# RRA(SWTIS) vs 전남바다알리미

RRA(SWTIS) and 전남바다알리미 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, 전남바다알리미 every 2 months. The most recent releases landed on October 8, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | RRA(SWTIS) | 전남바다알리미 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/rraswtis/id647086467/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 20 MB | 17 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [국립전파연구원](https://appshunter.io/developer/647086470) | [전라남도해양수산기술원](https://appshunter.io/developer/1466965699) |

## What reviewers say

### RRA(SWTIS)

[App page](https://appshunter.io/ios/app/rraswtis/id647086467)

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.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 전남바다알리미

[App page](https://appshunter.io/ios/app/id1466965700)

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

**In-app purchases:** none


## Frequently asked questions

### Is RRA(SWTIS) free?

RRA(SWTIS) is free to download, with no in-app purchases.

### Is 전남바다알리미 free?

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

### Do RRA(SWTIS) or 전남바다알리미 have ads?

Neither RRA(SWTIS) nor 전남바다알리미 shows ads.

### Which is updated more often, RRA(SWTIS) or 전남바다알리미?

RRA(SWTIS) ships an update every 4 months, and 전남바다알리미 every 2 months. Most recently, RRA(SWTIS) was updated on October 8, 2026 and 전남바다알리미 on October 26, 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.*