# Actioforma KOS vs 日本文学クイズ

The clearest difference is ads: Actioforma KOS at none against 日本文学クイズ's shown. Actioforma KOS also leads on update cadence (every 2 months vs every 9 months) and iOS requirement (7.0 vs 17.6). On price, 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 日本文学クイズ sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Actioforma KOS ships an update every 2 months, 日本文学クイズ every 9 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Actioforma KOS | 日本文学クイズ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free | — |
| Size | 18 MB | 13 MB |
| Requires iOS | **7.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [META Corporation Japan Ltd.](https://appshunter.io/developer/589751339) | [SPARKLE AND, K.K.](https://appshunter.io/developer/1572402899) |

## 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 |


### 日本文学クイズ

[App page](https://appshunter.io/ios/app/id6744573534)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 週額サブスクリプション | $1.99 | per 7 days |
| 月額サブスクリプション | $2.99 | per month |
| 買い切りプラン | $4.99 | one-time |


## Frequently asked questions

### Is Actioforma KOS free?

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

### Is 日本文学クイズ free?

日本文学クイズ is free to download, with in-app purchases available.

### Do Actioforma KOS or 日本文学クイズ have ads?

日本文学クイズ shows ads; Actioforma KOS does not.

### Which is updated more often, Actioforma KOS or 日本文学クイズ?

Actioforma KOS ships an update every 2 months, and 日本文学クイズ every 9 months. Most recently, Actioforma KOS was updated on October 23, 2026 and 日本文学クイズ 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.*