# フラッシュ暗算検定模試（協会） vs Highspeed Math

The clearest difference is price: Highspeed Math at Free against フラッシュ暗算検定模試（協会）'s $3.99. Highspeed Math also leads on update cadence (monthly vs every 28 months). フラッシュ暗算検定模試（協会）'s advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 11.0). On rating, ratings volume, ads and device support there is nothing between them.

Highspeed Math is free to download; フラッシュ暗算検定模試（協会） costs $3.99 up front. Highspeed Math sells 1 one-off in-app purchase. フラッシュ暗算検定模試（協会） asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.0 for フラッシュ暗算検定模試（協会） against 3.0 for Highspeed Math. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

フラッシュ暗算検定模試（協会） ships an update every 28 months, Highspeed Math monthly. The most recent releases landed on September 14, 2026 and June 13, 2026 respectively.

## The numbers

| Metric | フラッシュ暗算検定模試（協会） | Highspeed Math |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/id879920206/reviews) | [3.0 (1 ratings)](https://appshunter.io/ios/app/highspeed-math/id6449271751/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 223 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Yuji Miyamoto](https://appshunter.io/developer/417390646) | [Fantamstick, Ltd.](https://appshunter.io/developer/563146308) |

## What reviewers say

### フラッシュ暗算検定模試（協会）

[App page](https://appshunter.io/ios/app/id879920206)

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

**In-app purchases:** none


### Highspeed Math

[App page](https://appshunter.io/ios/app/highspeed-math/id6449271751)

Engage in an exciting arithmetic challenge that transforms learning math into a thrilling adventure. Solve equations against the clock, defeat monsters, and collect cards and items to enhance your gameplay. This app makes mastering arithmetic fun and intellectually stimulating for all ages.

**Highlights:** Arithmetic challenges against the clock, Defeat monsters by solving equations, Collect character and item cards, Unlock unique vehicles, Curriculum-aligned challenges, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ハイスピード　全コース開放 | $9.99 | one-time |


## Frequently asked questions

### Is フラッシュ暗算検定模試（協会） free?

フラッシュ暗算検定模試（協会） costs $3.99, with no in-app purchases.

### Is Highspeed Math free?

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

### Which has better reviews, フラッシュ暗算検定模試（協会） or Highspeed Math?

フラッシュ暗算検定模試（協会） and Highspeed Math are both rated 3.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do フラッシュ暗算検定模試（協会） or Highspeed Math have ads?

Neither フラッシュ暗算検定模試（協会） nor Highspeed Math shows ads.

### Which is updated more often, フラッシュ暗算検定模試（協会） or Highspeed Math?

フラッシュ暗算検定模試（協会） ships an update every 28 months, and Highspeed Math monthly. Most recently, フラッシュ暗算検定模試（協会） was updated on September 14, 2026 and Highspeed Math on June 13, 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.*