# Brain Train Sudoku vs 무한! 스도쿠 지옥

The clearest difference is rating: 무한! 스도쿠 지옥 at 5.0 against Brain Train Sudoku's 3.7. 무한! 스도쿠 지옥 also leads on in-app purchases (none vs 4) and review sentiment (100% vs 75%). Brain Train Sudoku's advantage is ads (none vs shown) and update cadence (every 3 days vs every 10 days). On ratings volume and device support there is nothing between them.

무한! 스도쿠 지옥 holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 75% of Brain Train Sudoku's written reviews are positive against 100% of 무한! 스도쿠 지옥's.

Brain Train Sudoku ships an update every 3 days, 무한! 스도쿠 지옥 every 10 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Brain Train Sudoku | 무한! 스도쿠 지옥 |
| --- | --- | --- |
| Price | **Free** | — |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/brain-train-sudoku-bts/id1326693057/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sudoku-hell/id6766896276/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 10 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 107 MB | 163 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FunnyPack Inc.](https://appshunter.io/developer/1215132088) | [base-d Co., Ltd.](https://appshunter.io/developer/615253846) |

## What reviewers say

### Brain Train Sudoku

[App page](https://appshunter.io/ios/app/brain-train-sudoku-bts/id1326693057)

Engage your mind with a vast collection of free Sudoku puzzles. This game offers a simple yet addictive experience with helpful tools like auto-save and note-taking. Track your progress and compete globally as you master increasingly challenging levels.

**Highlights:** Over 10,000 free Sudoku puzzles, Auto-save and note-taking features, Multiple difficulty levels, Offline play support, Global leaderboards, Play statistics

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 hints | $0.99 | one-time |
| 15 hints | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Unlimited hints | $4.99 | one-time |


### 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 Brain Train Sudoku free?

Brain Train Sudoku is free to download, with in-app purchases available.

### Is 무한! 스도쿠 지옥 free?

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

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

무한! 스도쿠 지옥 is rated higher. Brain Train Sudoku averages 3.7 out of 5 from 3 ratings, while 무한! 스도쿠 지옥 averages 5.0 from 4 ratings.

### Do Brain Train Sudoku or 무한! 스도쿠 지옥 have ads?

무한! 스도쿠 지옥 shows ads; Brain Train Sudoku does not.

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

Brain Train Sudoku ships an update every 3 days, and 무한! 스도쿠 지옥 every 10 days. Most recently, Brain Train Sudoku was updated on November 2, 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.*