# Invasion vs Contagious Mayhem

The clearest difference is ads: Contagious Mayhem at none against Invasion's shown. Contagious Mayhem also leads on update cadence (every 2 months vs every 14 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Invasion ships an update every 14 months, Contagious Mayhem every 2 months. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Invasion | Contagious Mayhem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Every 2 months** |
| Size | 19 MB | 147 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Safak Yalcinkaya](https://appshunter.io/developer/1626278233) | [Satakunnan Ammattikorkeakoulu Oy](https://appshunter.io/developer/1607646667) |

## What reviewers say

### Invasion

[App page](https://appshunter.io/ios/app/invasion-first-touch/id1626290765)

**Features:** macOS Compatibility

**In-app purchases:** none


### Contagious Mayhem

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invasion free?

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

### Is Contagious Mayhem free?

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

### Do Invasion or Contagious Mayhem have ads?

Invasion shows ads; Contagious Mayhem does not.

### Which is updated more often, Invasion or Contagious Mayhem?

Invasion ships an update every 14 months, and Contagious Mayhem every 2 months. Most recently, Invasion was updated on October 3, 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.*