# 셀리온 스마트 BT vs 항공날씨

The clearest difference is review sentiment: 항공날씨 at 55% against 셀리온 스마트 BT's 25%. On price, update cadence, 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.

셀리온 스마트 BT ships an update monthly, 항공날씨 every 2 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 셀리온 스마트 BT | 항공날씨 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/bt/id1537929464/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | **54.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 23 MB | 84 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [에스피케어](https://appshunter.io/developer/1537929466) | [항공기상청](https://appshunter.io/developer/633395231) |

## What reviewers say

### 셀리온 스마트 BT

[App page](https://appshunter.io/ios/app/bt/id1537929464)

This app automatically adjusts the temperature of a connected heating mat based on the user's local external temperature. It uses a smart algorithm to ensure optimal comfort by syncing with real-time weather data.

**Highlights:** Automatic temperature adjustment, External temperature synchronization, Smart heating mat algorithm, User local temperature integration

**Features:** Vision Pro support

**In-app purchases:** none


### 항공날씨

[App page](https://appshunter.io/ios/app/id6444932886)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 셀리온 스마트 BT free?

셀리온 스마트 BT is free to download, with no in-app purchases.

### Is 항공날씨 free?

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

### Do 셀리온 스마트 BT or 항공날씨 have ads?

Neither 셀리온 스마트 BT nor 항공날씨 shows ads.

### Which is updated more often, 셀리온 스마트 BT or 항공날씨?

셀리온 스마트 BT ships an update monthly, and 항공날씨 every 2 months. Most recently, 셀리온 스마트 BT was updated on October 8, 2026 and 항공날씨 on October 13, 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.*