# Multiplier vs Easy Bone Age Atlas

The clearest difference is review sentiment: Multiplier at 83% against Easy Bone Age Atlas's 0%. Multiplier also leads on rating (4.6 vs 1.0) and in-app purchases (none vs 3). On price and update cadence there is nothing between them.

Both are free to download. Easy Bone Age Atlas sells 3 in-app purchases, starting at $4.99 per month. Multiplier asks for nothing beyond the download.

Multiplier holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Multiplier has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Multiplier's written reviews are positive against 0% of Easy Bone Age Atlas's.

Multiplier ships an update every 6 months, Easy Bone Age Atlas every 8 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Multiplier | Easy Bone Age Atlas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (24 ratings)](https://appshunter.io/ios/app/multiplier/id460335161/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/easy-bone-age-atlas/id6748095473/reviews) |
| Number of ratings | **24** | 1 |
| Positive reviews | **83.3% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 62 MB | 49 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [LifeBridge Health](https://appshunter.io/developer/460335164) | [HVALABS, LLC](https://appshunter.io/developer/1875666107) |

## 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


### Easy Bone Age Atlas

[App page](https://appshunter.io/ios/app/easy-bone-age-atlas/id6748095473)

A clinical reference tool for evaluating skeletal maturity in children and adolescents. It offers detailed images and a height prediction calculator to aid healthcare providers in assessing growth and providing insights to families.

**Highlights:** Detailed skeletal development images, Age-appropriate image comparison, Adult height prediction calculator, User-friendly clinical reference, Supports boys and girls 10 months to 18 years

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Annual Premium Discount | $19.99 | per year |
| Annual Premium | $34.99 | per year |


## Frequently asked questions

### Is Multiplier free?

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

### Is Easy Bone Age Atlas free?

Easy Bone Age Atlas is free to download, with in-app purchases available.

### Which has better reviews, Multiplier or Easy Bone Age Atlas?

Multiplier is rated higher. Multiplier averages 4.6 out of 5 from 24 ratings, while Easy Bone Age Atlas averages 1.0 from 1 ratings.

### Do Multiplier or Easy Bone Age Atlas have ads?

Easy Bone Age Atlas shows ads; Multiplier does not.

### Which is updated more often, Multiplier or Easy Bone Age Atlas?

Multiplier ships an update every 6 months, and Easy Bone Age Atlas every 8 months. Most recently, Multiplier was updated on November 1, 2026 and Easy Bone Age Atlas on November 5, 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.*