# tkDerm touch vs Douglas 3D Sizing

The clearest difference is update cadence: Douglas 3D Sizing at every 2 months against tkDerm touch's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

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

tkDerm touch ships an update every 6 months, Douglas 3D Sizing every 2 months. The most recent releases landed on September 7, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | tkDerm touch | Douglas 3D Sizing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tkderm-touch/id392501316/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 3 MB | 126 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Manabu Inuzuka](https://appshunter.io/developer/392501319) | [TechMed 3D](https://appshunter.io/developer/964196047) |

## What reviewers say

### tkDerm touch

[App page](https://appshunter.io/ios/app/tkderm-touch/id392501316)

This app provides dermatologists with a digital database to store, organize, and search clinical photos of skin conditions. It allows for efficient retrieval of images based on patient names, diagnoses, or eruption distribution, aiding in clinical practice and patient follow-up.

**Highlights:** Store and search dermatological photos, Local or server-based database options, Use internal or digital cameras, Automatic data mapping via timestamps, Search by patient name, diagnosis, or eruption distribution, Side-by-side photo comparison, Image zooming and pinching for detail

**Features:** macOS Compatibility

**In-app purchases:** none


### Douglas 3D Sizing

[App page](https://appshunter.io/ios/app/douglas-3d-sizing/id1593445668)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is tkDerm touch free?

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

### Is Douglas 3D Sizing free?

Douglas 3D Sizing is free to download, with no in-app purchases.

### Do tkDerm touch or Douglas 3D Sizing have ads?

Neither tkDerm touch nor Douglas 3D Sizing shows ads.

### Which is updated more often, tkDerm touch or Douglas 3D Sizing?

tkDerm touch ships an update every 6 months, and Douglas 3D Sizing every 2 months. Most recently, tkDerm touch was updated on September 7, 2026 and Douglas 3D Sizing on September 15, 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.*