# Bone Age vs Easy Bone Age Atlas

The clearest difference is price: Easy Bone Age Atlas at Free against Bone Age's $7.99. Bone Age's advantage is rating (2.3 vs 1.0) and in-app purchases (none vs 3).

Easy Bone Age Atlas is free to download; Bone Age costs $7.99 up front. Easy Bone Age Atlas sells 3 in-app purchases, starting at $4.99 per month. Bone Age asks for nothing beyond the download.

Bone Age holds the better App Store score, 2.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 25% of Bone Age's written reviews are positive against 0% of Easy Bone Age Atlas's.

Bone Age ships an update every 3 months, Easy Bone Age Atlas every 8 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Bone Age | Easy Bone Age Atlas |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/bone-age/id665745944/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/easy-bone-age-atlas/id6748095473/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 15 MB | 49 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Simon Chapman](https://appshunter.io/developer/629291277) | [HVALABS, LLC](https://appshunter.io/developer/1875666107) |

## What reviewers say

### Bone Age

[App page](https://appshunter.io/ios/app/bone-age/id665745944)

This medical app calculates bone age using the Tanner-Whitehouse method, offering TWII and TWIII references for 'RUS', 'TW20', and carpal scores directly in a clinical setting.

**Highlights:** Tanner-Whitehouse method calculation, TWII and TWIII references, RUS score calculation, TW20 score calculation, Carpal score calculation, In-clinic use

**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 Bone Age free?

Bone Age costs $7.99, 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, Bone Age or Easy Bone Age Atlas?

Bone Age is rated higher. Bone Age averages 2.3 out of 5 from 3 ratings, while Easy Bone Age Atlas averages 1.0 from 1 ratings.

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

Easy Bone Age Atlas shows ads; Bone Age does not.

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

Bone Age ships an update every 3 months, and Easy Bone Age Atlas every 8 months. Most recently, Bone Age was updated on November 6, 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.*