# YANKAI'S DIAMOND vs Zerko

YANKAI'S DIAMOND and Zerko both sit at 4.7 stars, but that hides the real split: 93% of Zerko's written reviews are positive against 50% of YANKAI'S DIAMOND's. YANKAI'S DIAMOND's advantage is ratings volume (45 vs 14) and iOS requirement (10.0 vs 12.0). On price, rating, update cadence and ads there is nothing between them.

YANKAI'S DIAMOND costs $2.99 and Zerko $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for YANKAI'S DIAMOND against 4.9 for Zerko. Both are backed by a comparable volume of ratings — 45 and 14 respectively. Written reviews are what separate them: 50% of YANKAI'S DIAMOND's written reviews are positive against 93% of Zerko's.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | YANKAI'S DIAMOND | Zerko |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | [4.7 (45 ratings)](https://appshunter.io/ios/app/yankais-diamond/id1528527121/reviews) | **[4.9 (14 ratings)](https://appshunter.io/ios/app/zerko/id6470181559/reviews)** |
| Number of ratings | **45** | 14 |
| Positive reviews | 50.0% of reviews | **93.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Paid | Paid |
| Size | 97 MB | 100 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kenny Sun](https://appshunter.io/developer/916299994) | [Maciej Targoni](https://appshunter.io/developer/495165602) |

## What reviewers say

### YANKAI'S DIAMOND

[App page](https://appshunter.io/ios/app/yankais-diamond/id1528527121)

Experience a handcrafted puzzle game with an infinite number of beautiful levels. This game is a tribute to diamonds, offering a unique and engaging challenge for players.

**Highlights:** Handcrafted levels, Infinite level generation, Diamond-themed puzzles, Engaging gameplay, Beautiful design

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

**In-app purchases:** none


### Zerko

[App page](https://appshunter.io/ios/app/zerko/id6470181559)

A relaxing puzzle game where you strategically place blocks to make all numbers on the board equal zero. Enjoy a no-pressure experience with calming audio and no in-app purchases or ads.

**Highlights:** Zero-sum number puzzles, Strategic block placement, Relaxing gameplay, No time pressure, No in-app purchases, No ads

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

**In-app purchases:** none


## Frequently asked questions

### Is YANKAI'S DIAMOND free?

YANKAI'S DIAMOND costs $2.99, with no in-app purchases.

### Is Zerko free?

Zerko costs $2.99, with no in-app purchases.

### Which has better reviews, YANKAI'S DIAMOND or Zerko?

Zerko is rated higher. YANKAI'S DIAMOND averages 4.7 out of 5 from 45 ratings, while Zerko averages 4.9 from 14 ratings.

### Do YANKAI'S DIAMOND or Zerko have ads?

Neither YANKAI'S DIAMOND nor Zerko shows ads.

### Which is updated more often, YANKAI'S DIAMOND or Zerko?

YANKAI'S DIAMOND ships an update every 3 weeks, and Zerko every 3 weeks. Most recently, YANKAI'S DIAMOND was updated on October 24, 2026 and Zerko on October 24, 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.*