# 환경자격증 기출문제 vs 위험물기능사

The clearest difference is in-app purchases: 환경자격증 기출문제 at none against 위험물기능사's 2. 위험물기능사's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. 위험물기능사 sells 2 one-off in-app purchases. 환경자격증 기출문제 asks for nothing beyond the download.

환경자격증 기출문제 ships an update every 3 months, 위험물기능사 every 5 weeks. The most recent releases landed on August 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 환경자격증 기출문제 | 위험물기능사 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 90 MB | 90 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Trutory Co., Ltd.](https://appshunter.io/developer/515679860) | [Jongmin Kim](https://appshunter.io/developer/1693759760) |

## What reviewers say

### 환경자격증 기출문제

[App page](https://appshunter.io/ios/app/id6502931007)

Access past exam questions for various environmental certifications. Choose your exam, practice with different modes, and review your performance. Ads can be removed via subscription.

**Highlights:** Extensive past exam questions, Multiple exam options, Study and practice modes, Answer and incorrect answer notes, Bookmark important questions, Automatic progression option

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

**In-app purchases:** none


### 위험물기능사

[App page](https://appshunter.io/ios/app/id6740766549)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $2.99 | one-time |
| 후원 하기 | $5.99 | one-time |


## Frequently asked questions

### Is 환경자격증 기출문제 free?

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

### Is 위험물기능사 free?

위험물기능사 is free to download, with in-app purchases available.

### Do 환경자격증 기출문제 or 위험물기능사 have ads?

Both 환경자격증 기출문제 and 위험물기능사 show ads.

### Which is updated more often, 환경자격증 기출문제 or 위험물기능사?

환경자격증 기출문제 ships an update every 3 months, and 위험물기능사 every 5 weeks. Most recently, 환경자격증 기출문제 was updated on August 21, 2026 and 위험물기능사 on September 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.*