# Zoo vs Monster Evolution!

The clearest difference is update cadence: Monster Evolution! at weekly against Zoo's every 3 months. Monster Evolution! also leads on iOS requirement (12.5 vs 15.0). Zoo's advantage is review sentiment (69% vs 57%) and chart position (#116 vs unranked). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Zoo sells 1 one-off in-app purchase and Monster Evolution! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Zoo against 4.6 for Monster Evolution!. That said, the two scores are not equally well evidenced: Zoo has 201K ratings behind it against 35K, so its average is the more settled of the two. Written reviews are what separate them: 69% of Zoo's written reviews are positive against 57% of Monster Evolution!'s.

Zoo ships an update every 3 months, Monster Evolution! weekly. Both last shipped on October 28, 2026.

## The numbers

| Metric | Zoo | Monster Evolution! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (201K ratings)](https://appshunter.io/ios/app/zoo-happy-animals/id1579693904/reviews)** | [4.6 (35K ratings)](https://appshunter.io/ios/app/monster-evolution/id1586422507/reviews) |
| Number of ratings | **201K** | 35K |
| Positive reviews | **69.4% of reviews** | 56.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#116** | — |
| Size | 522 MB | 353 MB |
| Requires iOS | 15.0 | **12.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [SayGames LTD](https://appshunter.io/developer/1551847165) | [HOMA GAMES](https://appshunter.io/developer/1508492426) |

## What reviewers say

### Zoo

[App page](https://appshunter.io/ios/app/zoo-happy-animals/id1579693904)

**Currently charting:** #116 Top Free · Adventure (US App Store)

Manage a colorful zoo by completing fun mini-games like feeding, grooming, and washing animals. Keep your wild paradise thriving by ensuring all creatures are happy and cared for.

**Highlights:** Animal care mini-games, Zoo management, Animal welfare simulation, Puzzle challenges, Idle gameplay, Charming graphics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No ADS | $5.99 | one-time |

**What reviewers like**

- 🎉 Amazing game
- 🤩 Cute and fun animals
- 👍 Realistic zoo experience
- 🎨 Great graphics and animations

**What reviewers complain about**

- 🤬 Too many ads
- 🙄 Repetitive levels
- 🐛 Bugs and glitches
- 🤔 Lack of variety in mini-games

**Reported bugs**

- Crocodile not responding to food
- Hippo head not moving
- Monkeys falling off tower despite clearing obstacles

**Requested features**

- More animal variety
- Ability to customize zoo/animals
- Less frequent ads or ad-free option
- More level variety and progression


### Monster Evolution!

[App page](https://appshunter.io/ios/app/monster-evolution/id1586422507)

Feed and grow your cute animal from a baby pet into a terrifying giant monster. Battle other creatures in the arena to become the strongest beast. Experience hyper evolution and unleash your inner demon DNA.

**Highlights:** Feed and grow animals, Evolve into giant monsters, Battle in the arena, Accurate battle simulator, Hyper evolution

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |

**What reviewers like**

- 👍 Fun and creative game
- 🎨 Great graphics and character designs
- 🕹️ Engaging gameplay
- 💰 Rewarding progression system

**What reviewers complain about**

- 🐛 Glitches and bugs, especially on level 31
- 🔒 Difficulty unlocking certain characters like Huggy Wuggy
- 💰 Excessive ads interrupting gameplay
- 🔍 Limited character/monster selection

**Reported bugs**

- Invisible walls on level 31 preventing progression
- Glitches that block access to certain areas or characters
- Crashes and freezes reported by multiple users

**Requested features**

- Add more scary/interesting monster characters
- Fix level 31 glitch
- Improve character unlocking system
- Reduce ads or offer ad-free option


## Frequently asked questions

### Is Zoo free?

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

### Is Monster Evolution! free?

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

### Which has better reviews, Zoo or Monster Evolution!?

Zoo is rated higher. Zoo averages 4.6 out of 5 from 201K ratings, while Monster Evolution! averages 4.6 from 35K ratings.

### Do Zoo or Monster Evolution! have ads?

Both Zoo and Monster Evolution! show ads.

### Which is updated more often, Zoo or Monster Evolution!?

Zoo ships an update every 3 months, and Monster Evolution! weekly. Most recently, Zoo was updated on October 28, 2026 and Monster Evolution! on October 28, 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.*