# RRA(SWTIS) vs Dropify Weather

The clearest difference is in-app purchases: RRA(SWTIS) at none against Dropify Weather's 3. Dropify Weather's advantage is update cadence (every 3 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Dropify Weather sells 3 in-app purchases, starting at $2.99 per 7 days. RRA(SWTIS) asks for nothing beyond the download.

RRA(SWTIS) ships an update every 4 months, Dropify Weather every 3 days. The most recent releases landed on October 8, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | RRA(SWTIS) | Dropify Weather |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 20 MB | 42 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [국립전파연구원](https://appshunter.io/developer/647086470) | [Michael Raymond](https://appshunter.io/developer/1878012924) |

## 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


### Dropify Weather

[App page](https://appshunter.io/ios/app/dropify-weather/id6759411821)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly | $26.99 | per year |


## Frequently asked questions

### Is RRA(SWTIS) free?

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

### Is Dropify Weather free?

Dropify Weather is free to download, with in-app purchases available.

### Do RRA(SWTIS) or Dropify Weather have ads?

Neither RRA(SWTIS) nor Dropify Weather shows ads.

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

RRA(SWTIS) ships an update every 4 months, and Dropify Weather every 3 days. Most recently, RRA(SWTIS) was updated on October 8, 2026 and Dropify Weather on September 27, 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.*