# 환경자격증 기출문제 vs Lumio

The clearest difference is in-app purchases: 환경자격증 기출문제 at none against Lumio's 4. 환경자격증 기출문제 also leads on iOS requirement (14.0 vs 26.0). Lumio's advantage is ads (none vs shown) and update cadence (every 8 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Lumio sells 4 one-off in-app purchases. 환경자격증 기출문제 asks for nothing beyond the download.

환경자격증 기출문제 ships an update every 3 months, Lumio every 8 days. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 환경자격증 기출문제 | Lumio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 90 MB | 7 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Trutory Co., Ltd.](https://appshunter.io/developer/515679860) | [JunYoung Lee](https://appshunter.io/developer/1865681206) |

## 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


### Lumio

[App page](https://appshunter.io/ios/app/lumio/id6787978660)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 55 Credits Pack | $0.99 | one-time |
| 260 Credits Pack | $1.99 | one-time |
| 650 Credits Pack | $4.99 | one-time |
| 2000 Credits Pack | $9.99 | one-time |


## Frequently asked questions

### Is 환경자격증 기출문제 free?

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

### Is Lumio free?

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

### Do 환경자격증 기출문제 or Lumio have ads?

환경자격증 기출문제 shows ads; Lumio does not.

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

환경자격증 기출문제 ships an update every 3 months, and Lumio every 8 days. Most recently, 환경자격증 기출문제 was updated on October 21, 2026 and Lumio 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.*