# N'Back 10 vs 代弁さん

The clearest difference is price: 代弁さん at Free against N'Back 10's $2.99. 代弁さん also leads on update cadence (every 2 weeks vs every 12 months). N'Back 10's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

代弁さん is free to download; N'Back 10 costs $2.99 up front. 代弁さん sells 1 one-off in-app purchase. N'Back 10 asks for nothing beyond the download.

N'Back 10 ships an update every 12 months, 代弁さん every 2 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | N'Back 10 | 代弁さん |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nback-10/id588985886/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 20 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [YUTA SUITO](https://appshunter.io/developer/1852948460) |

## What reviewers say

### N'Back 10

[App page](https://appshunter.io/ios/app/nback-10/id588985886)

Enhance sensory and working memory with this cognitive training tool. It offers various modes and difficulty levels to challenge your recall abilities by matching current stimuli to those from a specified number of steps prior.

**Highlights:** N'Back training (1-Back to 10-Back), Flash Mode, Slow Mode, Step Mode, Sequence memorization, Stimulus matching

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

**In-app purchases:** none


### 代弁さん

[App page](https://appshunter.io/ios/app/id6755288099)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Mode | $3.99 | one-time |


## Frequently asked questions

### Is N'Back 10 free?

N'Back 10 costs $2.99, with no in-app purchases.

### Is 代弁さん free?

代弁さん is free to download, with in-app purchases available.

### Do N'Back 10 or 代弁さん have ads?

Neither N'Back 10 nor 代弁さん shows ads.

### Which is updated more often, N'Back 10 or 代弁さん?

N'Back 10 ships an update every 12 months, and 代弁さん every 2 weeks. Most recently, N'Back 10 was updated on November 1, 2026 and 代弁さん on October 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.*