# 測量士補の森 vs 公害防止管理者水質2種対策

The clearest difference is in-app purchases: 公害防止管理者水質2種対策 at none against 測量士補の森's 1. 測量士補の森's advantage is iOS requirement (13.0 vs 15.1). On update cadence, ads and device support there is nothing between them.

測量士補の森 ships an update every 6 weeks, 公害防止管理者水質2種対策 every 2 months. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 測量士補の森 | 公害防止管理者水質2種対策 |
| --- | --- | --- |
| Price | **Free** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 108 MB | 34 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [合同会社OLA](https://appshunter.io/developer/1832165711) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### 測量士補の森

[App page](https://appshunter.io/ios/app/id6761599277)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全ての年度をアンロック | $2.99 | one-time |


### 公害防止管理者水質2種対策

[App page](https://appshunter.io/ios/app/2/id6775329665)

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

**In-app purchases:** none


## Frequently asked questions

### Is 測量士補の森 free?

測量士補の森 is free to download, with in-app purchases available.

### Is 公害防止管理者水質2種対策 free?

Pricing for 公害防止管理者水質2種対策 is not currently listed on the App Store.

### Do 測量士補の森 or 公害防止管理者水質2種対策 have ads?

Neither 測量士補の森 nor 公害防止管理者水質2種対策 shows ads.

### Which is updated more often, 測量士補の森 or 公害防止管理者水質2種対策?

測量士補の森 ships an update every 6 weeks, and 公害防止管理者水質2種対策 every 2 months. Most recently, 測量士補の森 was updated on October 12, 2026 and 公害防止管理者水質2種対策 on October 13, 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.*