# Bone Ninja vs 15blades

The clearest difference is price: 15blades at Free against Bone Ninja's $49.99. 15blades also leads on update cadence (every 4 weeks vs every 4 months) and ratings volume (20 vs 3). Bone Ninja's advantage is review sentiment (90% vs 50%) and iOS requirement (8.0 vs 15.0). On rating, ads and in-app purchases there is nothing between them.

15blades is free to download; Bone Ninja costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Bone Ninja against 4.8 for 15blades. 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 are what separate them: 90% of Bone Ninja's written reviews are positive against 50% of 15blades's.

Bone Ninja ships an update every 4 months, 15blades every 4 weeks. The most recent releases landed on June 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Bone Ninja | 15blades |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/bone-ninja/id554151432/reviews) | **[4.8 (20 ratings)](https://appshunter.io/ios/app/15blades/id6465287425/reviews)** |
| Number of ratings | 3 | **20** |
| Positive reviews | **90.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Paid | **Free** |
| Size | 34 MB | 69 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [LifeBridge Health](https://appshunter.io/developer/460335164) | [15bladesmedia Inc.](https://appshunter.io/developer/1652063001) |

## What reviewers say

### Bone Ninja

[App page](https://appshunter.io/ios/app/bone-ninja/id554151432)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### 15blades

[App page](https://appshunter.io/ios/app/15blades/id6465287425)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Bone Ninja free?

Bone Ninja costs $49.99, with no in-app purchases.

### Is 15blades free?

15blades is free to download, with no in-app purchases.

### Which has better reviews, Bone Ninja or 15blades?

15blades is rated higher. Bone Ninja averages 4.7 out of 5 from 3 ratings, while 15blades averages 4.8 from 20 ratings.

### Do Bone Ninja or 15blades have ads?

Neither Bone Ninja nor 15blades shows ads.

### Which is updated more often, Bone Ninja or 15blades?

Bone Ninja ships an update every 4 months, and 15blades every 4 weeks. Most recently, Bone Ninja was updated on June 4, 2026 and 15blades on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*