# Calculation Training For Brain vs どこでも計算ドリル 暗算トレーニングアプリ

The clearest difference is in-app purchases: どこでも計算ドリル 暗算トレーニングアプリ at none against Calculation Training For Brain's 1. どこでも計算ドリル 暗算トレーニングアプリ also leads on ads (none vs shown) and update cadence (weekly vs every 5 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculation Training For Brain sells 1 one-off in-app purchase. どこでも計算ドリル 暗算トレーニングアプリ asks for nothing beyond the download.

Calculation Training For Brain ships an update every 5 months, どこでも計算ドリル 暗算トレーニングアプリ weekly. The most recent releases landed on October 21, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Calculation Training For Brain | どこでも計算ドリル 暗算トレーニングアプリ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (14 ratings)](https://appshunter.io/ios/app/calculation-training-for-brain/id1159243202/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 86.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 5 MB |
| Requires iOS | 15.0 | **14.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masaki Kanno](https://appshunter.io/developer/843112443) | [Factory inc. (Apps)](https://appshunter.io/developer/1466745012) |

## What reviewers say

### Calculation Training For Brain

[App page](https://appshunter.io/ios/app/calculation-training-for-brain/id1159243202)

Practice basic math calculations with this engaging app designed for all ages. Improve mental math skills through fun, game-like exercises. Choose your difficulty, duration, and calculation type for daily brain training.

**Highlights:** Basic math calculation practice, Suitable for all ages, Game-like engagement, Customizable difficulty, duration, and calculation type, Addition, subtraction, multiplication, division, and mixed operations

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


### 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


## Frequently asked questions

### Is Calculation Training For Brain free?

Calculation Training For Brain is free to download, with in-app purchases available.

### 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.

### Do Calculation Training For Brain or どこでも計算ドリル 暗算トレーニングアプリ have ads?

Calculation Training For Brain 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, Calculation Training For Brain or どこでも計算ドリル 暗算トレーニングアプリ?

Calculation Training For Brain ships an update every 5 months, and どこでも計算ドリル 暗算トレーニングアプリ weekly. Most recently, Calculation Training For Brain was updated on October 21, 2026 and どこでも計算ドリル 暗算トレーニングアプリ on October 5, 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.*