# Flash Mental Math vs 優しい色合いのフラッシュ暗算

The clearest difference is update cadence: 優しい色合いのフラッシュ暗算 at every 3 weeks against Flash Mental Math's every 3 months. On price, ads, 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.

Flash Mental Math ships an update every 3 months, 優しい色合いのフラッシュ暗算 every 3 weeks. Both last shipped on October 27, 2026.

## The numbers

| Metric | Flash Mental Math | 優しい色合いのフラッシュ暗算 |
| --- | --- | --- |
| 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 | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 14 MB | 18 MB |
| Requires iOS | 15.6 | **15.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [Manae Ishida](https://appshunter.io/developer/1617075502) |

## 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


### 優しい色合いのフラッシュ暗算

[App page](https://appshunter.io/ios/app/id1617075500)

**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 優しい色合いのフラッシュ暗算 free?

優しい色合いのフラッシュ暗算 is free to download, with no in-app purchases.

### Do Flash Mental Math or 優しい色合いのフラッシュ暗算 have ads?

Both Flash Mental Math and 優しい色合いのフラッシュ暗算 show ads.

### Which is updated more often, Flash Mental Math or 優しい色合いのフラッシュ暗算?

Flash Mental Math ships an update every 3 months, and 優しい色合いのフラッシュ暗算 every 3 weeks. Most recently, Flash Mental Math was updated on October 27, 2026 and 優しい色合いのフラッシュ暗算 on October 27, 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.*