# Sudoku Brain Challenge vs ASTHMAXcel Perception

The clearest difference is in-app purchases: ASTHMAXcel Perception at none against Sudoku Brain Challenge's 7. Sudoku Brain Challenge's advantage is update cadence (every 2 days vs every 48 months) and iOS requirement (6.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Sudoku Brain Challenge sells 7 one-off in-app purchases. ASTHMAXcel Perception asks for nothing beyond the download.

Sudoku Brain Challenge ships an update every 2 days, ASTHMAXcel Perception every 48 months. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sudoku Brain Challenge | ASTHMAXcel Perception |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/asthmaxcel-perception/id1551782582/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 48 months |
| Monetization | — | Free |
| Size | 22 MB | 886 MB |
| Requires iOS | **6.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Hai Tran](https://appshunter.io/developer/1170864260) | [Montefiore Applications, LLC](https://appshunter.io/developer/1378014760) |

## What reviewers say

### Sudoku Brain Challenge

[App page](https://appshunter.io/ios/app/sudoku-brain-challenge/id1302994539)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Package 1 | $0.99 | one-time |
| Remove Advs | $0.99 | one-time |
| Coin Pakage 2 | $1.99 | one-time |
| Coin Package 3 | $2.99 | one-time |
| Coin Package 4 | $3.99 | one-time |
| Coin Package 5 | $4.99 | one-time |
| Coin Package 6 | $9.99 | one-time |


### ASTHMAXcel Perception

[App page](https://appshunter.io/ios/app/asthmaxcel-perception/id1551782582)

Learn about asthma management through engaging animated videos and interactive games. This app educates users on lung function, inhaler usage, trigger reduction, and early warning signs of asthma attacks.

**Highlights:** Animated educational videos, Interactive asthma games, Medication reminders, Personalized asthma tips, Inhaler and spacer usage guides, Trigger identification and reduction

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Brain Challenge free?

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

### Is ASTHMAXcel Perception free?

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

### Do Sudoku Brain Challenge or ASTHMAXcel Perception have ads?

Neither Sudoku Brain Challenge nor ASTHMAXcel Perception shows ads.

### Which is updated more often, Sudoku Brain Challenge or ASTHMAXcel Perception?

Sudoku Brain Challenge ships an update every 2 days, and ASTHMAXcel Perception every 48 months. Most recently, Sudoku Brain Challenge was updated on November 4, 2026 and ASTHMAXcel Perception on November 3, 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.*