# Hello Sudoku vs Reaction Training

The clearest difference is review sentiment: Hello Sudoku at 100% against Reaction Training's 50%. Hello Sudoku also leads on iOS requirement (9.0 vs 15.6). 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.

## The numbers

| Metric | Hello Sudoku | Reaction Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/reaction-training-shoot/id1672910609/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 63 MB | 26 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chin-Hong Lin](https://appshunter.io/developer/1401444972) | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) |

## 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


### Reaction Training

[App page](https://appshunter.io/ios/app/reaction-training-shoot/id1672910609)

This game challenges players to tap moving targets, offering a fun way to practice reflexes and improve concentration. It features online leaderboards to compare scores with others. Regular play can enhance brain activation and cognitive skills.

**Highlights:** Tap moving targets, Score ranking display, Online leaderboards, Reflex training, Concentration improvement, Brain activation

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

**In-app purchases:** none


## Frequently asked questions

### Is Hello Sudoku free?

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

### Is Reaction Training free?

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

### Do Hello Sudoku or Reaction Training have ads?

Both Hello Sudoku and Reaction Training 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.*