# Block Chess by SZY vs Merge Number

The clearest difference is rating: Merge Number at 5.0 against Block Chess by SZY's 1.0. Merge Number also leads on update cadence (every 5 months vs every 15 months) and ratings volume (5 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Merge Number holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Merge Number has 5 ratings behind it against 1, so its average is the more settled of the two.

Block Chess by SZY ships an update every 15 months, Merge Number every 5 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Block Chess by SZY | Merge Number |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/block-chess-by-szy/id1155867318/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/merge-number-stack-it-game/id1614185641/reviews)** |
| Number of ratings | 1 | **5** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 15 months | **Every 5 months** |
| Monetization | Ad-supported | Ad-supported |
| Size | 69 MB | 21 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shen Zhongyuan](https://appshunter.io/developer/385090494) | [Bhavana Ponkiya](https://appshunter.io/developer/1548462328) |

## What reviewers say

### Block Chess by SZY

[App page](https://appshunter.io/ios/app/block-chess-by-szy/id1155867318)

A unique board game with a twist on traditional chess. Players strategically place five different types of four-block pieces on an 8x8 board. The objective is to place the final piece to win, avoiding adjacent placement of your own pieces.

**Highlights:** 8x8 board gameplay, Five unique four-block pieces, Strategic piece placement, No side-by-side own pieces, Final piece placement wins

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

**In-app purchases:** none


### Merge Number

[App page](https://appshunter.io/ios/app/merge-number-stack-it-game/id1614185641)

This addictive number puzzle game challenges players to merge numbered rings by stacking them. With unlimited levels and classic gameplay, it's designed to enhance mental power and IQ. Enjoy a visually appealing experience with qualitative graphics and smooth animations.

**Highlights:** Number stacking and merging gameplay, Unlimited levels, Offline play, Qualitative graphics and sound, User-friendly controls, Suitable for all ages

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

**In-app purchases:** none


## Frequently asked questions

### Is Block Chess by SZY free?

Block Chess by SZY is free to download, with no in-app purchases.

### Is Merge Number free?

Merge Number is free to download, with no in-app purchases.

### Which has better reviews, Block Chess by SZY or Merge Number?

Merge Number is rated higher. Block Chess by SZY averages 1.0 out of 5 from 1 ratings, while Merge Number averages 5.0 from 5 ratings.

### Do Block Chess by SZY or Merge Number have ads?

Both Block Chess by SZY and Merge Number show ads.

### Which is updated more often, Block Chess by SZY or Merge Number?

Block Chess by SZY ships an update every 15 months, and Merge Number every 5 months. Most recently, Block Chess by SZY was updated on November 2, 2026 and Merge Number on November 3, 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.*