Comparison

DRU Classification vs Orthopedic Examination Lite

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

Head to head
About

DRU Classification

Features
Read full description

The distal radius and ulna (DRU) classification is an accurate parameter of a child’s maturity status. It is useful for management of spine and limb deformities as it can predict the peak growth spurt and growth cessation with good sensitivity and specificity. It has also been shown to be an indicator of scoliosis curve progression and predict which curves will deteriorate. This app provides users with a tool to understand the DRU classification, how to use the classification for grading skeletal maturity, and also for guiding treatment. In addition, this app has a calculation function for final body height prediction for female patients with idiopathic scoliosis. Current features: 1. Explanation of the DRU classification 2. Distal radius and ulna features on x-rays for grading 3. DRU grading quiz 4. Final height prediction calculator 5. Useful publications in this field of paediatric skeletal growth and scoliosis curve progression Features to come: 1. Curve progression prediction 2. Image capture and automated grading and prediction

About

Orthopedic Examination Lite

This app provides a comprehensive guide to special orthopedic tests for surgeons and residents. It details the purpose, performance, positive indicators, sensitivity, specificity, source, and images for each test across various body regions. A free version with ads is available, with a pro version offering an ad-free experience and more features.

Highlights
  • Special orthopedic tests
  • Tests for shoulder, elbow, wrist, hand, hip, knee, ankle, foot
  • Purpose, performance, and positive indicators
  • Sensitivity & specificity data
  • Test images
  • Categorized by region and type
Read full description

Orthopedic Examination is an app that contains all Special Tests in orthopedic surgery. For all orthopedic surgery residents and specialists who are interested in learning and memorizing the special tests in orthopedic surgery. Orthopedic Examination contains all special tests that an orthopedic surgeon needs for shoulder, elbow, wrist, hand, hip, knee, ankle and foot clinical examination. The app is categorized in multiple sections based on the region and type of examination. Every test page contains these sections: - The purpose of the test (Used For) - How the test performed - When it's considered positive. - The sensitivity & specificity - The source of the test - An Image of the test This free version is limited and contains admob Ads for continuing app developement. Orthopedic Examination app will be updated continuously by adding new special tests and improve the app. Orthopedic Examination Pro version with ads-free and more features are available on the App Store. Disclaimer Reminder: The app cannot and does not contain medical/health advice. Medical/health information is provided for general informational and educational purposes only and is not a substitute for professional advice. Accordingly, before taking any action based on such information, we encourage you to consult with the appropriate professionals. We do not provide any type of medical/health advice. YOUR USE OF OR RELIANCE ON ANY INFORMATION CONTAINED IN OUR MOBILE APPLICATION IS SOLELY AT YOUR OWN RISK

Screenshots

DRU Classification4 screens
Orthopedic Examination Lite4 screens

Verdict

The call

The clearest difference is ads: DRU Classification at none against Orthopedic Examination Lite's shown. DRU Classification also leads on iOS requirement (12.0 vs 14.0). Orthopedic Examination Lite's advantage is update cadence (every 5 weeks vs every 29 months). On price, in-app purchases 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

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

UpkeepUpdate frequency

DRU Classification ships an update every 29 months, Orthopedic Examination Lite every 5 weeks. The most recent releases landed on September 13, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
DRU Classification versus Orthopedic Examination Lite: the parameters behind the verdict, then further details
ParameterDRU ClassificationOrthopedic Examination Lite
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 29 monthsEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size28 MB20 MB
Age rating17+4+
DeveloperDepartment of Orthopaedics and Traumatology, The University of Hong KongAhmad Al Hariri

In-app purchases

None

DRU Classification

No in-app purchases

None

Orthopedic Examination Lite

No in-app purchases

Questions

Is DRU Classification free?
DRU Classification is free to download, with no in-app purchases.
Is Orthopedic Examination Lite free?
Orthopedic Examination Lite is free to download, with no in-app purchases.
Do DRU Classification or Orthopedic Examination Lite have ads?
Orthopedic Examination Lite shows ads; DRU Classification does not.
Which is updated more often, DRU Classification or Orthopedic Examination Lite?
DRU Classification ships an update every 29 months, and Orthopedic Examination Lite every 5 weeks. Most recently, DRU Classification was updated on September 13, 2026 and Orthopedic Examination Lite on September 14, 2026.

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