# Zen Koi Classic vs PILLY BUGS

The clearest difference is in-app purchases: PILLY BUGS at none against Zen Koi Classic's 10. PILLY BUGS also leads on ads (none vs shown) and update cadence (daily vs every 3 months). Zen Koi Classic's advantage is ratings volume (2.1K vs 1). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Zen Koi Classic sells 10 one-off in-app purchases. PILLY BUGS asks for nothing beyond the download.

PILLY BUGS holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Zen Koi Classic has 2.1K ratings behind it against 1, so its average is the more settled of the two.

Zen Koi Classic ships an update every 3 months, PILLY BUGS daily. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Zen Koi Classic | PILLY BUGS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (2.1K ratings)](https://appshunter.io/ios/app/zen-koi-classic/id896575207/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pilly-bugs/id6810502452/reviews)** |
| Number of ratings | **2.1K** | 1 |
| Positive reviews | 85.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 128 MB | 93 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LandShark Games Pte. Ltd.](https://appshunter.io/developer/635142101) | [BRYNSTAR](https://appshunter.io/developer/6810502454) |

## What reviewers say

### Zen Koi Classic

[App page](https://appshunter.io/ios/app/zen-koi-classic/id896575207)

Nurture and collect vibrant Koi fish in a serene underwater world. Watch them grow, evolve into majestic dragons, and discover hundreds of unique varieties. Share your collection with friends and enjoy a calming, visually stunning experience.

**Highlights:** Breed and collect hundreds of unique Koi varieties, Watch Koi evolve into majestic dragons, Soothing music and mesmerizing visuals, Intuitive single-touch controls, Share and gift Koi with friends, Limited edition rewards for collectors

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $1.99 | one-time |
| Small Handful of pearls | $1.99 | one-time |
| Handful of pearls | $4.99 | one-time |
| Hasu Pack | $4.99 | one-time |
| Bag of pearls | $9.99 | one-time |
| Tenshi Pack | $9.99 | one-time |
| Splatto Pack | $9.99 | one-time |
| Yajiri Pack | $9.99 | one-time |
| Monkī Pack | $19.99 | one-time |
| Nami Pack | $19.99 | one-time |

**What reviewers like**

- 🌊 Relaxing and calming gameplay
- 🎨 Beautiful and intricate koi designs
- 🐉 Enjoyment of breeding and evolving koi into dragons
- 🕰️ Great way to pass time and de-stress
- 🎶 Soothing and pleasant background music

**What reviewers complain about**

- 💰 Difficulty earning pearls without in-app purchases
- 🔒 Limited number of koi/egg slots without spending pearls
- 🐛 Occasional crashes and bugs after updates
- 🆕 Concerns about losing progress after updates
- 📺 Disruptive full-screen ads

**Reported bugs**

- Koi and dragon progress lost after updates
- Inconsistent koi movement and speed issues
- Ads causing frequent crashes or freezes

**Requested features**

- Ability to play as or interact with dragons
- More koi slots or alternative ways to expand pond
- Easier ways to earn pearls without watching ads
- Ability to name or customize koi and dragons
- Zoom out feature to see full pond layout


### PILLY BUGS

[App page](https://appshunter.io/ios/app/pilly-bugs/id6810502452)

Experience a miniature garden filled with curious pill bugs. Tap them to watch them curl up and then explore their environment. Enjoy different day and night modes, and choose your own music for a relaxing play session.

**Highlights:** Interactive pill bugs, Day and night modes, Customizable music, Offline play, No ads or purchases

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

**In-app purchases:** none


## Frequently asked questions

### Is Zen Koi Classic free?

Zen Koi Classic is free to download, with in-app purchases available.

### Is PILLY BUGS free?

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

### Which has better reviews, Zen Koi Classic or PILLY BUGS?

PILLY BUGS is rated higher. Zen Koi Classic averages 4.7 out of 5 from 2.1K ratings, while PILLY BUGS averages 5.0 from 1 ratings.

### Do Zen Koi Classic or PILLY BUGS have ads?

Zen Koi Classic shows ads; PILLY BUGS does not.

### Which is updated more often, Zen Koi Classic or PILLY BUGS?

Zen Koi Classic ships an update every 3 months, and PILLY BUGS daily. Most recently, Zen Koi Classic was updated on October 24, 2026 and PILLY BUGS 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.*