# 四字熟語チャレンジ vs Slitherlink

The clearest difference is update cadence: Slitherlink at weekly against 四字熟語チャレンジ's every 17 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

四字熟語チャレンジ ships an update every 17 months, Slitherlink weekly. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 四字熟語チャレンジ | Slitherlink |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 17 months | **Weekly** |
| Size | 82 MB | 97 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [珠峰 徐](https://appshunter.io/developer/1246695755) | [nineclove](https://appshunter.io/developer/305610030) |

## What reviewers say

### 四字熟語チャレンジ

[App page](https://appshunter.io/ios/app/id6746226382)

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

**In-app purchases:** none


### Slitherlink

[App page](https://appshunter.io/ios/app/slitherlink-number-loop/id6759080379)

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

**In-app purchases:** none


## Frequently asked questions

### Is 四字熟語チャレンジ free?

四字熟語チャレンジ is free to download, with no in-app purchases.

### Is Slitherlink free?

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

### Do 四字熟語チャレンジ or Slitherlink have ads?

Both 四字熟語チャレンジ and Slitherlink show ads.

### Which is updated more often, 四字熟語チャレンジ or Slitherlink?

四字熟語チャレンジ ships an update every 17 months, and Slitherlink weekly. Most recently, 四字熟語チャレンジ was updated on October 26, 2026 and Slitherlink on October 28, 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.*