# Pond Koi vs Aurora Zen

The clearest difference is price: Aurora Zen at Free against Pond Koi's $2.99. Aurora Zen also leads on rating (5.0 vs 3.1). Pond Koi's advantage is update cadence (every 2 months vs every 11 months) and ratings volume (16 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Aurora Zen is free to download; Pond Koi costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Aurora Zen holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Pond Koi has 16 ratings behind it against 1, so its average is the more settled of the two.

Pond Koi ships an update every 2 months, Aurora Zen every 11 months. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Pond Koi | Aurora Zen |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.1 (16 ratings)](https://appshunter.io/ios/app/pond-koi/id642875147/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aurora-zen/id1662065243/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 30.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 11 months |
| Monetization | Paid | **Free** |
| Size | 228 MB | 695 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [荣辉 张](https://appshunter.io/developer/517582330) | [Virtex Edge Design Inc.](https://appshunter.io/developer/1276208686) |

## What reviewers say

### Pond Koi

[App page](https://appshunter.io/ios/app/pond-koi/id642875147)

Create a serene digital pond with swimming koi, customizable backgrounds, and natural soundscapes. Interact with the fish, add flowers, and enjoy a stress-relieving visual and auditory experience.

**Highlights:** Realistic koi fish simulation, Customizable pond backgrounds, Interactive fish feeding and teasing, Variety of natural sound effects, Flower and leaf arrangement, Realistic water splashes and ripples

**Features:** Vision Pro support

**In-app purchases:** none


### Aurora Zen

[App page](https://appshunter.io/ios/app/aurora-zen/id1662065243)

Create stunning visual displays by painting the sky with vibrant aurora ribbons. This app offers a relaxing experience, allowing users to find their zen through colorful and dynamic sky art.

**Highlights:** Paint the sky with aurora ribbons, Create vibrant colors and shapes, Relaxing and zen-like experience, Dynamic visual displays, Fill the sky with beautiful art

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pond Koi free?

Pond Koi costs $2.99, with no in-app purchases.

### Is Aurora Zen free?

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

### Which has better reviews, Pond Koi or Aurora Zen?

Aurora Zen is rated higher. Pond Koi averages 3.1 out of 5 from 16 ratings, while Aurora Zen averages 5.0 from 1 ratings.

### Do Pond Koi or Aurora Zen have ads?

Neither Pond Koi nor Aurora Zen shows ads.

### Which is updated more often, Pond Koi or Aurora Zen?

Pond Koi ships an update every 2 months, and Aurora Zen every 11 months. Most recently, Pond Koi was updated on October 23, 2026 and Aurora Zen on October 19, 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.*