# Calculation Training For Brain vs たし算フェアリー

The clearest difference is in-app purchases: たし算フェアリー at none against Calculation Training For Brain's 1. たし算フェアリー also leads on ads (none vs shown) and update cadence (fortnightly vs every 5 months). Calculation Training For Brain's advantage is iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Calculation Training For Brain sells 1 one-off in-app purchase. たし算フェアリー asks for nothing beyond the download.

Calculation Training For Brain ships an update every 5 months, たし算フェアリー fortnightly. The most recent releases landed on October 21, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Calculation Training For Brain | たし算フェアリー |
| --- | --- | --- |
| 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 | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 26 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Masaki Kanno](https://appshunter.io/developer/843112443) | [Seiji Kinoshita](https://appshunter.io/developer/1812858170) |

## 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 |


### たし算フェアリー

[App page](https://appshunter.io/ios/app/id6759947261)

**Features:** macOS Compatibility, 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 たし算フェアリー free?

たし算フェアリー is free to download, with no in-app purchases.

### Do Calculation Training For Brain or たし算フェアリー have ads?

Calculation Training For Brain shows ads; たし算フェアリー does not.

### Which is updated more often, Calculation Training For Brain or たし算フェアリー?

Calculation Training For Brain ships an update every 5 months, and たし算フェアリー fortnightly. Most recently, Calculation Training For Brain was updated on October 21, 2026 and たし算フェアリー on September 30, 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.*