# Hello Sudoku vs BRAIN 99

The clearest difference is review sentiment: Hello Sudoku at 100% against BRAIN 99's 60%. Hello Sudoku also leads on in-app purchases (none vs 12) and iOS requirement (9.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. BRAIN 99 sells 12 one-off in-app purchases. Hello Sudoku asks for nothing beyond the download.

## The numbers

| Metric | Hello Sudoku | BRAIN 99 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 8 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 63 MB | 311 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chin-Hong Lin](https://appshunter.io/developer/1401444972) | [XOGAMES Inc](https://appshunter.io/developer/1133102824) |

## What reviewers say

### Hello Sudoku

[App page](https://appshunter.io/ios/app/hello-sudoku/id1578329367)

This number puzzle game challenges you to deduce the remaining answers using known digits. It offers both 4x4 and 9x9 modes suitable for beginners and experienced players alike. Immerse yourself in the world of Sudoku with an uninterrupted gaming experience.

**Highlights:** Number deduction puzzle, 4x4 game mode, 9x9 game mode, Suitable for beginners, Suitable for experienced players, Ad-free in-game experience

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

**In-app purchases:** none


### BRAIN 99

[App page](https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981)

Engage in real-time brain battles with friends and family. This game offers over 20 challenges to activate different parts of your brain, improving memory, observation, and calculation skills. Compete for rewards and titles to boost your IQ.

**Highlights:** Real-time multiplayer brain battles, Over 20 brain-activating challenges, Improves memory, observation, analysis, focus, calculation, Competitive rankings and rewards, Intuitive gameplay for all ages, Unlock new challenges and titles

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins x1100 | $1.99 | one-time |
| Starter Pack Lv.1 | $1.99 | one-time |
| Coins x2500 | $3.99 | one-time |
| Starter Pack Lv.2 | $3.99 | one-time |
| No Ads | $5.99 | one-time |
| Starter Pack Lv.3 | $5.99 | one-time |
| Starter Pack | $5.99 | one-time |
| Coins x7500 | $7.99 | one-time |
| Starter Pack All | $7.99 | one-time |
| Coins x14900 | $14.99 | one-time |
| Coins x27000 | $17.99 | one-time |
| Coins x50000 | $22.99 | one-time |


## Frequently asked questions

### Is Hello Sudoku free?

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

### Is BRAIN 99 free?

BRAIN 99 is free to download, with in-app purchases available.

### Do Hello Sudoku or BRAIN 99 have ads?

Both Hello Sudoku and BRAIN 99 show ads.

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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.*