# Flash Mental Math vs 巧工 · 古代机械三维互动馆

The clearest difference is ads: 巧工 · 古代机械三维互动馆 at none against Flash Mental Math's shown. Flash Mental Math's advantage is iOS requirement (15.6 vs 17.0). On price, in-app purchases and device support 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 | Flash Mental Math | 巧工 · 古代机械三维互动馆 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (19 ratings)](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Monetization | Ad-supported | — |
| Size | 14 MB | 42 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [国刚 赵](https://appshunter.io/developer/900867272) |

## What reviewers say

### Flash Mental Math

[App page](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841)

Practice mental arithmetic with various difficulty levels and custom modes. This app serves as a brain training tool to enhance calculation skills.

**Highlights:** Mental arithmetic practice, Easy, normal, and difficult modes, Customizable modes, Brain training, Calculation skill improvement

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

**In-app purchases:** none


### 巧工 · 古代机械三维互动馆

[App page](https://appshunter.io/ios/app/id6816388136)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flash Mental Math free?

Flash Mental Math is free to download, with no in-app purchases.

### Is 巧工 · 古代机械三维互动馆 free?

巧工 · 古代机械三维互动馆 is free to download, with no in-app purchases.

### Do Flash Mental Math or 巧工 · 古代机械三维互动馆 have ads?

Flash Mental Math shows ads; 巧工 · 古代机械三维互动馆 does not.

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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.*