# N vs 闪电单词

The clearest difference is price: N at Free against 闪电单词's $0.99. 闪电单词's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

N is free to download; 闪电单词 costs $0.99 up front. N sells 1 in-app purchase, starting at $1.99 per month. 闪电单词 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | N | 闪电单词 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | Every 3 days |
| Size | 5 MB | 124 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Toru Fukui](https://appshunter.io/developer/1888097145) | [博 袁](https://appshunter.io/developer/1873213157) |

## What reviewers say

### N

[App page](https://appshunter.io/ios/app/n-back-brain-trainer/id6761675343)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |


### 闪电单词

[App page](https://appshunter.io/ios/app/id6785533787)

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

**In-app purchases:** none


## Frequently asked questions

### Is N free?

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

### Is 闪电单词 free?

闪电单词 costs $0.99, with no in-app purchases.

### Do N or 闪电单词 have ads?

N shows ads; 闪电单词 does not.

### Which is updated more often, N or 闪电单词?

N ships an update every 3 days, and 闪电单词 every 3 days. Most recently, N was updated on October 28, 2026 and 闪电单词 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.*