# Multiplier vs BoneGauge

The clearest difference is monetization model: BoneGauge at free against Multiplier's paid. BoneGauge also leads on rating (5.0 vs 4.6) and iOS requirement (9.0 vs 13.0). Multiplier's advantage is ratings volume (24 vs 2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BoneGauge holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Multiplier has 24 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | Multiplier | BoneGauge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (24 ratings)](https://appshunter.io/ios/app/multiplier/id460335161/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bonegauge/id1166827400/reviews)** |
| Number of ratings | **24** | 2 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | Paid | **Free** |
| Size | 62 MB | 18 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [LifeBridge Health](https://appshunter.io/developer/460335164) | [HarborLight Solutions LLC](https://appshunter.io/developer/377136756) |

## What reviewers say

### Multiplier

[App page](https://appshunter.io/ios/app/multiplier/id460335161)

This app automates complex calculations for predicting mature height, bone length, and limb length discrepancies in children. It simplifies manual methods, reducing calculation time and errors for various orthopedic and growth-related assessments.

**Highlights:** Predict mature height, Calculate bone length, Assess limb length discrepancy, Analyze growth remaining, Plot height on CDC charts, Scanogram calculations, Foot length analysis

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Multiplier free?

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

### Is BoneGauge free?

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

### Which has better reviews, Multiplier or BoneGauge?

BoneGauge is rated higher. Multiplier averages 4.6 out of 5 from 24 ratings, while BoneGauge averages 5.0 from 2 ratings.

### Do Multiplier or BoneGauge have ads?

Neither Multiplier nor BoneGauge 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.*