# 世界モンスター vs 虫くい漢字研究所

The clearest difference is iOS requirement: 世界モンスター at 11.0 against 虫くい漢字研究所's 13.0. 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.

世界モンスター ships an update every 2 months, 虫くい漢字研究所 every 4 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 世界モンスター | 虫くい漢字研究所 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 107 MB | 149 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [FUKUROU](https://appshunter.io/developer/1603805098) |

## What reviewers say

### 世界モンスター

[App page](https://appshunter.io/ios/app/id1552345985)

**Features:** macOS Compatibility

**In-app purchases:** none


### 虫くい漢字研究所

[App page](https://appshunter.io/ios/app/id6443828744)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 世界モンスター free?

世界モンスター is free to download, with no in-app purchases.

### Is 虫くい漢字研究所 free?

虫くい漢字研究所 is free to download, with no in-app purchases.

### Do 世界モンスター or 虫くい漢字研究所 have ads?

Both 世界モンスター and 虫くい漢字研究所 show ads.

### Which is updated more often, 世界モンスター or 虫くい漢字研究所?

世界モンスター ships an update every 2 months, and 虫くい漢字研究所 every 4 months. Most recently, 世界モンスター was updated on November 7, 2026 and 虫くい漢字研究所 on November 3, 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.*