# ガス溶接作業主任者 vs 高圧ガス 第二種販売主任者 全240問

The clearest difference is update cadence: ガス溶接作業主任者 at every 6 days against 高圧ガス 第二種販売主任者 全240問's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ガス溶接作業主任者 sells 1 one-off in-app purchase and 高圧ガス 第二種販売主任者 全240問 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ガス溶接作業主任者 ships an update every 6 days, 高圧ガス 第二種販売主任者 全240問 every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ガス溶接作業主任者 | 高圧ガス 第二種販売主任者 全240問 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 5 MB | 32 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [Takuro Fukuma](https://appshunter.io/developer/1896728656) |

## What reviewers say

### ガス溶接作業主任者

[App page](https://appshunter.io/ios/app/id6757180464)

This app provides comprehensive study materials for the Certified Gas Welder exam. It features approximately 500 practice questions with detailed explanations, progress tracking, and flexible study modes. Learn efficiently anytime, anywhere, even offline.

**Highlights:** 500+ practice questions, Detailed explanations, Progress tracking, Customizable study modes, Offline access, Intuitive user interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ガス溶接作業主任者 試験対策 | $1.99 | one-time |


### 高圧ガス 第二種販売主任者 全240問

[App page](https://appshunter.io/ios/app/240/id6792695369)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全問解放（買い切り） | $6.99 | one-time |


## Frequently asked questions

### Is ガス溶接作業主任者 free?

ガス溶接作業主任者 is free to download, with in-app purchases available.

### Is 高圧ガス 第二種販売主任者 全240問 free?

高圧ガス 第二種販売主任者 全240問 is free to download, with in-app purchases available.

### Do ガス溶接作業主任者 or 高圧ガス 第二種販売主任者 全240問 have ads?

Neither ガス溶接作業主任者 nor 高圧ガス 第二種販売主任者 全240問 shows ads.

### Which is updated more often, ガス溶接作業主任者 or 高圧ガス 第二種販売主任者 全240問?

ガス溶接作業主任者 ships an update every 6 days, and 高圧ガス 第二種販売主任者 全240問 every 2 weeks. Most recently, ガス溶接作業主任者 was updated on October 28, 2026 and 高圧ガス 第二種販売主任者 全240問 on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*