# フラッシュ暗算（公式） vs フラッシュ暗算練習

The clearest difference is price: フラッシュ暗算練習 at Free against フラッシュ暗算（公式）'s $3.99. フラッシュ暗算練習 also leads on update cadence (every 9 days vs every 15 months). フラッシュ暗算（公式）'s advantage is ads (none vs shown) and iOS requirement (7.0 vs 13.0). On review sentiment, in-app purchases and device support there is nothing between them.

フラッシュ暗算練習 is free to download; フラッシュ暗算（公式） costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

フラッシュ暗算（公式） ships an update every 15 months, フラッシュ暗算練習 every 9 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | フラッシュ暗算（公式） | フラッシュ暗算練習 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/id421826349/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **57.1% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Every 9 days** |
| Size | 2 MB | 28 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuji Miyamoto](https://appshunter.io/developer/417390646) | [Katsuyuki Hayashi](https://appshunter.io/developer/1597263179) |

## What reviewers say

### フラッシュ暗算（公式）

[App page](https://appshunter.io/ios/app/id421826349)

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

**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 フラッシュ暗算（公式） free?

フラッシュ暗算（公式） costs $3.99, 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 フラッシュ暗算（公式） or フラッシュ暗算練習 have ads?

フラッシュ暗算練習 shows ads; フラッシュ暗算（公式） does not.

### Which is updated more often, フラッシュ暗算（公式） or フラッシュ暗算練習?

フラッシュ暗算（公式） ships an update every 15 months, and フラッシュ暗算練習 every 9 days. Most recently, フラッシュ暗算（公式） was updated on November 1, 2026 and フラッシュ暗算練習 on November 4, 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.*