# どこでも計算ドリル 暗算トレーニングアプリ vs 1 Minute Mental Arithmetic

The clearest difference is ads: どこでも計算ドリル 暗算トレーニングアプリ at none against 1 Minute Mental Arithmetic's shown. どこでも計算ドリル 暗算トレーニングアプリ also leads on update cadence (weekly vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

どこでも計算ドリル 暗算トレーニングアプリ ships an update weekly, 1 Minute Mental Arithmetic every 6 weeks. The most recent releases landed on November 3, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | どこでも計算ドリル 暗算トレーニングアプリ | 1 Minute Mental Arithmetic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (32 ratings)](https://appshunter.io/ios/app/1-minute-mental-arithmetic/id1573246963/reviews)** |
| Number of ratings | — | **32** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | — | Ad-supported |
| Size | 5 MB | 87 MB |
| Requires iOS | **14.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Factory inc. (Apps)](https://appshunter.io/developer/1466745012) | [Hirokazu Uno](https://appshunter.io/developer/1570016990) |

## What reviewers say

### どこでも計算ドリル 暗算トレーニングアプリ

[App page](https://appshunter.io/ios/app/id1571452779)

**Features:** Vision Pro support

**In-app purchases:** none


### 1 Minute Mental Arithmetic

[App page](https://appshunter.io/ios/app/1-minute-mental-arithmetic/id1573246963)

Practice mental arithmetic for one minute daily to sharpen your cognitive skills. This app is also designed to assist children in learning basic calculations and improving their math abilities.

**Highlights:** Daily 1-minute mental arithmetic practice, Brain training exercises, Assists children in learning calculations, Improves cognitive skills, Simple and focused interface

**In-app purchases:** none


## Frequently asked questions

### Is どこでも計算ドリル 暗算トレーニングアプリ free?

どこでも計算ドリル 暗算トレーニングアプリ is free to download, with no in-app purchases.

### Is 1 Minute Mental Arithmetic free?

1 Minute Mental Arithmetic is free to download, with no in-app purchases.

### Do どこでも計算ドリル 暗算トレーニングアプリ or 1 Minute Mental Arithmetic have ads?

1 Minute Mental Arithmetic shows ads; どこでも計算ドリル 暗算トレーニングアプリ does not.

### Which is updated more often, どこでも計算ドリル 暗算トレーニングアプリ or 1 Minute Mental Arithmetic?

どこでも計算ドリル 暗算トレーニングアプリ ships an update weekly, and 1 Minute Mental Arithmetic every 6 weeks. Most recently, どこでも計算ドリル 暗算トレーニングアプリ was updated on November 3, 2026 and 1 Minute Mental Arithmetic on November 11, 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.*