# N vs Ultra N Back

The clearest difference is update cadence: Ultra N Back at every 4 days against N's every 8 days. Ultra N Back also leads on iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. N sells 1 in-app purchase, starting at $7.49 per month and Ultra N Back sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

N ships an update every 8 days, Ultra N Back every 4 days. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | N | Ultra N Back |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 8 days | **Every 4 days** |
| Size | 28 MB | 57 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [chunson yamada](https://appshunter.io/developer/1538754889) | [Ayumu Kawahara](https://appshunter.io/developer/1835186601) |

## What reviewers say

### N

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

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| １ヶ月プラン | $7.49 | per month |


### Ultra N Back

[App page](https://appshunter.io/ios/app/ultra-n-back-brain-training/id6751448185)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $0.99 | per month |
| Unlimited Plan | $1.99 | per month |


## Frequently asked questions

### Is N free?

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

### Is Ultra N Back free?

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

### Do N or Ultra N Back have ads?

Both N and Ultra N Back show ads.

### Which is updated more often, N or Ultra N Back?

N ships an update every 8 days, and Ultra N Back every 4 days. Most recently, N was updated on November 12, 2026 and Ultra N Back 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.*