# Re vs ワーキングメモリトレーニング

The clearest difference is in-app purchases: Re at none against ワーキングメモリトレーニング's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ワーキングメモリトレーニング sells 2 one-off in-app purchases. Re asks for nothing beyond the download.

Re ships an update every 2 months, ワーキングメモリトレーニング every 6 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Re | ワーキングメモリトレーニング |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 12 MB | 55 MB |
| Requires iOS | **17.6** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [有限会社知識情報研究所](https://appshunter.io/developer/418530418) | [Takahiro Kogawa](https://appshunter.io/developer/1886613808) |

## What reviewers say

### Re

[App page](https://appshunter.io/ios/app/renum7/id6756367953)

**In-app purchases:** none


### 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 Re free?

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

### 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 Re or ワーキングメモリトレーニング have ads?

Both Re and ワーキングメモリトレーニング show ads.

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

Re ships an update every 2 months, and ワーキングメモリトレーニング every 6 weeks. Most recently, Re was updated on October 15, 2026 and ワーキングメモリトレーニング on October 7, 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.*