# Bone Ninja vs Paley Growth Multipliers

The clearest difference is price: Paley Growth Multipliers at Free against Bone Ninja's $49.99. Paley Growth Multipliers also leads on device support (3 vs 1). Bone Ninja's advantage is iOS requirement (8.0 vs 13.0). On update cadence, ads and in-app purchases there is nothing between them.

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

Bone Ninja ships an update every 4 months, Paley Growth Multipliers every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Bone Ninja | Paley Growth Multipliers |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/bone-ninja/id554151432/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 34 MB | 72 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [LifeBridge Health](https://appshunter.io/developer/460335164) | [Tenet Florida Physician Services II, LLC](https://appshunter.io/developer/1702481531) |

## 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


### Paley Growth Multipliers

[App page](https://appshunter.io/ios/app/paley-growth-multipliers/id6461414973)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Bone Ninja free?

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

### Is Paley Growth Multipliers free?

Paley Growth Multipliers is free to download, with no in-app purchases.

### Do Bone Ninja or Paley Growth Multipliers have ads?

Neither Bone Ninja nor Paley Growth Multipliers shows ads.

### Which is updated more often, Bone Ninja or Paley Growth Multipliers?

Bone Ninja ships an update every 4 months, and Paley Growth Multipliers every 2 months. Most recently, Bone Ninja was updated on November 1, 2026 and Paley Growth Multipliers on November 3, 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.*