Comparison

Clinical Tree vs NucApp

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

Head to head
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.

About

NucApp

Prepare for the nuclear medicine section of the ABR core exam with a question bank covering clinical, regulatory, and physical principles. Detailed explanations are provided by experienced radiology residents.

Highlights
  • Nearly 400 exam-style questions
  • Covers clinical principles
  • Covers regulatory principles
  • Covers physical principles
  • In-depth explanations
  • Written by senior residents
Features
Currently charting
Read full description

NucApp is a comprehensive Qbank aimed to help radiology residents prepare for the nuclear medicine section of the ABR core exam. Nearly 400 questions cover commonly tested clinical, regulatory, and physical principles of nuclear medicine with in-depth explanations written by senior UCSF radiology residents. Disclaimer: This product is not an attempt to practice medicine or provide specific medical advice. It is NOT to be used for clinical decision making and should not replace, overrule, or augment a qualified health care provider’s training and judgment. The content of this product is not intended for use in professional medical situations involving diagnosis or treatment. Human error is possible and all users are responsible for checking and verifying any information contained within this product. To the fullest extent of the law, the authors assume no responsibility for any damage and/or injury arising from or related to use of material contained herein.

Screenshots

Clinical Tree4 screens
NucApp4 screens

Verdict

The call

The clearest difference is price: Clinical Tree at Free against NucApp's $9.99. Clinical Tree also leads on rating (5.0 vs 4.5). NucApp's advantage is in-app purchases (none vs 10) and update cadence (weekly vs monthly). On review sentiment, ratings volume, ads and device support 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

Clinical Tree is free to download; NucApp costs $9.99 up front. Clinical Tree sells 10 one-off in-app purchases. NucApp asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Clinical Tree holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 7 and 8 respectively. Written reviews split almost evenly too, at 80% and 80% positive.

UpkeepUpdate frequency

Clinical Tree ships an update monthly, NucApp weekly. The most recent releases landed on September 10, 2026 and August 11, 2026 respectively.

Scorecard6 real differences · 5 level
Clinical Tree versus NucApp: the parameters behind the verdict, then further details
ParameterClinical TreeNucApp
PriceFree — better$9.99
Rating5.0 (7 ratings) — better4.5 (8 ratings)
Positive reviews80.0% of reviews80.0% of reviews
Number of ratings78 — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#173 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.0.0
Further details — not scored
Size83 MB30 MB
Age rating12+12+
DeveloperDuc NguyenIlan Benador-Shen

Customer experience

Clinical Tree

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

NucApp

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

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
None

NucApp

No in-app purchases

Questions

Is Clinical Tree free?
Clinical Tree is free to download, with in-app purchases available.
Is NucApp free?
NucApp costs $9.99, with no in-app purchases.
Which has better reviews, Clinical Tree or NucApp?
Clinical Tree is rated higher. Clinical Tree averages 5.0 out of 5 from 7 ratings, while NucApp averages 4.5 from 8 ratings.
Do Clinical Tree or NucApp have ads?
Neither Clinical Tree nor NucApp shows ads.
Which is updated more often, Clinical Tree or NucApp?
Clinical Tree ships an update monthly, and NucApp weekly. Most recently, Clinical Tree was updated on September 10, 2026 and NucApp on August 11, 2026.

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