Bone Ninja vs Podiatry PRISM
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.
Podiatry PRISM
This educational app provides quick access to medical and surgical knowledge for podiatric residency interviews. It features AJM lists compiled by experienced medical professionals, designed for easy study on iOS devices.
- Podiatric residency interview study manual
- Access to AJM lists
- Covers medical and surgical topics
- Created by residency director and resident
- Educational purposes only
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PRISM - Podiatric Residency Interview Study Manual The must-have PRISM manual for Podiatric externships is now available as an app for iOS! Quick and easy access to all of your favorite AJM lists which encompasses knowledge from a wide range of medical and surgical topics. PRISM was created by Dr. Andrew J Meyr, residency director at Temple University Hospital in Philadelphia PA. App version of PRISM was made by Dr. Jesse Borys, resident at Nazareth Hospital in Philadelphia PA. *Information from this app is for educational purposes only. All treatment decisions should be made at the discretion of your doctor.
Screenshots
Verdict
The clearest difference is price: Podiatry PRISM at Free against Bone Ninja's $49.99. Podiatry PRISM also leads on rating (5.0 vs 3.8) and device support (3 vs 1). On ratings volume, update cadence, ads and in-app purchases 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
Podiatry PRISM is free to download; Bone Ninja costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Podiatry PRISM holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 4 respectively.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Bone Ninja | Podiatry PRISM |
|---|---|---|
| Price | $49.99 | Free — better |
| Rating | 3.8 (4 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 90.0% of reviews | — |
| Number of ratings | 4 | 4 |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 | 8.0 |
| Further details — not scored | ||
| Size | 34 MB | 43 MB |
| Age rating | 4+ | 12+ |
| Developer | LifeBridge Health | Jesse Borys |
Customer experience
Bone Ninja
Podiatry PRISM
In-app purchases
Bone Ninja
No in-app purchases
Podiatry PRISM
No in-app purchases
Questions
Is Bone Ninja free?
Is Podiatry PRISM free?
Which has better reviews, Bone Ninja or Podiatry PRISM?
Do Bone Ninja or Podiatry PRISM have ads?
Which is updated more often, Bone Ninja or Podiatry PRISM?
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