Bone Ninja Sensei vs 15blades
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bone Ninja Sensei
This educational tool, created by orthopedic surgeons, helps medical professionals learn to analyze long bone deformities. It provides tools for drawing, measuring, and simulating osteotomy solutions on provided or uploaded radiographs.
- Analyze long bone deformities
- Radiograph analysis tools
- Simulate osteotomy solutions
- Upload custom radiographs
- Drawing and measuring tools
- Educational case examples
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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. Terms of Use and Privacy Policy: https://www.lifebridgehealth.org/main/terms-of-use-and-privacy-policy
15blades
A peer-to-peer medical education platform using short-form videos and posts for micro-learning. Healthcare professionals can share insights, ask questions, and engage in discussions to advance medical knowledge.
- Micro-learning environment
- Short-form video and post curation
- Create posts and polls
- Share insights and questions
- Encourage discussions and debates
- Peer-to-peer knowledge sharing
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15Blades is a peer to peer medical media educational platform that focuses on micro-learning to keep pace with todays healthcare professional. We have created a micro-learning environment where short form videos and posts are curated for your experience. We welcome healthcare professionals to participate as a life-long student and educator to advance the spread of medical knowledge and discourse. With our app, you can create posts and polls, allowing you to share your insights, questions, and knowledge with your peers. 15Blades also encourages discussions and debates, promoting a deeper understanding of medical concepts. We welcome healthcare professionals to participate as a life-long student and educator to advance the spread of medical knowledge and discourse.
Screenshots
Verdict
The clearest difference is rating: 15blades at 4.8 against Bone Ninja Sensei's 3.7. 15blades also leads on in-app purchases (none vs 1) and review sentiment (50% vs 25%). Bone Ninja Sensei's advantage is iOS requirement (11.4 vs 15.0). On price and ads 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. Bone Ninja Sensei sells 1 in-app purchase, starting at $14.99 per year. 15blades asks for nothing beyond the download.
15blades holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: 15blades has 20 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 25% of Bone Ninja Sensei's written reviews are positive against 50% of 15blades's.
Bone Ninja Sensei ships an update every 3 months, 15blades every 4 weeks. Both last shipped on November 3, 2026.
| Parameter | Bone Ninja Sensei | 15blades |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 4.8 (20 ratings) — better |
| Positive reviews | 25.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 3 | 20 — better |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 11.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 48 MB | 69 MB |
| Age rating | 4+ | 12+ |
| Developer | LifeBridge Health | 15bladesmedia Inc. |
Customer experience
Bone Ninja Sensei
15blades
In-app purchases
Bone Ninja Sensei
- Annual Subscription Plan1 Month trial$14.991 Year
15blades
No in-app purchases
Questions
Is Bone Ninja Sensei free?
Is 15blades free?
Which has better reviews, Bone Ninja Sensei or 15blades?
Do Bone Ninja Sensei or 15blades have ads?
Which is updated more often, Bone Ninja Sensei or 15blades?
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