# Bacteria vs CTMayor Premium

The clearest difference is price: Bacteria at Free against CTMayor Premium's $3.99. CTMayor Premium's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 18.4). On update cadence, ads and device support there is nothing between them.

Bacteria is free to download; CTMayor Premium costs $3.99 up front. Bacteria sells 1 one-off in-app purchase. CTMayor Premium asks for nothing beyond the download.

Bacteria ships an update every 3 weeks, CTMayor Premium monthly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Bacteria | CTMayor Premium |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/ctmayor-premium/id6748828234/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Paid |
| Size | 19 MB | 391 MB |
| Requires iOS | 18.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [SAN JUNIPERO](https://appshunter.io/developer/1773330083) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### Bacteria

[App page](https://appshunter.io/ios/app/bacteria-strategy-game/id6746348928)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mode Premium | $1.99 | one-time |


### CTMayor Premium

[App page](https://appshunter.io/ios/app/ctmayor-premium/id6748828234)

Engage in deep city simulation across four distinct modes: ancient Rome, modern urban development, transport management, and hospital administration. Experience full access with no ads and offline play.

**Highlights:** Ancient Rome city building, Modern city development, Transport company management, Hospital simulation, Ad-free experience, Offline play

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

**In-app purchases:** none


## Frequently asked questions

### Is Bacteria free?

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

### Is CTMayor Premium free?

CTMayor Premium costs $3.99, with no in-app purchases.

### Do Bacteria or CTMayor Premium have ads?

Neither Bacteria nor CTMayor Premium shows ads.

### Which is updated more often, Bacteria or CTMayor Premium?

Bacteria ships an update every 3 weeks, and CTMayor Premium monthly. Most recently, Bacteria was updated on November 5, 2026 and CTMayor Premium on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*