# Phage Invaders vs Bacterias

The clearest difference is rating: Phage Invaders at 4.4 against Bacterias's 3.8. Phage Invaders also leads on ads (none vs shown) and update cadence (every 4 days vs every 3 months). Bacterias's advantage is ratings volume (205 vs 8). On price, 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.

Phage Invaders holds the better App Store score, 4.4 against 3.8. That said, the two scores are not equally well evidenced: Bacterias has 205 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 67% of Phage Invaders's written reviews are positive against 40% of Bacterias's.

Phage Invaders ships an update every 4 days, Bacterias every 3 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Phage Invaders | Bacterias |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/phage-invaders/id1460866913/reviews)** | [3.8 (205 ratings)](https://appshunter.io/ios/app/bacterias/id1672033845/reviews) |
| Number of ratings | 8 | **205** |
| Positive reviews | **66.7% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 113 MB | 241 MB |
| Requires iOS | **12** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Innovative Genomics Institute](https://appshunter.io/developer/1460866912) | [Yso Corp](https://appshunter.io/developer/659815325) |

## What reviewers say

### Phage Invaders

[App page](https://appshunter.io/ios/app/phage-invaders/id1460866913)

Defend the city of Bacterium from viral invaders by controlling a Cas9-inspired hero. Slash invading DNA and viral parts to protect the city. Features progressive levels and an infinite survival mode.

**Highlights:** Control Cas9-inspired hero, Slash invading DNA, Progressive difficulty levels, Survival mode, High score leaderboards

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Phage Invaders free?

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

### Is Bacterias free?

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

### Which has better reviews, Phage Invaders or Bacterias?

Phage Invaders is rated higher. Phage Invaders averages 4.4 out of 5 from 8 ratings, while Bacterias averages 3.8 from 205 ratings.

### Do Phage Invaders or Bacterias have ads?

Bacterias shows ads; Phage Invaders does not.

### Which is updated more often, Phage Invaders or Bacterias?

Phage Invaders ships an update every 4 days, and Bacterias every 3 months. Most recently, Phage Invaders was updated on October 7, 2026 and Bacterias on October 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.*