Comparison

PittPIVOT vs Bone Ninja Sensei

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

Head to head
About

PittPIVOT

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The PittPIVOT app utilizes automated image analysis to quantify the translation of the knee during the Pivot Shift Test. This app is intended for use by medical professionals only in conduct of authorized research studies.

About

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.

Highlights
  • Analyze long bone deformities
  • Radiograph analysis tools
  • Simulate osteotomy solutions
  • Upload custom radiographs
  • Drawing and measuring tools
  • Educational case examples
Features
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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

Verdict

The call

The clearest difference is in-app purchases: PittPIVOT at none against Bone Ninja Sensei's 1. Bone Ninja Sensei's advantage is iOS requirement (11.4 vs 14.4). On price, update cadence, ads 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. Bone Ninja Sensei sells 1 in-app purchase, starting at $14.99 per year. PittPIVOT asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 27, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
PittPIVOT versus Bone Ninja Sensei: the parameters behind the verdict, then further details
ParameterPittPIVOTBone Ninja Sensei
PriceFreeFree
Rating—3.7 (3 ratings) — better
Positive reviews—25.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPadiPad
Requires iOS14.411.4 — better
Further details — not scored
Size4 MB48 MB
Age rating17+4+
DeveloperUniversity of PittsburghLifeBridge Health

In-app purchases

None

PittPIVOT

No in-app purchases

1 purchases

Bone Ninja Sensei

Subscriptions1
  • Annual Subscription Plan1 Month trial$14.991 Year

Questions

Is PittPIVOT free?
PittPIVOT is free to download, with no in-app purchases.
Is Bone Ninja Sensei free?
Bone Ninja Sensei is free to download, with in-app purchases available.
Do PittPIVOT or Bone Ninja Sensei have ads?
Neither PittPIVOT nor Bone Ninja Sensei shows ads.
Which is updated more often, PittPIVOT or Bone Ninja Sensei?
PittPIVOT ships an update every 3 months, and Bone Ninja Sensei every 3 months. Most recently, PittPIVOT was updated on September 27, 2026 and Bone Ninja Sensei on October 24, 2026.

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