# 脳トレ！神経衰弱・四字熟語 vs SousyoPelmanism byNSDev

The clearest difference is update cadence: 脳トレ！神経衰弱・四字熟語 at every 2 months against SousyoPelmanism byNSDev's every 39 months. 脳トレ！神経衰弱・四字熟語 also leads on iOS requirement (8.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

脳トレ！神経衰弱・四字熟語 ships an update every 2 months, SousyoPelmanism byNSDev every 39 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | 脳トレ！神経衰弱・四字熟語 | SousyoPelmanism byNSDev |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 39 months |
| Size | 6 MB | 15 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Topleftsoft LLC](https://appshunter.io/developer/452754001) | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) |

## What reviewers say

### 脳トレ！神経衰弱・四字熟語

[App page](https://appshunter.io/ios/app/id975001201)

**Features:** Vision Pro support

**In-app purchases:** none


### SousyoPelmanism byNSDev

[App page](https://appshunter.io/ios/app/sousyopelmanism-bynsdev/id1275051253)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 脳トレ！神経衰弱・四字熟語 free?

脳トレ！神経衰弱・四字熟語 is free to download, with no in-app purchases.

### Is SousyoPelmanism byNSDev free?

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

### Do 脳トレ！神経衰弱・四字熟語 or SousyoPelmanism byNSDev have ads?

Neither 脳トレ！神経衰弱・四字熟語 nor SousyoPelmanism byNSDev shows ads.

### Which is updated more often, 脳トレ！神経衰弱・四字熟語 or SousyoPelmanism byNSDev?

脳トレ！神経衰弱・四字熟語 ships an update every 2 months, and SousyoPelmanism byNSDev every 39 months. Most recently, 脳トレ！神経衰弱・四字熟語 was updated on October 29, 2026 and SousyoPelmanism byNSDev on October 29, 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.*