# N'Back 10 Dual vs JSME 計算力学技術者試験 流体１級対策（単相流）

The clearest difference is price: N'Back 10 Dual at $2.99 against JSME 計算力学技術者試験 流体１級対策（単相流）'s $9.99. JSME 計算力学技術者試験 流体１級対策（単相流）'s advantage is update cadence (every 2 months vs every 10 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

N'Back 10 Dual costs $2.99 and JSME 計算力学技術者試験 流体１級対策（単相流） $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

N'Back 10 Dual ships an update every 10 months, JSME 計算力学技術者試験 流体１級対策（単相流） every 2 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | N'Back 10 Dual | JSME 計算力学技術者試験 流体１級対策（単相流） |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 1 MB | 41 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [Daisuke Matsubara](https://appshunter.io/developer/1720755722) |

## What reviewers say

### N'Back 10 Dual

[App page](https://appshunter.io/ios/app/nback-10-dual/id1566085207)

This application offers a dual-task version of the n-back memory game, challenging users to track and recall sequences across multiple simultaneous tasks. It features adjustable flash times and two distinct modes for varied cognitive training.

**Highlights:** Dual-task n-back functionality, 1'Back to 10'Back levels, Flash Mode and Step Mode, Adjustable flash time, Multiple simultaneous memory tasks

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

**In-app purchases:** none


### JSME 計算力学技術者試験 流体１級対策（単相流）

[App page](https://appshunter.io/ios/app/jsme/id6738888176)

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

**In-app purchases:** none


## Frequently asked questions

### Is N'Back 10 Dual free?

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

### Is JSME 計算力学技術者試験 流体１級対策（単相流） free?

JSME 計算力学技術者試験 流体１級対策（単相流） costs $9.99, with no in-app purchases.

### Do N'Back 10 Dual or JSME 計算力学技術者試験 流体１級対策（単相流） have ads?

Neither N'Back 10 Dual nor JSME 計算力学技術者試験 流体１級対策（単相流） shows ads.

### Which is updated more often, N'Back 10 Dual or JSME 計算力学技術者試験 流体１級対策（単相流）?

N'Back 10 Dual ships an update every 10 months, and JSME 計算力学技術者試験 流体１級対策（単相流） every 2 months. Most recently, N'Back 10 Dual was updated on October 24, 2026 and JSME 計算力学技術者試験 流体１級対策（単相流） 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.*