# Cow Evolution vs Birds Evolution Merge

The clearest difference is ratings volume: Cow Evolution at 24K against Birds Evolution Merge's 852. Cow Evolution also leads on update cadence (every 2 weeks vs every 5 weeks). Birds Evolution Merge's advantage is review sentiment (87% vs 79%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Cow Evolution sells 12 one-off in-app purchases and Birds Evolution Merge sells 14 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 — 4.7 for Cow Evolution against 4.7 for Birds Evolution Merge. That said, the two scores are not equally well evidenced: Cow Evolution has 24K ratings behind it against 852, so its average is the more settled of the two. Written reviews are what separate them: 79% of Cow Evolution's written reviews are positive against 87% of Birds Evolution Merge's.

Cow Evolution ships an update every 2 weeks, Birds Evolution Merge every 5 weeks. The most recent releases landed on October 30, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Cow Evolution | Birds Evolution Merge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (24K ratings)](https://appshunter.io/ios/app/cow-evolution-merge-to-evolve/id901864337/reviews)** | [4.7 (852 ratings)](https://appshunter.io/ios/app/birds-evolution-merge/id1171392372/reviews) |
| Number of ratings | **24K** | 852 |
| Positive reviews | 79.3% of reviews | **87.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 156 MB | 156 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) |

## What reviewers say

### Cow Evolution

[App page](https://appshunter.io/ios/app/cow-evolution-merge-to-evolve/id901864337)

Merge cows to discover new mutant creatures and build a unique farm. Collect resources, upgrade equipment, and customize your animals with various accessories. Explore different worlds and unlock mysterious species in this idle clicker game.

**Highlights:** Merge cows to discover mutant creatures, Collect coins and crystals, Upgrade farm equipment, Customize animals with accessories, Discover new worlds and species, Idle clicker gameplay

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ads removal | $0.99 | one-time |
| pack with 60 diamonds | $1.99 | one-time |
| instant coins doubler | $1.99 | one-time |
| pack of diamonds | $1.99 | one-time |
| pack of rubies | $1.99 | one-time |
| small frost gem pack | $1.99 | one-time |
| Promo Bundles Very High | $2.99 | one-time |
| pack with 200 diamonds | $3.99 | one-time |
| big pack of rubies | $4.99 | one-time |
| income doubler | $5.99 | one-time |
| pack with 500 diamonds | $6.99 | one-time |
| Trinket | $6.99 | one-time |

**What reviewers like**

- 👍 Fun and addictive gameplay
- 🤩 Cute and creative cow designs
- 💰 Rewarding progression system
- 🎨 Enjoyable art style

**What reviewers complain about**

- 📺 Excessive advertisements
- ⏱️ Lengthy wait times for crates
- 🐛 Occasional game freezes and crashes
- 🔍 Accessibility issues on newer devices

**Reported bugs**

- Achievements not tracking correctly
- Upgrade buttons disappearing or becoming unresponsive

**Requested features**

- Ability to create custom cows
- More diverse cow evolution paths
- Improved ad monetization model
- Faster crate opening times


### Birds Evolution Merge

[App page](https://appshunter.io/ios/app/birds-evolution-merge/id1171392372)

Combine various bird species to evolve them into new, bizarre forms. Explore different stages, unlock curious creatures, and discover unexpected endings in this evolutionary merge game. Earn coins through bird poop to buy more creatures and accelerate your progress.

**Highlights:** Combine similar birds to create new creatures, Evolve birds to discover exotic forms, Use bird poop coins to buy new creatures, Discover different stages and bird species, Unlock various possible endings, Incremental clicker gameplay

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Hard Currency Pack 1 | $1.99 | one-time |
| pack with diamonds | $1.99 | one-time |
| pack of rubies | $1.99 | one-time |
| instant coins doubler | $1.99 | one-time |
| Promo Bundles VeryHigh | $2.99 | one-time |
| Shop Bundle 1 | $2.99 | one-time |
| Hard Currency Pack 2 | $4.99 | one-time |
| big pack of rubies | $5.99 | one-time |
| income doubler | $5.99 | one-time |
| Shop Bundle 2 | $5.99 | one-time |
| Trinket | $6.99 | one-time |
| Hard Currency Pack 3 | $9.99 | one-time |
| starter bundle discount | $9.99 | one-time |

**What reviewers like**

- 💎 Addictive and fun gameplay
- 🎨 Ability to customize birds
- 🐦 Variety of bird species
- 🎶 Enjoyable music

**What reviewers complain about**

- 🔍 Repetitive gameplay
- 🛑 Excessive ads
- 🐛 Bugs and crashes
- 🔊 Music interruption issues

**Reported bugs**

- Inability to change bird colors
- Incorrect pricing in the store
- Game crashing after updates

**Requested features**

- More bird species and evolution stages
- Ability to listen to music while playing
- Improved performance and stability


## Frequently asked questions

### Is Cow Evolution free?

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

### Is Birds Evolution Merge free?

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

### Which has better reviews, Cow Evolution or Birds Evolution Merge?

Cow Evolution is rated higher. Cow Evolution averages 4.7 out of 5 from 24K ratings, while Birds Evolution Merge averages 4.7 from 852 ratings.

### Do Cow Evolution or Birds Evolution Merge have ads?

Both Cow Evolution and Birds Evolution Merge show ads.

### Which is updated more often, Cow Evolution or Birds Evolution Merge?

Cow Evolution ships an update every 2 weeks, and Birds Evolution Merge every 5 weeks. Most recently, Cow Evolution was updated on October 30, 2026 and Birds Evolution Merge on October 22, 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.*