# SudoZen vs Chessoku

The clearest difference is in-app purchases: SudoZen at none against Chessoku's 10. SudoZen also leads on ads (none vs shown) and device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Chessoku sells 10 one-off in-app purchases. SudoZen asks for nothing beyond the download.

SudoZen ships an update every 2 weeks, Chessoku every 11 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SudoZen | Chessoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chessoku/id6757341433/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 89 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yagiz Kukul](https://appshunter.io/developer/1828231911) | [Nous Games Teknoloji Anonim Sirketi](https://appshunter.io/developer/6812146658) |

## What reviewers say

### SudoZen

[App page](https://appshunter.io/ios/app/sudozen/id6748965623)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chessoku

[App page](https://appshunter.io/ios/app/chessoku/id6757341433)

A logic puzzle game where chess pieces are used to solve grid-based challenges. Each puzzle requires you to strategically place pieces so that the numbers on the board accurately reflect the number of attacking pieces. Learn chess piece movements through animated lessons.

**Highlights:** Logic puzzles with chess pieces, Animated chess piece tutorials, Progressive difficulty levels, Daily puzzles with collectible stickers, Unlockable power-ups, No timer for core gameplay

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads + Offline | $7.99 | one-time |
| Small Bundle | $9.99 | one-time |
| No Ads Bundle | $11.99 | one-time |
| Medium Bundle | $19.99 | one-time |
| 25,000 Coins | $28.99 | one-time |
| Ultra Bundle | $34.99 | one-time |
| 50,000 Coins | $54.99 | one-time |
| Epic Bundle | $66.99 | one-time |
| 100,000 Coins | $99.99 | one-time |
| Legendary Bundle | $99.99 | one-time |


## Frequently asked questions

### Is SudoZen free?

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

### Is Chessoku free?

Chessoku is free to download, with in-app purchases available.

### Do SudoZen or Chessoku have ads?

Chessoku shows ads; SudoZen does not.

### Which is updated more often, SudoZen or Chessoku?

SudoZen ships an update every 2 weeks, and Chessoku every 11 days. Most recently, SudoZen was updated on November 5, 2026 and Chessoku on October 31, 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.*