# Dent Pad vs Medical KOS

The clearest difference is in-app purchases: Dent Pad at none against Medical KOS's 10. Dent Pad also leads on iOS requirement (9.0 vs 12.0). Medical KOS's advantage is device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Medical KOS sells 9 one-off in-app purchases. Dent Pad asks for nothing beyond the download.

Dent Pad ships an update every 3 months, Medical KOS every 2 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Dent Pad | Medical KOS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 3 MB | 17 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Life Sciences Computing Corporation](https://appshunter.io/developer/395090434) | [META Corporation Japan Ltd.](https://appshunter.io/developer/589751339) |

## What reviewers say

### Dent Pad

[App page](https://appshunter.io/ios/app/dent-pad/id540328992)

**Features:** macOS Compatibility

**In-app purchases:** none


### Medical KOS

[App page](https://appshunter.io/ios/app/medical-kos/id654909468)

Explore detailed 3D biological and medical content, including microscopic images and CT scans. Interact with models to adjust angles, size, and transparency for immersive learning. Supports viewing on mobile devices or external 3D displays.

**Highlights:** Stereoscopic 3D viewing, Interactive 3D model adjustment, External 3D display support, Content view history, 3D electron microscopy images, 3D CT scans and movies

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| META Biomedical CG Library 27 Human Brain Structure | $0.99 | one-time |
| META Biomedical CG Library 28 Evolution of the Vertebrate Brain | $0.99 | one-time |
| Kidney:Stereo SEM Atlas | $3.99 | one-time |
| dyed skull with annotation | $14.99 | one-time |
| Temporal bone fusion images... | $14.99 | one-time |
| Temporal bone dissection (EN) | $14.99 | one-time |
| Middle fossa layer dissection_ | $14.99 | one-time |
| Anterior petrosal approach | $19.99 | one-time |
| 上肢の関節の動的解剖　-筋骨格系を学ぶシリーズ３- | $24.99 | one-time |


## Frequently asked questions

### Is Dent Pad free?

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

### Is Medical KOS free?

Medical KOS is free to download, with in-app purchases available.

### Do Dent Pad or Medical KOS have ads?

Neither Dent Pad nor Medical KOS shows ads.

### Which is updated more often, Dent Pad or Medical KOS?

Dent Pad ships an update every 3 months, and Medical KOS every 2 months. Most recently, Dent Pad was updated on October 10, 2026 and Medical KOS on October 7, 2026.

---

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