# Colonies at War vs Koi

The clearest difference is in-app purchases: Koi at none against Colonies at War's 5. Koi also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 76%). Colonies at War's advantage is ratings volume (3.8K vs 1) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Colonies at War sells 5 one-off in-app purchases. Koi asks for nothing beyond the download.

Koi holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Colonies at War has 3.8K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of Colonies at War's written reviews are positive against 100% of Koi's.

Colonies at War ships an update fortnightly, Koi every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Colonies at War | Koi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (3.8K ratings)](https://appshunter.io/ios/app/colonies-at-war/id1552800366/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koi-rush/id6762474774/reviews)** |
| Number of ratings | **3.8K** | 1 |
| Positive reviews | 76.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 362 MB | 15 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [wombi pty ltd](https://appshunter.io/developer/1259294641) | [Mohamed Kaid](https://appshunter.io/developer/1861859254) |

## What reviewers say

### Colonies at War

[App page](https://appshunter.io/ios/app/colonies-at-war/id1552800366)

Engage in a 19th-century global conquest by building armies and navies. Choose from 28 nations, expand your territory through strategic warfare, and forge alliances to dominate the world stage.

**Highlights:** 19th-century colonial setting, Build and command armies, Naval warfare and sea control, Choose from 28 nations, Conquer territories, Form alliances

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase 10 random contracts. | $3.99 | one-time |
| Buy 2,500 credits | $3.99 | one-time |
| Buy Full Game | $5.99 | one-time |
| Purchase 30 random contracts. | $7.99 | one-time |
| Buy 8,000 credits | $7.99 | one-time |

**What reviewers like**

- 👍 Great game
- 🚀 Addictive gameplay
- 💡 Unique scenarios
- 👍 Challenging but fun
- 👍 Excellent strategy elements

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔍 Unclear mechanics
- 🔍 Confusing tutorials
- 🔍 Unstable diplomacy system
- 🔍 Imbalanced AI behavior

**Reported bugs**

- Game crashes after turns
- Movement and combat issues
- Incorrect troop/unit behavior
- Persistent save data problems

**Requested features**

- Multiplayer mode
- More historical scenarios
- Improved diplomacy system
- Customizable game modes
- Expanded unit variety


### Koi

[App page](https://appshunter.io/ios/app/koi-rush/id6762474774)

Control two fish simultaneously in this challenging reflex game. Dodge falling obstacles with precise timing across multiple game modes. Utilize a temporary invincibility power-up to survive longer and compete on global leaderboards.

**Highlights:** Control two fish simultaneously, Three distinct game modes, Temporary invincibility power-up, Game Center leaderboards, Simple tap controls

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

**In-app purchases:** none


## Frequently asked questions

### Is Colonies at War free?

Colonies at War is free to download, with in-app purchases available.

### Is Koi free?

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

### Which has better reviews, Colonies at War or Koi?

Koi is rated higher. Colonies at War averages 4.6 out of 5 from 3.8K ratings, while Koi averages 5.0 from 1 ratings.

### Do Colonies at War or Koi have ads?

Both Colonies at War and Koi show ads.

### Which is updated more often, Colonies at War or Koi?

Colonies at War ships an update fortnightly, and Koi every 5 days. Most recently, Colonies at War was updated on November 3, 2026 and Koi on October 31, 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.*