# NBack³ vs まいにち頭の体操｜計算・記憶力・集中力

The clearest difference is ads: まいにち頭の体操｜計算・記憶力・集中力 at none against NBack³'s shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. NBack³ sells 1 in-app purchase, starting at $0.49 per month and まいにち頭の体操｜計算・記憶力・集中力 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

NBack³ ships an update every 4 days, まいにち頭の体操｜計算・記憶力・集中力 every 3 days. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | NBack³ | まいにち頭の体操｜計算・記憶力・集中力 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6795948085/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 11 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Taiki Nishimura](https://appshunter.io/developer/1780302048) | [JUNYA TOGA](https://appshunter.io/developer/6774049984) |

## What reviewers say

### NBack³

[App page](https://appshunter.io/ios/app/nback-memory-training-game/id6745750227)

This brain training app uses the scientifically proven Dual N-Back method to enhance cognitive functions like working memory, focus, and decision-making. It offers adjustable difficulty levels and tracks progress with a visually engaging interface.

**Highlights:** Dual N-Back method, Adjustable difficulty (n=1-5), Enhances working memory, Improves inhibitory control, Develops attention skills, Progress tracking, Streak bonus system

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.49 | per month |


### まいにち頭の体操｜計算・記憶力・集中力

[App page](https://appshunter.io/ios/app/id6795948085)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全種目を開く | $1.99 | one-time |


## Frequently asked questions

### Is NBack³ free?

NBack³ is free to download, with in-app purchases available.

### Is まいにち頭の体操｜計算・記憶力・集中力 free?

まいにち頭の体操｜計算・記憶力・集中力 is free to download, with in-app purchases available.

### Do NBack³ or まいにち頭の体操｜計算・記憶力・集中力 have ads?

NBack³ shows ads; まいにち頭の体操｜計算・記憶力・集中力 does not.

### Which is updated more often, NBack³ or まいにち頭の体操｜計算・記憶力・集中力?

NBack³ ships an update every 4 days, and まいにち頭の体操｜計算・記憶力・集中力 every 3 days. Most recently, NBack³ was updated on October 7, 2026 and まいにち頭の体操｜計算・記憶力・集中力 on October 22, 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.*