# Bacterias vs Inside Us

The clearest difference is ads: Inside Us at none against Bacterias's shown. Inside Us also leads on iOS requirement (11.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Bacterias ships an update every 3 months, Inside Us every 2 months. The most recent releases landed on September 24, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | Bacterias | Inside Us |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (205 ratings)](https://appshunter.io/ios/app/bacterias/id1672033845/reviews)** | — |
| Number of ratings | **205** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 241 MB | 85 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Yso Corp](https://appshunter.io/developer/659815325) | [ALOTEQ SP Z O O](https://appshunter.io/developer/1503970130) |

## What reviewers say

### Bacterias

[App page](https://appshunter.io/ios/app/bacterias/id1672033845)

Create unique monsters by injecting bacteria into creatures. Discover new species and expand your collection of bizarre beings. A simple yet engaging game for those who enjoy creature creation and collection.

**Highlights:** Inject bacteria into creatures, Create unique monsters, Discover new species, Collect monsters

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

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and creative game
- 👍 Original game concept
- 👍 Good for kids
- 👍 Engaging gameplay
- 👍 Interesting fight sequence

**What reviewers complain about**

- ❌ Excessive ads
- ❌ Frequent ads
- ❌ Ads interrupt gameplay
- ❌ Glitchy gameplay
- ❌ Game lags significantly

**Reported bugs**

- Monster gets too big in battle
- Monster falls through the ground
- Game lags heavily
- Game won't let users play
- Too many glitches

**Requested features**

- Add more animals (lion, elephant, zebra)
- Add decorated cages for monsters
- Add a battlefield to challenge other people
- Add more DNA
- Add more money to spend


### Inside Us

[App page](https://appshunter.io/ios/app/inside-us-bacteria-rush/id6443545809)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bacterias free?

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

### Is Inside Us free?

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

### Do Bacterias or Inside Us have ads?

Bacterias shows ads; Inside Us does not.

### Which is updated more often, Bacterias or Inside Us?

Bacterias ships an update every 3 months, and Inside Us every 2 months. Most recently, Bacterias was updated on September 24, 2026 and Inside Us on August 12, 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.*