# Actioforma KOS vs KINRAKU

The clearest difference is in-app purchases: KINRAKU at none against Actioforma KOS's 2. KINRAKU also leads on update cadence (every 3 weeks vs every 2 months). Actioforma KOS's advantage is ads (none vs shown) and iOS requirement (7.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. Actioforma KOS sells 2 one-off in-app purchases. KINRAKU asks for nothing beyond the download.

Actioforma KOS ships an update every 2 months, KINRAKU every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Actioforma KOS | KINRAKU |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 18 MB | 24 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [META Corporation Japan Ltd.](https://appshunter.io/developer/589751339) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## 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 |


### KINRAKU

[App page](https://appshunter.io/ios/app/kinraku/id6764113422)

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

**In-app purchases:** none


## Frequently asked questions

### Is Actioforma KOS free?

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

### Is KINRAKU free?

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

### Do Actioforma KOS or KINRAKU have ads?

KINRAKU shows ads; Actioforma KOS does not.

### Which is updated more often, Actioforma KOS or KINRAKU?

Actioforma KOS ships an update every 2 months, and KINRAKU every 3 weeks. Most recently, Actioforma KOS was updated on October 23, 2026 and KINRAKU on October 25, 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.*