# Math Brain Up vs 脳トレ！空港危機一髪

The clearest difference is review sentiment: Math Brain Up at 100% against 脳トレ！空港危機一髪's 25%. Math Brain Up also leads on ads (none vs shown) and update cadence (every 4 days vs every 6 weeks). 脳トレ！空港危機一髪's advantage is in-app purchases (none vs 1) and iOS requirement (14.0 vs 18.6). On price and device support there is nothing between them.

Both are free to download. Math Brain Up sells 1 one-off in-app purchase. 脳トレ！空港危機一髪 asks for nothing beyond the download.

Math Brain Up ships an update every 4 days, 脳トレ！空港危機一髪 every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Math Brain Up | 脳トレ！空港危機一髪 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/math-brain-up/id1519141500/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 126 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Yin Kai Leung Joseph](https://appshunter.io/developer/843708119) | [FUKUROU](https://appshunter.io/developer/1603805098) |

## What reviewers say

### Math Brain Up

[App page](https://appshunter.io/ios/app/math-brain-up/id1519141500)

This math logic puzzle challenges players to fill in blanks with single digits to solve equations. It requires strategic thinking, quick reflexes, and logical skills. Offers millions of unique puzzles with a game timer and error highlighting.

**Highlights:** Math logic puzzles, Solve equations by filling blanks, Millions of unique puzzles, Game timer, Error highlighting, Answer provided for each puzzle

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


### 脳トレ！空港危機一髪

[App page](https://appshunter.io/ios/app/id1561957451)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Brain Up free?

Math Brain Up is free to download, with in-app purchases available.

### Is 脳トレ！空港危機一髪 free?

脳トレ！空港危機一髪 is free to download, with no in-app purchases.

### Do Math Brain Up or 脳トレ！空港危機一髪 have ads?

脳トレ！空港危機一髪 shows ads; Math Brain Up does not.

### Which is updated more often, Math Brain Up or 脳トレ！空港危機一髪?

Math Brain Up ships an update every 4 days, and 脳トレ！空港危機一髪 every 6 weeks. Most recently, Math Brain Up was updated on November 3, 2026 and 脳トレ！空港危機一髪 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.*