# RRA(SWTIS)

> Space weather monitoring, forecasting, and alerts from the Korea Space Weather Center. (iPhone/iPad app by 국립전파연구원.)

- Source: https://appshunter.io/ios/app/rraswtis/id647086467 (this page in markdown: same URL + `.md`)
- Developer: [국립전파연구원](https://appshunter.io/developer/647086470)
- Category: Weather, Lifestyle
- Price: Free
- Rating: 5.00/5 from 5 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 20 MB
- Languages: American English, Korean
- Released: 2013-05-14
- Data updated: 2026-08-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rraswtis/id647086467/reviews.md

## What is RRA(SWTIS)?

What is the Solar flare?
What's going on around the Sun and the Earth ?
So, the KSWC finally developed this space weather mobile APP.
It is expected that this APP is a portal site of the space weather, and provides the observation data, forecasting models and SWx monitors in real time. 
The KSWC was formally established as such in 2011, and 14th member of ISES(International Space Environment Service).
The KSWC has dreamed of "the safety Korea without space weather disaster" by accurate forecasts and prompt alerts.

The main features
1. Space weather now
2. 3-day forecast of space weather
3. forecasting models and observation data
4. Space weather effects(Aviation, satellites, GNSS, Power Grids, Communications)
5. NEWS and announcement of of KSWC
 
The KSWC(Korea Space Weather Center) of RRA(Radio Research Agency)
http://www.spaceweather.kasa.go.kr

E-mail
spaceweather@korea.kr

## Key features

- Real-time space weather monitoring
- 3-day space weather forecast
- Forecasting models and observation data
- Space weather effects analysis
- Space weather news and announcements

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/rraswtis/id647086467/reviews.md

### 5/5 — 유용한 정보가 많네요

*2020-08-20*

우주전파환경 관련 정보를 홈페이지에 들어가지 않고도 대부분 확인할 수 있어 유용합니다.

**Developer response:** 이용해주셔서 감사합니다.

### 5/5 — 신기하네..

*2020-07-24*

이런 앱도 있군요..
도움되실 분들 많겠는데요??

**Developer response:** 이용해주셔서 감사합니다.

### 5/5 — Most In-Depth Space Weather App

*2019-04-07*

I love this app because it’s so easy to use and for the fact that it provides so much information. It has all the information that one needs to be able to keep up with solar activity! The developers have hit it out of the park with this one!

### 5/5 — Simple & easy to navigate

*2016-06-30*

I'm a space weather scientist and like this app for its simplicity and the ease of navigation. I also like the fact that I can see ENLIL model handily, which would be a cool thing to watch for general public as well.

### 1/5 — 아이폰,아이패드 호환안됨

*2016-03-09*

주위에 아이폰 아이패드 안드로이드로 다운로드 했는데 아이폰은 실행이 안되구요
아이패드는 검색이 안되고 안드로이드만 정상적으로 실행이 됩니다
왜그럴까요? 확인좀 해주세요

### 5/5 — Excellent FREE Solar Monitoring

*2016-02-11*

This FREE Solar Monitoring app is developed by [South] Korean Space Weather agency. It provides current (sometimes also going back 48 hours) data from our star. Not only does it provide tabulated data from the various global solar labs it also, very nicely, provides their latest videos. This is a HUGE plus.
If there is a problem it is the slowness of going from one video back to another screen within the app (at least on my iPh6sPlus device). Patience is key here.

Caveat: this, like most solar monitoring apps, is for those astronomers (amateur and professional) who can reasonably interpret the data provided. It will give you an idea if your area could see the Aurora, for example, but you must know how to interpret the data. It will not molly-cuddle interpretations. It is not designed for the wannabe who has not studied our parent star, at least a little bit.
Enjoy.

### 5/5 — 좋아요

*2015-07-13*

저도 개발자 분이 너무 궁금해요~ nasa 에서 제공하는 앱보다 100배 나은듯~~~

## Frequently asked questions about RRA(SWTIS)

### What is RRA(SWTIS)?

RRA(SWTIS) is a mobile application developed by the Korea Space Weather Center (KSWC) to provide real-time space weather data, forecasts, and alerts. It aims to inform users about solar activity and its potential effects.

### What kind of space weather information does RRA(SWTIS) provide?

The app offers real-time monitoring of space weather conditions, a 3-day forecast, access to forecasting models and observation data, and analysis of space weather effects on aviation, satellites, GNSS, power grids, and communications.

### Is RRA(SWTIS) free to use?

Yes, RRA(SWTIS) is available for free. It does not have any associated costs for download or usage.

### Does RRA(SWTIS) have ads?

No, RRA(SWTIS) does not contain advertisements. It is an ad-free application.

### What devices support RRA(SWTIS)?

RRA(SWTIS) is supported on iPhone and iPod devices. It is not currently available for Android or other platforms.

### How often is RRA(SWTIS) updated?

The app was last updated on February 24, 2026, indicating a commitment to maintaining and improving its features and data accuracy.

### What is the age rating for RRA(SWTIS)?

RRA(SWTIS) has an age rating of 4+, making it suitable for a wide range of users interested in space weather.

### Where can I find more information about the Korea Space Weather Center?

You can visit the KSWC's official website at http://www.spaceweather.kasa.go.kr or contact them via email at spaceweather@korea.kr for further inquiries.

## Version history (last 5 releases)

### 2.0.32 — 2026-05-19

Improve operation stability

### 2.0.31 — 2026-02-24

Fix data information time issues

### 2.0.30 — 2026-02-23

Improve model image and graph speed

### 2.0.28 — 2025-03-18

Modifying to Logo Change

### 2.0.27 — 2024-06-17

Modifying app description versions and simple bug fixes

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*