# Monstars.io vs Fish Evolution

The clearest difference is in-app purchases: Fish Evolution at none against Monstars.io's 11. Fish Evolution also leads on review sentiment (100% vs 71%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Monstars.io sells 11 one-off in-app purchases. Fish Evolution asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Monstars.io against 4.3 for Fish Evolution. Both are backed by a comparable volume of ratings — 27 and 40 respectively. Written reviews are what separate them: 71% of Monstars.io's written reviews are positive against 100% of Fish Evolution's.

Monstars.io ships an update every 10 days, Fish Evolution fortnightly. Both last shipped on October 5, 2026.

## The numbers

| Metric | Monstars.io | Fish Evolution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (27 ratings)](https://appshunter.io/ios/app/monstarsio-monster-evolution/id1597232271/reviews)** | [4.3 (40 ratings)](https://appshunter.io/ios/app/fish-evolution/id1658224047/reviews) |
| Number of ratings | 27 | **40** |
| Positive reviews | 70.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 250 MB | 216 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Dreamplay Games Inc.](https://appshunter.io/developer/965141578) | [佳灿 李](https://appshunter.io/developer/1637818097) |

## What reviewers say

### Monstars.io

[App page](https://appshunter.io/ios/app/monstarsio-monster-evolution/id1597232271)

Evolve your monster from an egg to a powerful dragon in this battle royale game. Absorb energy to level up, unlock new skills, and become the last monster standing. Compete against players worldwide in magical arena battles.

**Highlights:** Monster evolution, Battle Royale gameplay, Skill selection, Energy absorption for leveling, Unlockable monsters, Global player battles

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 Gems | $1.99 | one-time |
| 75 Gems | $4.99 | one-time |
| No Ads | $4.99 | one-time |
| 200 Gems | $9.99 | one-time |
| CLEAR PASS | $9.99 | one-time |
| DNA PASS | $9.99 | one-time |
| 350000 Gold | $14.99 | one-time |
| 500 Gems | $19.99 | one-time |
| 1000000 Gold | $26.99 | one-time |
| Legendary PKG 4 | $29.99 | one-time |
| 1500 Gems | $49.99 | one-time |


### Fish Evolution

[App page](https://appshunter.io/ios/app/fish-evolution/id1658224047)

Navigate the deep sea as a small fish, eating smaller prey to grow and evolve. Avoid larger predators and use power-ups to survive and become the ocean's overlord in this engaging casual game.

**Highlights:** Evolve from clownfish to sharks and behemoths, Eat smaller fish to grow, Avoid larger predators, Free to play, New themed skins, Powerful prop effects

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

**In-app purchases:** none


## Frequently asked questions

### Is Monstars.io free?

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

### Is Fish Evolution free?

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

### Which has better reviews, Monstars.io or Fish Evolution?

Monstars.io is rated higher. Monstars.io averages 4.4 out of 5 from 27 ratings, while Fish Evolution averages 4.3 from 40 ratings.

### Do Monstars.io or Fish Evolution have ads?

Both Monstars.io and Fish Evolution show ads.

### Which is updated more often, Monstars.io or Fish Evolution?

Monstars.io ships an update every 10 days, and Fish Evolution fortnightly. Most recently, Monstars.io was updated on October 5, 2026 and Fish Evolution on October 5, 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.*