# 3D記憶力テスト～脳トレ・認知症予防アプリ vs かんたん計算脳トレ

The clearest difference is update cadence: かんたん計算脳トレ at every 6 weeks against 3D記憶力テスト～脳トレ・認知症予防アプリ's every 29 months. On price, ads, in-app purchases and device support there is nothing between them.

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

3D記憶力テスト～脳トレ・認知症予防アプリ ships an update every 29 months, かんたん計算脳トレ every 6 weeks. The most recent releases landed on September 19, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | 3D記憶力テスト～脳トレ・認知症予防アプリ | かんたん計算脳トレ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 29 months | **Every 6 weeks** |
| Size | 199 MB | 119 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takuma Takahashi](https://appshunter.io/developer/1514411811) | [ZERONE](https://appshunter.io/developer/1708775781) |

## What reviewers say

### 3D記憶力テスト～脳トレ・認知症予防アプリ

[App page](https://appshunter.io/ios/app/3d/id1528475226)

**Features:** macOS Compatibility

**In-app purchases:** none


### かんたん計算脳トレ

[App page](https://appshunter.io/ios/app/vs/id1554033277)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D記憶力テスト～脳トレ・認知症予防アプリ free?

3D記憶力テスト～脳トレ・認知症予防アプリ is free to download, with no in-app purchases.

### Is かんたん計算脳トレ free?

かんたん計算脳トレ is free to download, with no in-app purchases.

### Do 3D記憶力テスト～脳トレ・認知症予防アプリ or かんたん計算脳トレ have ads?

Both 3D記憶力テスト～脳トレ・認知症予防アプリ and かんたん計算脳トレ show ads.

### Which is updated more often, 3D記憶力テスト～脳トレ・認知症予防アプリ or かんたん計算脳トレ?

3D記憶力テスト～脳トレ・認知症予防アプリ ships an update every 29 months, and かんたん計算脳トレ every 6 weeks. Most recently, 3D記憶力テスト～脳トレ・認知症予防アプリ was updated on September 19, 2026 and かんたん計算脳トレ on September 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.*