# RRA(SWTIS) vs Nice Days!

The clearest difference is ads: RRA(SWTIS) at none against Nice Days!'s shown. RRA(SWTIS) also leads on monetization model (free vs ad-supported). Nice Days!'s advantage is update cadence (fortnightly vs every 4 months) and review sentiment (100% vs 86%). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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, Nice Days! fortnightly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | RRA(SWTIS) | Nice Days! |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Ad-supported |
| Size | 20 MB | 11 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [국립전파연구원](https://appshunter.io/developer/647086470) | [Murat Tunca](https://appshunter.io/developer/1614445322) |

## 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


### Nice Days!

[App page](https://appshunter.io/ios/app/nice-days-weather/id6452432500)

Get real-time weather information and forecasts for any location worldwide. Plan your day, travels, and activities with detailed weather data and timely alerts to stay prepared for changing conditions.

**Highlights:** Global weather forecast, Real-time weather information, Detailed weather parameters, Personalized watchlist, Real-time weather alerts, Hourly and daily forecasts

**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 Nice Days! free?

Nice Days! is free to download, with no in-app purchases.

### Do RRA(SWTIS) or Nice Days! have ads?

Nice Days! shows ads; RRA(SWTIS) does not.

### Which is updated more often, RRA(SWTIS) or Nice Days!?

RRA(SWTIS) ships an update every 4 months, and Nice Days! fortnightly. Most recently, RRA(SWTIS) was updated on November 1, 2026 and Nice Days! on November 3, 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.*