# Sudoku Calm vs 무한! 스도쿠 지옥

The clearest difference is monetization model: Sudoku Calm at free against 무한! 스도쿠 지옥's ad-supported. On rating, review sentiment, ratings volume and update cadence there is nothing between them.

On the App Store both sit at effectively the same score — 5.0 for Sudoku Calm against 5.0 for 무한! 스도쿠 지옥. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Sudoku Calm ships an update every 9 days, 무한! 스도쿠 지옥 every 10 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sudoku Calm | 무한! 스도쿠 지옥 |
| --- | --- | --- |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/sudoku-calm/id6761188675/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/sudoku-hell/id6766896276/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 10 days |
| Monetization | **Free** | Ad-supported |
| Size | 27 MB | 163 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HYEKYUNG MOON](https://appshunter.io/developer/1888183128) | [base-d Co., Ltd.](https://appshunter.io/developer/615253846) |

## What reviewers say

### Sudoku Calm

[App page](https://appshunter.io/ios/app/sudoku-calm/id6761188675)

This app offers a minimalist Sudoku experience focused on quiet contemplation and daily challenges. Enjoy five difficulty levels, a daily puzzle with streak tracking, and a ghost race mode against past players. It provides a clean interface with helpful tools like number highlighting and smartメモ, all without ads or logins.

**Highlights:** Five difficulty levels, Daily puzzle with streak tracking, Ghost race mode, Number highlighting, Smart memo, Undo and hint functions

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

**In-app purchases:** none


### 무한! 스도쿠 지옥

[App page](https://appshunter.io/ios/app/sudoku-hell/id6766896276)

Challenge yourself with endlessly generated Sudoku puzzles. This game offers a range of difficulties, from beginner to extreme 'hell' levels, ensuring a tailored experience for every player. Enjoy a fresh challenge every time with its unique concept and characters.

**Highlights:** Endlessly generated Sudoku puzzles, Multiple difficulty levels (Beginner to Hell), Intuitive and clean UI, Fast and smooth gameplay, Unique hell concept and characters

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Calm free?

Pricing for Sudoku Calm is not currently listed on the App Store.

### Is 무한! 스도쿠 지옥 free?

Pricing for 무한! 스도쿠 지옥 is not currently listed on the App Store.

### Which has better reviews, Sudoku Calm or 무한! 스도쿠 지옥?

Sudoku Calm and 무한! 스도쿠 지옥 are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do Sudoku Calm or 무한! 스도쿠 지옥 have ads?

Both Sudoku Calm and 무한! 스도쿠 지옥 show ads.

### Which is updated more often, Sudoku Calm or 무한! 스도쿠 지옥?

Sudoku Calm ships an update every 9 days, and 무한! 스도쿠 지옥 every 10 days. Most recently, Sudoku Calm was updated on October 31, 2026 and 무한! 스도쿠 지옥 on November 5, 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.*