# Perfect World vs Koi

The clearest difference is review sentiment: Koi at 100% against Perfect World's 39%. Koi also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 10). Perfect World's advantage is ads (none vs shown) and ratings volume (17 vs 1). On price there is nothing between them.

Both are free to download. Perfect World sells 10 one-off in-app purchases. Koi asks for nothing beyond the download.

Koi holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Perfect World has 17 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 39% of Perfect World's written reviews are positive against 100% of Koi's.

Perfect World ships an update every 2 months, Koi every 5 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Perfect World | Koi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (17 ratings)](https://appshunter.io/ios/app/perfect-world-ascend/id6596798581/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koi-rush/id6762474774/reviews)** |
| Number of ratings | **17** | 1 |
| Positive reviews | 39.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 3.1 GB | 15 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 9+ |
| Developer | [PILI STARSHIP](https://appshunter.io/developer/1749213890) | [Mohamed Kaid](https://appshunter.io/developer/1861859254) |

## What reviewers say

### Perfect World

[App page](https://appshunter.io/ios/app/perfect-world-ascend/id6596798581)

Embark on an epic Eastern fantasy adventure in a vast 3D open world. Choose your path as a healer or damage dealer, customize your character with intricate detail, and engage in skill-based combat and large-scale PvP. Find companions and explore a visually stunning realm.

**Highlights:** Male Cleric class with healing/buff or damage paths, Skill-based combat and tactical feedback, 10,000-player cross-server wars, Battle Royale PvP modes, Seamless 3D open-world exploration, Ultra-HD character creator, Real-time voice chat and emotes

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Top up $0.99 | $0.99 | one-time |
| Top up $1.99 | $1.99 | one-time |
| Top up $2.79 | $2.79 | one-time |
| Top up $4.99 | $4.99 | one-time |
| Top up $7.99 | $7.99 | one-time |
| Top up $9.99 | $9.99 | one-time |
| Top up $14.99 | $14.99 | one-time |
| Top up $29.99 | $29.99 | one-time |
| Top up $49.99 | $49.99 | one-time |
| Top up $99.99 | $99.99 | one-time |

**What reviewers like**

- 🚀 Majestic and amazing graphics
- 👍 Improved features like guild, security, and quests
- 👍 Smooth performance with no crashes or freezes
- 👍 Enjoyable gameplay experience

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🕰️ Lack of EU server
- 🔇 Audio issues on certain devices
- 🤖 Spam bots in guild chat
- 🤔 Discord moderator with poor attitude

**Reported bugs**

- Character movement issues when browsing items
- Inability to create or join guilds

**Requested features**

- Add controller support
- Improve character customization options
- Increase visibility of UI elements


### 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 Perfect World free?

Perfect World 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, Perfect World or Koi?

Koi is rated higher. Perfect World averages 3.8 out of 5 from 17 ratings, while Koi averages 5.0 from 1 ratings.

### Do Perfect World or Koi have ads?

Koi shows ads; Perfect World does not.

### Which is updated more often, Perfect World or Koi?

Perfect World ships an update every 2 months, and Koi every 5 days. Most recently, Perfect World was updated on November 4, 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.*