# 第2種作業環境 vs 高圧ガス製造保安責任者試験 合格ドリル

The clearest difference is in-app purchases: 高圧ガス製造保安責任者試験 合格ドリル at none against 第2種作業環境's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 第2種作業環境 sells 1 one-off in-app purchase. 高圧ガス製造保安責任者試験 合格ドリル asks for nothing beyond the download.

第2種作業環境 ships an update every 6 days, 高圧ガス製造保安責任者試験 合格ドリル every 9 days. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 第2種作業環境 | 高圧ガス製造保安責任者試験 合格ドリル |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 9 days |
| Size | 5 MB | 52 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### 第2種作業環境

[App page](https://appshunter.io/ios/app/2/id6757169001)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 第二種作業環境測定士 試験対策 | $1.99 | one-time |


### 高圧ガス製造保安責任者試験 合格ドリル

[App page](https://appshunter.io/ios/app/id6766356552)

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

**In-app purchases:** none


## Frequently asked questions

### Is 第2種作業環境 free?

第2種作業環境 is free to download, with in-app purchases available.

### Is 高圧ガス製造保安責任者試験 合格ドリル free?

高圧ガス製造保安責任者試験 合格ドリル is free to download, with no in-app purchases.

### Do 第2種作業環境 or 高圧ガス製造保安責任者試験 合格ドリル have ads?

Neither 第2種作業環境 nor 高圧ガス製造保安責任者試験 合格ドリル shows ads.

### Which is updated more often, 第2種作業環境 or 高圧ガス製造保安責任者試験 合格ドリル?

第2種作業環境 ships an update every 6 days, and 高圧ガス製造保安責任者試験 合格ドリル every 9 days. Most recently, 第2種作業環境 was updated on October 19, 2026 and 高圧ガス製造保安責任者試験 合格ドリル on October 5, 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.*