# フラッシュ暗算ドリル vs Speed Math Drill

The clearest difference is in-app purchases: フラッシュ暗算ドリル at none against Speed Math Drill's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Speed Math Drill sells 1 one-off in-app purchase. フラッシュ暗算ドリル asks for nothing beyond the download.

## The numbers

| Metric | フラッシュ暗算ドリル | Speed Math Drill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 10 days |
| Size | 24 MB | 38 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Katsuyuki Hayashi](https://appshunter.io/developer/1597263179) | [MASAKI CHIBA](https://appshunter.io/developer/1890488277) |

## What reviewers say

### フラッシュ暗算ドリル

[App page](https://appshunter.io/ios/app/id6760587745)

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

**In-app purchases:** none


### Speed Math Drill

[App page](https://appshunter.io/ios/app/speed-math-drill-mental-math/id6761619388)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $1.99 | one-time |


## Frequently asked questions

### Is フラッシュ暗算ドリル free?

フラッシュ暗算ドリル is free to download, with no in-app purchases.

### Is Speed Math Drill free?

Speed Math Drill is free to download, with in-app purchases available.

### Do フラッシュ暗算ドリル or Speed Math Drill have ads?

Both フラッシュ暗算ドリル and Speed Math Drill show ads.

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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.*