# Fitzpatrick's Dermatology, 9/E vs DermGPT

The clearest difference is price: DermGPT at Free against Fitzpatrick's Dermatology, 9/E's $349.99. DermGPT also leads on update cadence (every 10 days vs every 20 months). Fitzpatrick's Dermatology, 9/E's advantage is iOS requirement (10.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

DermGPT is free to download; Fitzpatrick's Dermatology, 9/E costs $349.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fitzpatrick's Dermatology, 9/E ships an update every 20 months, DermGPT every 10 days. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Fitzpatrick's Dermatology, 9/E | DermGPT |
| --- | --- | --- |
| Price | $349.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 10 days** |
| Size | 1.0 GB | 33 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Usatine & Erickson Media LLC](https://appshunter.io/developer/1466894388) | [Kaman Biotechnology, LLC](https://appshunter.io/developer/1591562642) |

## What reviewers say

### Fitzpatrick's Dermatology, 9/E

[App page](https://appshunter.io/ios/app/fitzpatricks-dermatology-9e/id1459149586)

**Features:** macOS Compatibility

**In-app purchases:** none


### DermGPT

[App page](https://appshunter.io/ios/app/dermgpt/id6782643001)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fitzpatrick's Dermatology, 9/E free?

Fitzpatrick's Dermatology, 9/E costs $349.99, with no in-app purchases.

### Is DermGPT free?

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

### Do Fitzpatrick's Dermatology, 9/E or DermGPT have ads?

Neither Fitzpatrick's Dermatology, 9/E nor DermGPT shows ads.

### Which is updated more often, Fitzpatrick's Dermatology, 9/E or DermGPT?

Fitzpatrick's Dermatology, 9/E ships an update every 20 months, and DermGPT every 10 days. Most recently, Fitzpatrick's Dermatology, 9/E was updated on October 26, 2026 and DermGPT on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*