Clinical Tree sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for CT Registry Test Pro against 5.0 for Clinical Tree. That said, the two scores are not equally well evidenced: CT Registry Test Pro has 214 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 72% of CT Registry Test Pro's written reviews are positive against 80% of Clinical Tree's.

UpkeepUpdate frequency

CT Registry Test Pro ships an update every 2 months, Clinical Tree monthly. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
CT Registry Test Pro versus Clinical Tree: the parameters behind the verdict, then further details
ParameterCT Registry Test ProClinical Tree
PriceFreeFree
Rating4.9 (214 ratings)5.0 (7 ratings) — better
Positive reviews72.2% of reviews80.0% of reviews — better
Number of ratings214 — better7
Update frequencyEvery 2 monthsMonthly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size93 MB83 MB
Age rating4+12+
DeveloperEdunorth L.L.C.Duc Nguyen

Customer experience

CT Registry Test Pro

All ratings181 ratings
Positive96.1%
Neutral2.2%
Negative1.7%
Written reviews18 reviews
Positive72.2%
Neutral11.1%
Negative16.7%

Clinical Tree

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

1 purchases

CT Registry Test Pro

One-time1
  • Access all the app features$39.99
10 purchases

Clinical Tree

One-time10
  • Single 9 package$8.99
  • Single 15 package$14.99
  • 6 month package$19.99
Show 7 more
  • Single 19 package$19.99
  • Single 25 package$24.99
  • 1 year package$29.99
  • Tzu N package$29.99
  • Tne N package$39.99
  • Nne N package$99.99
  • Lifetime package$99.99

Questions

Is CT Registry Test Pro free?
CT Registry Test Pro is free to download, with in-app purchases available.
Is Clinical Tree free?
Clinical Tree is free to download, with in-app purchases available.
Which has better reviews, CT Registry Test Pro or Clinical Tree?
Clinical Tree is rated higher. CT Registry Test Pro averages 4.9 out of 5 from 214 ratings, while Clinical Tree averages 5.0 from 7 ratings.
Do CT Registry Test Pro or Clinical Tree have ads?
CT Registry Test Pro shows ads; Clinical Tree does not.
Which is updated more often, CT Registry Test Pro or Clinical Tree?
CT Registry Test Pro ships an update every 2 months, and Clinical Tree monthly. Most recently, CT Registry Test Pro was updated on November 3, 2026 and Clinical Tree on November 3, 2026.

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