# 산업안전기사 vs 맞추다

The clearest difference is in-app purchases: 맞추다 at none against 산업안전기사's 1. 맞추다 also leads on ads (none vs shown) and update cadence (daily vs every 8 days). 산업안전기사's advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

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

산업안전기사 ships an update every 8 days, 맞추다 daily. The most recent releases landed on September 8, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | 산업안전기사 | 맞추다 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 25 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qingdao Tomato Creative Technology Service Co., Ltd](https://appshunter.io/developer/1760477498) | [MACHUDA Inc.](https://appshunter.io/developer/1597442383) |

## What reviewers say

### 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 |


### 맞추다

[App page](https://appshunter.io/ios/app/id6763970905)

**In-app purchases:** none


## Frequently asked questions

### Is 산업안전기사 free?

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

### Is 맞추다 free?

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

### Do 산업안전기사 or 맞추다 have ads?

산업안전기사 shows ads; 맞추다 does not.

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

산업안전기사 ships an update every 8 days, and 맞추다 daily. Most recently, 산업안전기사 was updated on September 8, 2026 and 맞추다 on September 1, 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.*