RRA(SWTIS) vs KP Forecast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RRA(SWTIS)
This app provides real-time space weather data, forecasts, and alerts. It monitors solar activity and its potential effects on Earth, including impacts on aviation, satellites, and power grids.
- Real-time space weather monitoring
- 3-day space weather forecast
- Forecasting models and observation data
- Space weather effects analysis
- Space weather news and announcements
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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
KP Forecast
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Aurora Visibility is the easiest way to check if you can see the aurora tonight. [Key Features] - Visibility Score Our unique score combines KP index (geomagnetic activity) and cloud cover to show aurora visibility in 4 levels. - 24-Hour Forecast View visibility predictions for the next 24 hours in a simple graph. Find the optimal viewing window at a glance. - Best Time Alerts Automatically calculates the best viewing time tonight based on darkness and conditions. - Aurora Map Check aurora activity at your current location on an interactive map. - Weather Info Real-time cloud cover and weather conditions to help you plan around clear skies. [Data Sources] - Aurora data: NOAA Space Weather Prediction Center - Weather data: Open-Meteo
Screenshots
Verdict
The clearest difference is in-app purchases: RRA(SWTIS) at none against KP Forecast's 2. RRA(SWTIS) also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. KP Forecast sells 2 in-app purchases, starting at $4.99 per month. RRA(SWTIS) asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 29, 2026 and October 14, 2026 respectively.
| Parameter | RRA(SWTIS) | KP Forecast |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 20 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | 국립전파연구원 | kota tada |
In-app purchases
RRA(SWTIS)
No in-app purchases
KP Forecast
- Premium (1 month)7 Days trial$4.991 Month
- Premium (1 year)14 Days trial$49.991 Year
