# 技術士 一次試験（衛生工学部門） vs 炭素会計アドバイザー3級 問題集

The clearest difference is in-app purchases: 炭素会計アドバイザー3級 問題集 at none against 技術士 一次試験（衛生工学部門）'s 1. 技術士 一次試験（衛生工学部門）'s advantage is update cadence (every 2 days vs every 5 days) and iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. 技術士 一次試験（衛生工学部門） sells 1 one-off in-app purchase. 炭素会計アドバイザー3級 問題集 asks for nothing beyond the download.

技術士 一次試験（衛生工学部門） ships an update every 2 days, 炭素会計アドバイザー3級 問題集 every 5 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 技術士 一次試験（衛生工学部門） | 炭素会計アドバイザー3級 問題集 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | — | Freemium |
| Size | 4 MB | 43 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [Kazumasa Shimomura](https://appshunter.io/developer/1110502851) |

## What reviewers say

### 技術士 一次試験（衛生工学部門）

[App page](https://appshunter.io/ios/app/id6757382033)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 技術士（衛生工学部門） 試験対策 | $1.99 | one-time |


### 炭素会計アドバイザー3級 問題集

[App page](https://appshunter.io/ios/app/3/id6800426302)

Practice questions for the Carbon Accounting Advisor Level 3 exam, focusing on emissions calculation and decarbonization management. Learn efficiently with daily short study sessions, immediate feedback, and personalized review options.

**Highlights:** Practice ~300 questions, Field-specific and random question modes, Immediate answer and explanation, Review incorrect or flagged questions, Track progress and weak areas, Widget for quick study restart

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

**In-app purchases:** none


## Frequently asked questions

### Is 技術士 一次試験（衛生工学部門） free?

技術士 一次試験（衛生工学部門） is free to download, with in-app purchases available.

### Is 炭素会計アドバイザー3級 問題集 free?

炭素会計アドバイザー3級 問題集 is free to download, with no in-app purchases.

### Do 技術士 一次試験（衛生工学部門） or 炭素会計アドバイザー3級 問題集 have ads?

Neither 技術士 一次試験（衛生工学部門） nor 炭素会計アドバイザー3級 問題集 shows ads.

### Which is updated more often, 技術士 一次試験（衛生工学部門） or 炭素会計アドバイザー3級 問題集?

技術士 一次試験（衛生工学部門） ships an update every 2 days, and 炭素会計アドバイザー3級 問題集 every 5 days. Most recently, 技術士 一次試験（衛生工学部門） was updated on October 15, 2026 and 炭素会計アドバイザー3級 問題集 on October 8, 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.*