# フラッシュ計算 vs フラッシュ暗算練習

The clearest difference is update cadence: フラッシュ暗算練習 at every 9 days against フラッシュ計算's every 14 months. フラッシュ計算's advantage is iOS requirement (11.0 vs 13.0). 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.

フラッシュ計算 ships an update every 14 months, フラッシュ暗算練習 every 9 days. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | フラッシュ計算 | フラッシュ暗算練習 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 14 months | **Every 9 days** |
| Size | 52 MB | 28 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [hideaki fukumura](https://appshunter.io/developer/1629984757) | [Katsuyuki Hayashi](https://appshunter.io/developer/1597263179) |

## What reviewers say

### フラッシュ計算

[App page](https://appshunter.io/ios/app/id1637786591)

**Features:** macOS Compatibility

**In-app purchases:** none


### フラッシュ暗算練習

[App page](https://appshunter.io/ios/app/id6477322637)

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

**In-app purchases:** none


## Frequently asked questions

### Is フラッシュ計算 free?

フラッシュ計算 is free to download, with no in-app purchases.

### Is フラッシュ暗算練習 free?

フラッシュ暗算練習 is free to download, with no in-app purchases.

### Do フラッシュ計算 or フラッシュ暗算練習 have ads?

Both フラッシュ計算 and フラッシュ暗算練習 show ads.

### Which is updated more often, フラッシュ計算 or フラッシュ暗算練習?

フラッシュ計算 ships an update every 14 months, and フラッシュ暗算練習 every 9 days. Most recently, フラッシュ計算 was updated on October 5, 2026 and フラッシュ暗算練習 on October 9, 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.*