Bullets* vs DRU Classification
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bullets*
Access medical and orthopedic educational content, including topics, questions, and cases. Create custom exams, review scientific articles, and monitor community activity. Earn CME credits through self-assessment exams and collaborative learning.
- Medical and orthopedic topics
- Customizable exams (Testmaster)
- Article review with PDFs
- Community activity feed
- Earn CME credits
- Point of Care Learning (PoCL)
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The companion APP for Orthobullets.com and Medbullets.com. Bullets* contains medbullets and orthobullets Topics, Questions, Techniques, Cases, Videos, and Evidence. Our Testmaster allows you to create, take, and review customized exams. Article links allows for quick review of scientific abstracts and often the PDF is provided and can be viewed on your phone. Our "Home" screen allows you to monitor a thread of educational activity within our community. All educational activity, including the Qbank, is synced with the main platform for seamless use on both your iPhone APP and computer. You can earn CME by taking Self-Assessment Exams and contributing to our free collaboration community by posting educational comments with scientific references as part of our Point of Care Learning (PoCL) activity. All CME Study Plan examinations can be taken on the iPhone and can be found on your CME Dashboard. Residents on the PASS institutional platform can take PASS exams, complete their PASS Skillmaster learning modules, and submit both Rotation and Milestone Skill Evaluations to faculty. Faculty members using PASS Pro 2.0 can grade Rotation Evaluations and Milestone Skill Evaluations on the APP, eliminating the need to log in with each evaluation.
DRU Classification
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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
Screenshots
Verdict
The clearest difference is update cadence: Bullets* at every 8 days against DRU Classification's every 29 months. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bullets* ships an update every 8 days, DRU Classification every 29 months. The most recent releases landed on September 15, 2026 and September 13, 2026 respectively.
| Parameter | Bullets* | DRU Classification |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (61 ratings) — better | — |
| Positive reviews | 67.6% of reviews | — |
| Number of ratings | 61 — better | — |
| Update frequency | Every 8 days — better | Every 29 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 168 MB | 28 MB |
| Age rating | 17+ | 17+ |
| Developer | Lineage Medical, LLC | Department of Orthopaedics and Traumatology, The University of Hong Kong |
In-app purchases
Bullets*
No in-app purchases
DRU Classification
No in-app purchases
Questions
Is Bullets* free?
Is DRU Classification free?
Do Bullets* or DRU Classification have ads?
Which is updated more often, Bullets* or DRU Classification?
Other comparisons
