# Chicken Evolution | Merge vs Slime Evolution

The clearest difference is ratings volume: Chicken Evolution | Merge at 3K against Slime Evolution's 596. Slime Evolution's advantage is iOS requirement (13.0 vs 15.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Chicken Evolution | Merge sells 12 one-off in-app purchases and Slime Evolution sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Chicken Evolution | Merge against 4.8 for Slime Evolution. That said, the two scores are not equally well evidenced: Chicken Evolution | Merge has 3K ratings behind it against 596, so its average is the more settled of the two. Written reviews are what separate them: 90% of Chicken Evolution | Merge's written reviews are positive against 92% of Slime Evolution's.

Chicken Evolution | Merge ships an update every 5 weeks, Slime Evolution every 2 months. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Chicken Evolution | Merge | Slime Evolution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3K ratings)](https://appshunter.io/ios/app/chicken-evolution-merge/id1050691440/reviews) | [4.8 (596 ratings)](https://appshunter.io/ios/app/slime-evolution-raise-slimes/id1131103968/reviews) |
| Number of ratings | **3K** | 596 |
| Positive reviews | 90.4% of reviews | **91.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 156 MB | 111 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) | [SeHyeon Im](https://appshunter.io/developer/1294084939) |

## What reviewers say

### Chicken Evolution | Merge

[App page](https://appshunter.io/ios/app/chicken-evolution-merge/id1050691440)

Combine chickens to evolve them into curious, exotic, and bizarre forms. Tap chickens to earn coins, buy new creatures, and discover numerous stages and endings in this unique merge and clicker game.

**Highlights:** Combine similar chickens, Discover new chicken forms, Earn chicken poop coins, Buy new creatures, Tap chickens for coins, Multiple stages and endings, Upgrades

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ads removal | $0.99 | one-time |
| pack of rubies | $1.99 | one-time |
| instant coins doubler | $1.99 | one-time |
| small diamond pack | $1.99 | one-time |
| pack of diamonds | $1.99 | one-time |
| small frost gem pack | $1.99 | one-time |
| good diamond pack | $4.99 | one-time |
| big pack of rubies | $5.99 | one-time |
| income doubler | $5.99 | one-time |
| Trinket | $6.99 | one-time |
| starter bundle | $9.99 | one-time |
| great diamond pack | $9.99 | one-time |

**What reviewers like**

- 👍 Fun and addictive gameplay
- 🐓 Cute and entertaining chicken designs
- 💰 Rewarding progression and earning system
- 🕹️ Simple and easy-to-understand mechanics

**What reviewers complain about**

- 🔍 Too many ads interrupting gameplay
- 🕰️ Slow progression and long wait times
- 🔒 Lack of offline/no-wifi functionality
- 🐛 Occasional crashes and freezing issues

**Reported bugs**

- Game freezes when a crate falls
- Unable to progress to new worlds after completing the universe

**Requested features**

- Add more evolution types and planets to explore
- Implement an auto-merge feature to streamline gameplay
- Reduce the frequency and intrusiveness of ads
- Introduce a paid version with no ads or additional content


### 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


## Frequently asked questions

### Is Chicken Evolution | Merge free?

Chicken Evolution | Merge is free to download, with in-app purchases available.

### Is Slime Evolution free?

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

### Which has better reviews, Chicken Evolution | Merge or Slime Evolution?

Chicken Evolution | Merge and Slime Evolution are both rated 4.8 out of 5 on the App Store, from 3K and 596 ratings respectively.

### Do Chicken Evolution | Merge or Slime Evolution have ads?

Both Chicken Evolution | Merge and Slime Evolution show ads.

### Which is updated more often, Chicken Evolution | Merge or Slime Evolution?

Chicken Evolution | Merge ships an update every 5 weeks, and Slime Evolution every 2 months. Most recently, Chicken Evolution | Merge was updated on September 28, 2026 and Slime Evolution on September 27, 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.*