# Contagious Mayhem vs Double Knight

The clearest difference is in-app purchases: Contagious Mayhem at none against Double Knight's 1. Contagious Mayhem also leads on iOS requirement (12.0 vs 15.0). Double Knight's advantage is update cadence (every 9 days vs every 2 months). On price, ads and device support there is nothing between them.

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

Contagious Mayhem ships an update every 2 months, Double Knight every 9 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Contagious Mayhem | Double Knight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/double-knight/id6774816904/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 147 MB | 432 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Satakunnan Ammattikorkeakoulu Oy](https://appshunter.io/developer/1607646667) | [Stickerbush Studios LLC](https://appshunter.io/developer/1775973152) |

## What reviewers say

### Contagious Mayhem

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Double Knight

[App page](https://appshunter.io/ios/app/double-knight/id6774816904)

Embark on a chaotic roguelike adventure as a brave knight battling hordes of undead monsters in a ghastly dungeon. Reclaim your stolen chicken by doubling your strength and navigating treacherous traps and fiery obstacles. Each run offers a unique experience with ever-changing dungeons and power-up opportunities.

**Highlights:** Chaotic action roguelike gameplay, Reclaim stolen chicken objective, Battle swarms of undead monsters, Navigate traps and fire walls, Double your knight's numbers, Power up in serene forest groves, Ever-changing dungeon layouts

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Game | $4.99 | one-time |


## Frequently asked questions

### Is Contagious Mayhem free?

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

### Is Double Knight free?

Double Knight is free to download, with in-app purchases available.

### Do Contagious Mayhem or Double Knight have ads?

Neither Contagious Mayhem nor Double Knight shows ads.

### Which is updated more often, Contagious Mayhem or Double Knight?

Contagious Mayhem ships an update every 2 months, and Double Knight every 9 days. Most recently, Contagious Mayhem was updated on November 4, 2026 and Double Knight on October 31, 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.*