# D vs 高圧ガス販売主任者 | 2026年対策問題

The clearest difference is price: D at Free against 高圧ガス販売主任者 | 2026年対策問題's $1.99. D also leads on iOS requirement (13.4 vs 17.0). 高圧ガス販売主任者 | 2026年対策問題's advantage is update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

D is free to download; 高圧ガス販売主任者 | 2026年対策問題 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

D ships an update every 2 months, 高圧ガス販売主任者 | 2026年対策問題 every 3 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | D | 高圧ガス販売主任者 | 2026年対策問題 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 25 MB | 5 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [株式会社プロフィット](https://appshunter.io/developer/1436932952) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-sma/id1436932953)

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

**In-app purchases:** none


### 高圧ガス販売主任者 | 2026年対策問題

[App page](https://appshunter.io/ios/app/2026/id6783184029)

This app provides 600 original practice questions for the Class 2 High Pressure Gas Sales Manager exam. It covers various topics like laws, safety management, and accident prevention, with detailed explanations for each answer. The app supports offline use and is a one-time purchase with no ads or additional charges.

**Highlights:** 600 original practice questions, Covers laws, safety, and accident prevention, Detailed explanations for answers, Offline use supported, One-time purchase, no ads or in-app purchases

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

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is 高圧ガス販売主任者 | 2026年対策問題 free?

高圧ガス販売主任者 | 2026年対策問題 costs $1.99, with no in-app purchases.

### Do D or 高圧ガス販売主任者 | 2026年対策問題 have ads?

Neither D nor 高圧ガス販売主任者 | 2026年対策問題 shows ads.

### Which is updated more often, D or 高圧ガス販売主任者 | 2026年対策問題?

D ships an update every 2 months, and 高圧ガス販売主任者 | 2026年対策問題 every 3 weeks. Most recently, D was updated on October 18, 2026 and 高圧ガス販売主任者 | 2026年対策問題 on October 15, 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.*