# Bacterias vs Collider

The clearest difference is review sentiment: Collider at 100% against Bacterias's 42%. Collider also leads on rating (5.0 vs 3.9) and ads (none vs shown). Bacterias's advantage is price (Free vs $0.99) and ratings volume (210 vs 1). On in-app purchases and iOS requirement there is nothing between them.

Bacterias is free to download; Collider costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Collider holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Bacterias has 210 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 42% of Bacterias's written reviews are positive against 100% of Collider's.

Bacterias ships an update every 3 months, Collider every 8 days. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Bacterias | Collider |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.9 (210 ratings)](https://appshunter.io/ios/app/bacterias/id1672033845/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/collider-slide-and-smash/id6781842001/reviews)** |
| Number of ratings | **210** | 1 |
| Positive reviews | 41.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 253 MB | 2 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Yso Corp](https://appshunter.io/developer/659815325) | [Luciditas LLC](https://appshunter.io/developer/6781842003) |

## 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


### Collider

[App page](https://appshunter.io/ios/app/collider-slide-and-smash/id6781842001)

A minimalist number puzzle game where you slide tiles to merge matching numbers. Aim to reach a target number by strategically combining tiles, with options for different grid sizes and an undo feature. Enjoy a distraction-free experience with smooth animations and haptic feedback.

**Highlights:** Tile sliding and merging, Multiple grid sizes (4x4, 5x5), Undo last move functionality, Clean, distraction-free design, Smooth animations and haptic feedback, Hidden surprise unlockable

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

**In-app purchases:** none


## Frequently asked questions

### Is Bacterias free?

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

### Is Collider free?

Collider costs $0.99, with no in-app purchases.

### Which has better reviews, Bacterias or Collider?

Collider is rated higher. Bacterias averages 3.9 out of 5 from 210 ratings, while Collider averages 5.0 from 1 ratings.

### Do Bacterias or Collider have ads?

Bacterias shows ads; Collider does not.

### Which is updated more often, Bacterias or Collider?

Bacterias ships an update every 3 months, and Collider every 8 days. Most recently, Bacterias was updated on October 25, 2026 and Collider on October 8, 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.*