# 株式会社環境総研 vs MOP38

The clearest difference is update cadence: 株式会社環境総研 at every 3 weeks against MOP38's every 2 months. 株式会社環境総研 also leads on iOS requirement (11.0 vs 14.0.0). 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.

株式会社環境総研 ships an update every 3 weeks, MOP38 every 2 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | 株式会社環境総研 | MOP38 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 53 MB | 38 MB |
| Requires iOS | **11.0** | 14.0.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Ashish Busi](https://appshunter.io/developer/1550890269) | [Nay Lin Aung](https://appshunter.io/developer/1690773269) |

## What reviewers say

### 株式会社環境総研

[App page](https://appshunter.io/ios/app/id1580740046)

**Features:** macOS Compatibility

**In-app purchases:** none


### MOP38

[App page](https://appshunter.io/ios/app/mop38/id6449845874)

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

**In-app purchases:** none


## Frequently asked questions

### Is 株式会社環境総研 free?

株式会社環境総研 is free to download, with no in-app purchases.

### Is MOP38 free?

MOP38 is free to download, with no in-app purchases.

### Do 株式会社環境総研 or MOP38 have ads?

Neither 株式会社環境総研 nor MOP38 shows ads.

### Which is updated more often, 株式会社環境総研 or MOP38?

株式会社環境総研 ships an update every 3 weeks, and MOP38 every 2 months. Most recently, 株式会社環境総研 was updated on October 27, 2026 and MOP38 on October 27, 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.*