# Calculation Training For Brain vs 脳トレ！間違い探し

Calculation Training For Brain and 脳トレ！間違い探し both sit at 4.4 stars, but that hides the real split: 86% of Calculation Training For Brain's written reviews are positive against 50% of 脳トレ！間違い探し's. 脳トレ！間違い探し's advantage is in-app purchases (none vs 1). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Calculation Training For Brain sells 1 one-off in-app purchase. 脳トレ！間違い探し asks for nothing beyond the download.

脳トレ！間違い探し holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 14 and 27 respectively. Written reviews complicate that: 86% of Calculation Training For Brain's written reviews are positive against 50% of 脳トレ！間違い探し's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 21, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Calculation Training For Brain | 脳トレ！間違い探し |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (14 ratings)](https://appshunter.io/ios/app/calculation-training-for-brain/id1159243202/reviews) | **[4.6 (27 ratings)](https://appshunter.io/ios/app/id1480969536/reviews)** |
| Number of ratings | 14 | **27** |
| Positive reviews | **86.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 47 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masaki Kanno](https://appshunter.io/developer/843112443) | [nullhouse Inc.](https://appshunter.io/developer/853672308) |

## 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 |


### 脳トレ！間違い探し

[App page](https://appshunter.io/ios/app/id1480969536)

**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 脳トレ！間違い探し free?

脳トレ！間違い探し is free to download, with no in-app purchases.

### Which has better reviews, Calculation Training For Brain or 脳トレ！間違い探し?

脳トレ！間違い探し is rated higher. Calculation Training For Brain averages 4.4 out of 5 from 14 ratings, while 脳トレ！間違い探し averages 4.6 from 27 ratings.

### Do Calculation Training For Brain or 脳トレ！間違い探し have ads?

Both Calculation Training For Brain and 脳トレ！間違い探し show ads.

### Which is updated more often, Calculation Training For Brain or 脳トレ！間違い探し?

Calculation Training For Brain ships an update every 5 months, and 脳トレ！間違い探し every 5 months. Most recently, Calculation Training For Brain was updated on October 21, 2026 and 脳トレ！間違い探し on October 26, 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.*