# BoneGauge vs Bone Ninja Sensei

The clearest difference is rating: BoneGauge at 5.0 against Bone Ninja Sensei's 3.7. BoneGauge also leads on in-app purchases (none vs 1) and device support (3 vs 1). On price, ratings volume and ads there is nothing between them.

Both are free to download. Bone Ninja Sensei sells 1 in-app purchase, starting at $14.99 per year. BoneGauge asks for nothing beyond the download.

BoneGauge holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

## The numbers

| Metric | BoneGauge | Bone Ninja Sensei |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bonegauge/id1166827400/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/bone-ninja-sensei/id6450483301/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 48 MB |
| Requires iOS | **9.0** | 11.4 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [HarborLight Solutions LLC](https://appshunter.io/developer/377136756) | [LifeBridge Health](https://appshunter.io/developer/460335164) |

## What reviewers say

### BoneGauge

[App page](https://appshunter.io/ios/app/bonegauge/id1166827400)

This medical app approximates bone density and quality using smartphone images of the second metacarpal bone. It calculates cortical percentage, which correlates with DXA scan results, aiding in patient screening and treatment decisions.

**Highlights:** Approximate bone density and quality, Measure cortical thickness of second metacarpal, Use smartphone camera or saved images, Calculate 2nd metacarpal cortical percentage (2MCP), Upload measurements to central database, Estimate global T score

**Features:** macOS Compatibility

**In-app purchases:** none


### Bone Ninja Sensei

[App page](https://appshunter.io/ios/app/bone-ninja-sensei/id6450483301)

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:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription Plan | $14.99 | per year |


## Frequently asked questions

### Is BoneGauge free?

BoneGauge 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.

### Which has better reviews, BoneGauge or Bone Ninja Sensei?

BoneGauge is rated higher. BoneGauge averages 5.0 out of 5 from 2 ratings, while Bone Ninja Sensei averages 3.7 from 3 ratings.

### Do BoneGauge or Bone Ninja Sensei have ads?

Neither BoneGauge nor Bone Ninja Sensei shows ads.

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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.*