# Derm DDx vs Bone Age Height Predictor

The clearest difference is price: Derm DDx at Free against Bone Age Height Predictor's $2.99. Derm DDx also leads on iOS requirement (15.0 vs 18.6). Bone Age Height Predictor's advantage is in-app purchases (none vs 1) and chart position (#193 vs unranked). On ads and device support there is nothing between them.

Derm DDx is free to download; Bone Age Height Predictor costs $2.99 up front. Derm DDx sells 1 one-off in-app purchase. Bone Age Height Predictor asks for nothing beyond the download.

## The numbers

| Metric | Derm DDx | Bone Age Height Predictor |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/derm-ddx/id6499524221/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | **#193** |
| Size | 10 MB | 44 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Arthur Uber](https://appshunter.io/developer/909508878) |

## What reviewers say

### Derm DDx

[App page](https://appshunter.io/ios/app/derm-ddx/id6499524221)

This app provides visual, point-of-care guidance for diagnosing skin disorders. It features a large database of high-resolution images, allowing users to compare variations, zoom in, and access clinical history and treatment options for over 160 dermatologic conditions.

**Highlights:** 650+ high-quality dermatology images, Guidance for 160+ dermatologic conditions, Side-by-side image variations, Zoomable high-resolution images, Clinical history and treatment options, Cross-referencing to differential diagnoses, Full text search and custom notes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dermatology DDx | $69.99 | one-time |


### Bone Age Height Predictor

[App page](https://appshunter.io/ios/app/bone-age-height-predictor/id6754620451)

**Currently charting:** #193 Top Paid · Medical (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is Derm DDx free?

Derm DDx is free to download, with in-app purchases available.

### Is Bone Age Height Predictor free?

Bone Age Height Predictor costs $2.99, with no in-app purchases.

### Do Derm DDx or Bone Age Height Predictor have ads?

Neither Derm DDx nor Bone Age Height Predictor 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.*