# 스마트 가스 스니퍼 vs 무사고 디스플레이

The clearest difference is device support: 스마트 가스 스니퍼 at 3 against 무사고 디스플레이's 1. 스마트 가스 스니퍼 also leads on iOS requirement (15.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 스마트 가스 스니퍼 | 무사고 디스플레이 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 33 MB | 20 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NodeTalks](https://appshunter.io/developer/1499948406) | [Story4you](https://appshunter.io/developer/1177380137) |

## What reviewers say

### 스마트 가스 스니퍼

[App page](https://appshunter.io/ios/app/o2-co-h2s/id1517357092)

This app connects to a G-Tag device to display real-time gas levels for O2, CO, and H2S. It provides alerts for dangerous situations, logs alarm history with location data, and allows emergency contact notifications. The app runs in the background for continuous monitoring.

**Highlights:** Real-time O2, CO, H2S gas level display, Connects with G-Tag device, Emergency contact notifications, Alarm history with location logging, Background operation for continuous monitoring, Battery level indicator

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

**In-app purchases:** none


### 무사고 디스플레이

[App page](https://appshunter.io/ios/app/id6776998633)

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

**In-app purchases:** none


## Frequently asked questions

### Is 스마트 가스 스니퍼 free?

스마트 가스 스니퍼 is free to download, with no in-app purchases.

### Is 무사고 디스플레이 free?

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

### Do 스마트 가스 스니퍼 or 무사고 디스플레이 have ads?

Neither 스마트 가스 스니퍼 nor 무사고 디스플레이 shows ads.

---

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