# Multiplier HD vs Inside Joint

The clearest difference is device support: Inside Joint at 3 against Multiplier HD's 1. Multiplier HD's advantage is iOS requirement (8.0 vs 13.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Multiplier HD ships an update every 7 months, Inside Joint every 12 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Multiplier HD | Inside Joint |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/multiplier-hd/id460343565/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 12 months |
| Monetization | Free | — |
| Size | 56 MB | 32 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [LifeBridge Health](https://appshunter.io/developer/460335164) | [Fidia Pharma Middle East](https://appshunter.io/developer/1347689347) |

## What reviewers say

### Multiplier HD

[App page](https://appshunter.io/ios/app/multiplier-hd/id460343565)

This medical app automates complex calculations for predicting a child's mature height and bone length. It offers a comprehensive suite of tools for limb length discrepancy, growth remaining, and skeletal age determination, reducing calculation time and potential errors for healthcare professionals.

**Highlights:** Predict mature height and bone length, Calculate limb length discrepancy, Estimate growth remaining, Analyze achondroplasia and fetal growth, Perform scanogram calculations, Determine skeletal age via radiographs, Access medical figures and bibliographies

**Features:** macOS Compatibility

**In-app purchases:** none


### Inside Joint

[App page](https://appshunter.io/ios/app/inside-joint/id1537564085)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Multiplier HD free?

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

### Is Inside Joint free?

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

### Do Multiplier HD or Inside Joint have ads?

Neither Multiplier HD nor Inside Joint shows ads.

### Which is updated more often, Multiplier HD or Inside Joint?

Multiplier HD ships an update every 7 months, and Inside Joint every 12 months. Most recently, Multiplier HD was updated on November 1, 2026 and Inside Joint on October 27, 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.*