# Chikuwabu! vs Contagious Mayhem

The clearest difference is in-app purchases: Contagious Mayhem at none against Chikuwabu!'s 1. Contagious Mayhem also leads on update cadence (every 2 months vs every 41 months) and iOS requirement (12.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Chikuwabu! sells 1 one-off in-app purchase. Contagious Mayhem asks for nothing beyond the download.

Chikuwabu! ships an update every 41 months, Contagious Mayhem every 2 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Chikuwabu! | Contagious Mayhem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 2 months** |
| Size | 32 MB | 147 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Hiroyuki Sasayama](https://appshunter.io/developer/713453961) | [Satakunnan Ammattikorkeakoulu Oy](https://appshunter.io/developer/1607646667) |

## What reviewers say

### Chikuwabu!

[App page](https://appshunter.io/ios/app/chikuwabu/id6446472049)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Stages | $2.99 | one-time |


### Contagious Mayhem

[App page](https://appshunter.io/ios/app/contagious-mayhem/id6472609324)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chikuwabu! free?

Chikuwabu! is free to download, with in-app purchases available.

### Is Contagious Mayhem free?

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

### Do Chikuwabu! or Contagious Mayhem have ads?

Neither Chikuwabu! nor Contagious Mayhem shows ads.

### Which is updated more often, Chikuwabu! or Contagious Mayhem?

Chikuwabu! ships an update every 41 months, and Contagious Mayhem every 2 months. Most recently, Chikuwabu! was updated on October 25, 2026 and Contagious Mayhem on October 18, 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.*