Bone Ninja vs The Arthrex Surgeon App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bone Ninja
This educational tool helps orthopedic surgeons learn to analyze and correct long bone deformities using digital radiographs. It provides tools for measurement, drawing, and simulating osteotomy solutions, based on established surgical methodology.
- Radiograph analysis of bone deformities
- Digital measurement and drawing tools
- Osteotomy simulation with cut-out tool
- Upload and analyze personal radiographs
- Comparison with suggested correction solutions
- Educational tool based on established methodology
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Bone Ninja is a teaching tool developed by two orthopedic surgeons who specialize in limb deformity correction: Dr. Shawn Standard and Dr. John Herzenberg. It is designed to help surgeons learn to analyze long bone deformities. Bone Ninja comes pre-loaded with radiographs of normal legs and deformed legs. You can analyze the provided cases or upload your own. Once your analysis is complete, you can then use the cut-out tool to try different osteotomy solutions. Suggested solutions for the provided cases are available for comparison. Bone Ninja includes tools for drawing lines, measuring angles, measuring lengths, and calibrating the magnification. The cutting tool allows you to manipulate one or more fragments to simulate correction of single or multilevel deformities. The analysis of the radiographs is based on methodology taught at our annual Baltimore Limb Deformity Course (BLDC), now in its 22nd year (DeformityCourse.com). We developed this app to supplement the BLDC and look forward to feedback from attendees and other users. Bone Ninja is not presented as a clinical tool, but rather an educational tool. It will not “automatically” analyze deformities. The student must first learn the methodology of analyzing and planning deformity correction in order to use Bone Ninja. Bone Ninja is a 21st century mobile alternative to pencil, ruler, goniometer, and paper. Bone Ninja will be periodically updated by adding more case examples, more explanations, and more tools. The name “Bone Ninja” is intentionally whimsical and reflects our philosophy of teaching as “infotainment.” Enjoy! Disclaimer The Bone Ninja App is designed for educational purposes only. The intent is to train physicians how to analyze long bone deformities. The Bone Ninja App is not intended to be used for medical diagnosis or treatment. In view of the possibility of human error or changes in medical science, neither the authors nor the developer warrant that the information contained in this software is accurate or complete and they are not responsible for any errors or omissions or the results obtained from the use of such information.
The Arthrex Surgeon App
Access a comprehensive digital library of orthopedic knowledge and surgical resources on your mobile device. Stream HD technique videos and browse extensive content offline, organized logically for quick discovery.
- HD surgical technique videos
- Extensive digital orthopedic knowledge library
- Offline content access
- Optimized for iPad and iPhone
- Intuitive filtering and organization
- Cloud video streaming
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The Arthrex Surgeon App provides 24/7 mobile access to our extensive digital orthopedic knowledge and resource library. The app allows you to consume content online as well as offline. Key Features: HD surgical technique videos by leading surgeons Extensive digital orthopedic knowledge library Optimized for iPad and iPhone Video streaming from the cloud for improved performance and speed Logical content organization and labeling for easy browsing from broad to specific topics Intuitive filtering for faster information discovery Developed in close collaboration with leading orthopedic surgeons About Arthrex: Arthrex Inc. is a global leader in multi-specialty, minimally invasive surgical technology, medical research, manufacturing and medical education. Arthrex develops and releases more than 1,000 new products and procedures every year to advance minimally invasive orthopedics, trauma, spine and arthroplasty innovation worldwide, and specializes in the latest 4K multi-specialty surgical visualization and OR integration technology solutions.
Screenshots
Verdict
The clearest difference is price: The Arthrex Surgeon App at Free against Bone Ninja's $49.99. The Arthrex Surgeon App also leads on rating (4.8 vs 3.8) and update cadence (monthly vs every 4 months). Bone Ninja's advantage is iOS requirement (8.0 vs 18.0). On review sentiment, 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
The Arthrex Surgeon App is free to download; Bone Ninja costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.
The Arthrex Surgeon App holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: The Arthrex Surgeon App has 29 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 90% of Bone Ninja's written reviews are positive against 88% of The Arthrex Surgeon App's, so the app with the better star average is not the one people write more warmly about.
Bone Ninja ships an update every 4 months, The Arthrex Surgeon App monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | Bone Ninja | The Arthrex Surgeon App |
|---|---|---|
| Price | $49.99 | Free — better |
| Rating | 3.8 (4 ratings) | 4.8 (29 ratings) — better |
| Positive reviews | 90.0% of reviews — better | 87.5% of reviews |
| Number of ratings | 4 | 29 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 34 MB | 43 MB |
| Age rating | 4+ | 17+ |
| Developer | LifeBridge Health | Arthrex, Inc. |
Customer experience
Bone Ninja
The Arthrex Surgeon App
In-app purchases
Bone Ninja
No in-app purchases
The Arthrex Surgeon App
No in-app purchases
Questions
Is Bone Ninja free?
Is The Arthrex Surgeon App free?
Which has better reviews, Bone Ninja or The Arthrex Surgeon App?
Do Bone Ninja or The Arthrex Surgeon App have ads?
Which is updated more often, Bone Ninja or The Arthrex Surgeon App?
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