# N vs Onikeisan

The clearest difference is in-app purchases: Onikeisan at none against N's 1. Onikeisan also leads on ads (none vs shown) and iOS requirement (12.0 vs 26.0). N's advantage is update cadence (every 4 days vs every 9 days). On price and device support there is nothing between them.

Both are free to download. N sells 1 in-app purchase, starting at $0.99 per month. Onikeisan asks for nothing beyond the download.

N ships an update every 4 days, Onikeisan every 9 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | N | Onikeisan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 9 days |
| Size | 21 MB | 37 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [chunson yamada](https://appshunter.io/developer/1538754889) | [iori kojima](https://appshunter.io/developer/1493044568) |

## What reviewers say

### N

[App page](https://appshunter.io/ios/app/n-back-training/id1627478554)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| １ヶ月プラン | $0.99 | per month |


### Onikeisan

[App page](https://appshunter.io/ios/app/onikeisan-n-back/id6745093026)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is N free?

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

### Is Onikeisan free?

Onikeisan is free to download, with no in-app purchases.

### Do N or Onikeisan have ads?

N shows ads; Onikeisan does not.

### Which is updated more often, N or Onikeisan?

N ships an update every 4 days, and Onikeisan every 9 days. Most recently, N was updated on October 27, 2026 and Onikeisan 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.*