# Actioforma KOS vs 人工呼吸器ナビ

The clearest difference is update cadence: 人工呼吸器ナビ at every 3 weeks against Actioforma KOS's every 2 months. Actioforma KOS's advantage is iOS requirement (7.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Actioforma KOS sells 2 one-off in-app purchases and 人工呼吸器ナビ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Actioforma KOS ships an update every 2 months, 人工呼吸器ナビ every 3 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Actioforma KOS | 人工呼吸器ナビ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 18 MB | 17 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [META Corporation Japan Ltd.](https://appshunter.io/developer/589751339) | [Takahiro Ito](https://appshunter.io/developer/6787806782) |

## What reviewers say

### Actioforma KOS

[App page](https://appshunter.io/ios/app/actioforma-kos/id589751336)

Explore biology and medical concepts with immersive 3D content, including electron microscopy and CT scans. View on your device or connect to a 3D TV for enhanced learning. Interactive features allow detailed examination of biological structures.

**Highlights:** 3D electron microscopic images, Interactive 3D CT content, Adjustable view angles, size, and transparency, Stereoscopic viewing with/without glasses, External display support for 3D TVs/projectors, Content view history, Display user's 3D content

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SEM Section of the Rat Liver | $0.99 | one-time |
| CT image of Japanese Rat Snake | $0.99 | one-time |


### 人工呼吸器ナビ

[App page](https://appshunter.io/ios/app/id6799628706)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| フル版 | $5.99 | one-time |


## Frequently asked questions

### Is Actioforma KOS free?

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

### Is 人工呼吸器ナビ free?

人工呼吸器ナビ is free to download, with in-app purchases available.

### Do Actioforma KOS or 人工呼吸器ナビ have ads?

Neither Actioforma KOS nor 人工呼吸器ナビ shows ads.

### Which is updated more often, Actioforma KOS or 人工呼吸器ナビ?

Actioforma KOS ships an update every 2 months, and 人工呼吸器ナビ every 3 weeks. Most recently, Actioforma KOS was updated on October 23, 2026 and 人工呼吸器ナビ on October 24, 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.*