# Antibiotic X vs Contagious Mayhem

The clearest difference is in-app purchases: Contagious Mayhem at none against Antibiotic X's 1. Antibiotic X's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (9.0 vs 12.0). On price, ads and device support there is nothing between them.

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

Antibiotic X ships an update every 4 weeks, Contagious Mayhem every 2 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Antibiotic X | Contagious Mayhem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/antibiotic-x/id1188028152/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 147 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 12+ |
| Developer | [Turker GUNEY](https://appshunter.io/developer/1080204840) | [Satakunnan Ammattikorkeakoulu Oy](https://appshunter.io/developer/1607646667) |

## What reviewers say

### Antibiotic X

[App page](https://appshunter.io/ios/app/antibiotic-x/id1188028152)

Engage in an extraordinary combat experience against invading microbes. Utilize powerful antibiotics to destroy micro bandits across diverse universes and unusual adventures. Upgrade your weapons, energy, and shields to achieve victory.

**Highlights:** Fight microbes, Destroy micro bandits, 3 different micro rogue universes, 24 unusual episodes, Upgradeable guns, Upgradeable energy and shield, Game Center scoreboard

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Free | $0.99 | 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 Antibiotic X free?

Antibiotic X 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 Antibiotic X or Contagious Mayhem have ads?

Neither Antibiotic X nor Contagious Mayhem shows ads.

### Which is updated more often, Antibiotic X or Contagious Mayhem?

Antibiotic X ships an update every 4 weeks, and Contagious Mayhem every 2 months. Most recently, Antibiotic X was updated on November 2, 2026 and Contagious Mayhem on November 4, 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.*