# Mechanical Clock 3D vs Pond Koi

The clearest difference is rating: Mechanical Clock 3D at 4.8 against Pond Koi's 3.1. Mechanical Clock 3D also leads on review sentiment (69% vs 31%) and ratings volume (259 vs 16). Pond Koi's advantage is update cadence (every 2 months vs every 37 months) and chart position (#198 vs unranked). On ads, in-app purchases and monetization model there is nothing between them.

Mechanical Clock 3D costs $0.99 and Pond Koi $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mechanical Clock 3D holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: Mechanical Clock 3D has 259 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 69% of Mechanical Clock 3D's written reviews are positive against 31% of Pond Koi's.

Mechanical Clock 3D ships an update every 37 months, Pond Koi every 2 months. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Mechanical Clock 3D | Pond Koi |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | **[4.8 (259 ratings)](https://appshunter.io/ios/app/mechanical-clock-3d/id458575545/reviews)** | [3.1 (16 ratings)](https://appshunter.io/ios/app/pond-koi/id642875147/reviews) |
| Number of ratings | **259** | 16 |
| Positive reviews | **69.1% of reviews** | 30.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#198** |
| Size | 26 MB | 228 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Igor Panichev](https://appshunter.io/developer/435142557) | [荣辉 张](https://appshunter.io/developer/517582330) |

## What reviewers say

### Mechanical Clock 3D

[App page](https://appshunter.io/ios/app/mechanical-clock-3d/id458575545)

Explore the intricate workings of a mechanical clock with realistic 3D graphics. Witness its internal gears and mechanisms in motion, and enjoy hourly chimes and authentic tick-tock sounds. Customize the visual experience with two distinct color schemes.

**Highlights:** High-quality 3D graphics, Shows current time, Hourly and half-hourly chimes, Tick-tock sound effect, Two color schemes

**In-app purchases:** none

**What reviewers like**

- ✨ Visually stunning design
- 🎵 Excellent sound quality
- ⚙️ Intricate mechanical details
- 🕰️ Accurate timepiece
- 🔊 Selective volume control

**What reviewers complain about**

- ⚠️ Hands hard to see
- 🤔 Limited functionality
- 🚫 No alarm function
- 3️⃣ Not truly 3D
- 📱 Not ideal for mobile

**Reported bugs**

- Settings collapsing
- App crashes constantly on iPhone 4s
- App freezes on startup
- App stays black on iPhone 5
- Does not chime when not on screen

**Requested features**

- Add Apple Watch support
- Add tourbillon function
- Allow background sound playback
- Add alarm feature
- Make hands more visible (glow, contrast, closed face)


### Pond Koi

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

**Currently charting:** #198 Top Paid · Entertainment (US App Store)

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


## Frequently asked questions

### Is Mechanical Clock 3D free?

Mechanical Clock 3D costs $0.99, with no in-app purchases.

### Is Pond Koi free?

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

### Which has better reviews, Mechanical Clock 3D or Pond Koi?

Mechanical Clock 3D is rated higher. Mechanical Clock 3D averages 4.8 out of 5 from 259 ratings, while Pond Koi averages 3.1 from 16 ratings.

### Do Mechanical Clock 3D or Pond Koi have ads?

Neither Mechanical Clock 3D nor Pond Koi shows ads.

### Which is updated more often, Mechanical Clock 3D or Pond Koi?

Mechanical Clock 3D ships an update every 37 months, and Pond Koi every 2 months. Most recently, Mechanical Clock 3D was updated on October 16, 2026 and Pond Koi on October 8, 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.*