# フラッシュ暗算ドリル vs Abacus Practice

The clearest difference is price: フラッシュ暗算ドリル at Free against Abacus Practice's $0.99. フラッシュ暗算ドリル also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 17.0). Abacus Practice's advantage is ads (none vs shown). On device support there is nothing between them.

フラッシュ暗算ドリル is free to download; Abacus Practice costs $0.99 up front. Abacus Practice 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 | Abacus Practice |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 24 MB | 18 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Katsuyuki Hayashi](https://appshunter.io/developer/1597263179) | [SMART BIT K.K](https://appshunter.io/developer/1896559487) |

## 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


### Abacus Practice

[App page](https://appshunter.io/ios/app/abacus-practice-mental-math/id6770438521)

Practice abacus, mental arithmetic, and calculation skills on your iPhone or iPad. Features a realistic abacus interface for various exercises, including addition, subtraction, multiplication, division, and flash calculations. Track your progress and review your performance over time.

**Highlights:** Realistic abacus interface, Practice addition, subtraction, multiplication, division, Flash and slip calculations, Customizable problem generation, Practice history and performance records, Adjustable settings for sound, vibration, and left-handed mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proアンロック | $2.99 | 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 Abacus Practice free?

Abacus Practice costs $0.99, and also offers in-app purchases.

### Do フラッシュ暗算ドリル or Abacus Practice have ads?

フラッシュ暗算ドリル shows ads; Abacus Practice 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.*