# Ultra N Back vs ワーキングメモリトレーニング

The clearest difference is update cadence: Ultra N Back at every 4 days against ワーキングメモリトレーニング's every 6 weeks. Ultra N Back also leads on iOS requirement (16.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Ultra N Back sells 2 in-app purchases, starting at $0.99 per month and ワーキングメモリトレーニング sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Ultra N Back ships an update every 4 days, ワーキングメモリトレーニング every 6 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Ultra N Back | ワーキングメモリトレーニング |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Size | 57 MB | 55 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ayumu Kawahara](https://appshunter.io/developer/1835186601) | [Takahiro Kogawa](https://appshunter.io/developer/1886613808) |

## What reviewers say

### 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 |


### ワーキングメモリトレーニング

[App page](https://appshunter.io/ios/app/n-back/id6761617765)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| プレミアム機能 | $1.99 | one-time |


## Frequently asked questions

### Is Ultra N Back free?

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

### Is ワーキングメモリトレーニング free?

ワーキングメモリトレーニング is free to download, with in-app purchases available.

### Do Ultra N Back or ワーキングメモリトレーニング have ads?

Both Ultra N Back and ワーキングメモリトレーニング show ads.

### Which is updated more often, Ultra N Back or ワーキングメモリトレーニング?

Ultra N Back ships an update every 4 days, and ワーキングメモリトレーニング every 6 weeks. Most recently, Ultra N Back was updated on October 30, 2026 and ワーキングメモリトレーニング on October 31, 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.*