# 건축기사 vs 산업안전기사

The clearest difference is review sentiment: 건축기사 at 100% against 산업안전기사's 0%. 건축기사 also leads on in-app purchases (none vs 1). 산업안전기사's advantage is update cadence (every 8 days vs every 3 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. 산업안전기사 sells 1 one-off in-app purchase. 건축기사 asks for nothing beyond the download.

건축기사 ships an update every 3 months, 산업안전기사 every 8 days. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 건축기사 | 산업안전기사 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 237 MB | 34 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jongmin Kim](https://appshunter.io/developer/1693759760) | [Qingdao Tomato Creative Technology Service Co., Ltd](https://appshunter.io/developer/1760477498) |

## What reviewers say

### 건축기사

[App page](https://appshunter.io/ios/app/id6740074769)

Prepare for the architectural engineer certification exam with this app. It offers past exam questions, detailed explanations, and audio playback for all problems. Features include an error note, favorites, random quizzes, and offline access.

**Highlights:** Yearly and subject-based past questions, Detailed explanations for all questions, Automatic saving of incorrect answers, Favorite questions for review, Random quiz mode, Audio playback for questions, Lecture videos and study notes, Offline access

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

**In-app purchases:** none


### 산업안전기사

[App page](https://appshunter.io/ios/app/cbt/id6741500736)

This app provides extensive past exam questions and detailed explanations to help users prepare for the Industrial Safety Engineer certification. It features intelligent error management, personalized favorites, and offline access for flexible learning. All core learning materials are available for free.

**Highlights:** 10 years of past exam questions, Scientific problem-solving by type, Detailed problem explanations, Intelligent incorrect answer management, Personalized favorites feature, Offline learning support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $3.99 | one-time |


## Frequently asked questions

### Is 건축기사 free?

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

### Is 산업안전기사 free?

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

### Do 건축기사 or 산업안전기사 have ads?

Both 건축기사 and 산업안전기사 show ads.

### Which is updated more often, 건축기사 or 산업안전기사?

건축기사 ships an update every 3 months, and 산업안전기사 every 8 days. Most recently, 건축기사 was updated on November 4, 2026 and 산업안전기사 on October 30, 2026.

---

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