# tkDerm touch vs iOptima

The clearest difference is rating: tkDerm touch at 5.0 against iOptima's 3.4. iOptima's advantage is ratings volume (8 vs 1) and iOS requirement (12.4 vs 15.6). On price, update cadence, ads and in-app purchases 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 holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: iOptima has 8 ratings behind it against 1, so its average is the more settled of the two.

tkDerm touch ships an update every 6 months, iOptima every 5 months. The most recent releases landed on September 7, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | tkDerm touch | iOptima |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tkderm-touch/id392501316/reviews)** | [3.4 (8 ratings)](https://appshunter.io/ios/app/ioptima/id870426158/reviews) |
| Number of ratings | 1 | **8** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 3 MB | 219 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Manabu Inuzuka](https://appshunter.io/developer/392501319) | [Bien-Air Dental SA](https://appshunter.io/developer/496222443) |

## 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


### iOptima

[App page](https://appshunter.io/ios/app/ioptima/id870426158)

Enhance dental procedures with advanced technology. This application integrates with dental units to offer customizable settings for restorative, endodontic, oral surgery, and scaling tasks. It provides pre-programmed sequences and troubleshooting guides for efficient and safe practice.

**Highlights:** Seamlessly adds latest technology to dental units, Customizable settings for speed, torque, and direction, Pre-programmed sequences for endodontics and implantology, Supports restorative, endodontics, oral surgery, and scaling, Integrated troubleshooting guides, Ergonomic iPod touch and iPad mini interface

**In-app purchases:** none


## Frequently asked questions

### Is tkDerm touch free?

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

### Is iOptima free?

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

### Which has better reviews, tkDerm touch or iOptima?

tkDerm touch is rated higher. tkDerm touch averages 5.0 out of 5 from 1 ratings, while iOptima averages 3.4 from 8 ratings.

### Do tkDerm touch or iOptima have ads?

Neither tkDerm touch nor iOptima shows ads.

### Which is updated more often, tkDerm touch or iOptima?

tkDerm touch ships an update every 6 months, and iOptima every 5 months. Most recently, tkDerm touch was updated on September 7, 2026 and iOptima on August 12, 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.*