# N'Back 10 vs Re

The clearest difference is price: Re at Free against N'Back 10's $2.99. Re also leads on update cadence (every 5 weeks vs every 12 months). N'Back 10's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Re is free to download; N'Back 10 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

N'Back 10 ships an update every 12 months, Re every 5 weeks. The most recent releases landed on September 11, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | N'Back 10 | Re |
| --- | --- | --- |
| 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 | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 9 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [有限会社知識情報研究所](https://appshunter.io/developer/418530418) |

## 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


### Re

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

**In-app purchases:** none


## Frequently asked questions

### Is N'Back 10 free?

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

### Is Re free?

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

### Do N'Back 10 or Re have ads?

Re shows ads; N'Back 10 does not.

### Which is updated more often, N'Back 10 or Re?

N'Back 10 ships an update every 12 months, and Re every 5 weeks. Most recently, N'Back 10 was updated on September 11, 2026 and Re on May 17, 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.*