# Slime Evolution vs Cotton Tree

The clearest difference is rating: Slime Evolution at 4.8 against Cotton Tree's 4.3. Slime Evolution also leads on review sentiment (91% vs 64%) and ratings volume (597 vs 7). Cotton Tree's advantage is update cadence (every 9 days vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Slime Evolution sells 4 one-off in-app purchases and Cotton Tree sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Slime Evolution holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Slime Evolution has 597 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 91% of Slime Evolution's written reviews are positive against 64% of Cotton Tree's.

Slime Evolution ships an update every 2 months, Cotton Tree every 9 days. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Slime Evolution | Cotton Tree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (597 ratings)](https://appshunter.io/ios/app/slime-evolution-raise-slimes/id1131103968/reviews)** | [4.3 (7 ratings)](https://appshunter.io/ios/app/cotton-tree/id1280184224/reviews) |
| Number of ratings | **597** | 7 |
| Positive reviews | **91.2% of reviews** | 63.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 111 MB | 112 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SeHyeon Im](https://appshunter.io/developer/1294084939) | [Jisu Choi](https://appshunter.io/developer/1131103967) |

## What reviewers say

### Slime Evolution

[App page](https://appshunter.io/ios/app/slime-evolution-raise-slimes/id1131103968)

Cultivate a charming slime farm by merging identical slimes to discover new ones. Assign elemental properties like water, fire, or grass to influence their characteristics. Embark on adventures to collect more slimes and treasures, and document your discoveries in a field guide.

**Highlights:** Create new slimes by merging, Assign elemental properties (water, fire, grass), Go on adventures for rewards, Collect slimes in a field guide, Discover unique slime evolution methods

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Gem | $0.99 | one-time |
| 110 Gem | $4.99 | one-time |
| 240 Gem | $9.99 | one-time |
| 1400 Gem | $49.99 | one-time |

**What reviewers like**

- 👍 Cute and relaxing game
- 🎨 Charming art style
- 🕹️ Simple and addictive gameplay
- ⏱️ Good time-killer
- 🌳 Enjoyable exploration and evolution

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 💰 Unbalanced upgrade costs between platforms
- 🔍 Unclear mechanics (e.g. using seeds)
- 🌐 Language/localization issues

**Reported bugs**

- Inability to merge certain slime types
- Disappearing slimes and lost progress
- Ads not working or causing errors

**Requested features**

- Add more types of slimes
- Implement a slime shop/store
- Improve the reward system
- Add more gameplay modes or mini-games
- Enhance the exploration and progression systems


### Cotton Tree

[App page](https://appshunter.io/ios/app/cotton-tree/id1280184224)

A charming idle game where you grow and evolve cotton plants. Touch to pick cotton, combine it to create new varieties, and embark on adventures with your evolved cotton.

**Highlights:** Pick and combine cotton, Grow new cotton varieties, Embark on cotton adventures, Cute and engaging visuals, Idle gameplay mechanics

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Leaf 20EA | $0.99 | one-time |
| 44 fresh leaves | $1.99 | one-time |
| 120 fresh leaves | $4.99 | one-time |
| 260 fresh leaves | $9.99 | one-time |
| 560 fresh leaves | $19.99 | one-time |
| 1500 fresh leaves | $49.99 | one-time |


## Frequently asked questions

### Is Slime Evolution free?

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

### Is Cotton Tree free?

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

### Which has better reviews, Slime Evolution or Cotton Tree?

Slime Evolution is rated higher. Slime Evolution averages 4.8 out of 5 from 597 ratings, while Cotton Tree averages 4.3 from 7 ratings.

### Do Slime Evolution or Cotton Tree have ads?

Both Slime Evolution and Cotton Tree show ads.

### Which is updated more often, Slime Evolution or Cotton Tree?

Slime Evolution ships an update every 2 months, and Cotton Tree every 9 days. Most recently, Slime Evolution was updated on October 22, 2026 and Cotton Tree on October 20, 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.*