# そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 vs Flash Mental Math (Anzan)

The clearest difference is in-app purchases: そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 at none against Flash Mental Math (Anzan)'s 1. そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 also leads on ads (none vs shown) and iOS requirement (6.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Flash Mental Math (Anzan) sells 1 in-app purchase, starting at $0.99 per month. そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 asks for nothing beyond the download.

そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 ships an update every 2 weeks, Flash Mental Math (Anzan) every 10 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 | Flash Mental Math (Anzan) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 54 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [suzuki katsuya](https://appshunter.io/developer/448034238) | [SIC Company Limited](https://appshunter.io/developer/1800842356) |

## What reviewers say

### そろばんふらっしゅ 〜そろばんで鍛える暗算力〜

[App page](https://appshunter.io/ios/app/id1073441902)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flash Mental Math (Anzan)

[App page](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736)

This app helps users of all ages improve their mental math and calculation speed. Numbers flash on screen briefly, training quick thinking and concentration. It's ideal for children preparing for abacus certification, students needing math test prep, or adults seeking brain training.

**Highlights:** Flash number display for quick thinking, Adjustable difficulty levels, Global and classroom rankings, No account registration required, Supports multiple languages, Intuitive interface for children

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |


## Frequently asked questions

### Is そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 free?

そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 is free to download, with no in-app purchases.

### Is Flash Mental Math (Anzan) free?

Flash Mental Math (Anzan) is free to download, with in-app purchases available.

### Do そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 or Flash Mental Math (Anzan) have ads?

Flash Mental Math (Anzan) shows ads; そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 does not.

### Which is updated more often, そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 or Flash Mental Math (Anzan)?

そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 ships an update every 2 weeks, and Flash Mental Math (Anzan) every 10 days. Most recently, そろばんふらっしゅ 〜そろばんで鍛える暗算力〜 was updated on October 12, 2026 and Flash Mental Math (Anzan) on October 7, 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.*