RRA(SWTIS) vs OceanTides Pro
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
OceanTides Pro
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OceanTides Pro brings professional tide predictions to your iPhone and iPad. TIDES • Daily and weekly tide charts with high and low water predictions • Toggle between feet and meters • Browse thousands of stations worldwide, or use your current location MOON • Moon phases and illumination percentage • Moonrise and moonset times • Upcoming moon phase calendar SUN • Sunrise and sunset times • Daylight duration and solar noon Everything works offline — no account required. Station data is stored locally so tide predictions are available anywhere, anytime.
Screenshots
Verdict
The clearest difference is update cadence: OceanTides Pro at daily against RRA(SWTIS)'s every 4 months. RRA(SWTIS)'s advantage is iOS requirement (14.0 vs 26.0). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
RRA(SWTIS) ships an update every 4 months, OceanTides Pro daily. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.
| Parameter | RRA(SWTIS) | OceanTides Pro |
|---|---|---|
| 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 | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 14.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 20 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | 국립전파연구원 | Julien Nicolas |
In-app purchases
RRA(SWTIS)
No in-app purchases
OceanTides Pro
No in-app purchases









