# Solar Activity vs SpaceWeatherX

The clearest difference is in-app purchases: Solar Activity at none against SpaceWeatherX's 1. SpaceWeatherX's advantage is update cadence (every 10 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SpaceWeatherX sells 1 in-app purchase, starting at $8.99 per year. Solar Activity asks for nothing beyond the download.

Solar Activity ships an update every 3 months, SpaceWeatherX every 10 days. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Solar Activity | SpaceWeatherX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/solar-activity/id1460144397/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 33 MB | 47 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Koyushev](https://appshunter.io/developer/1257728721) | [Ivan Tokic](https://appshunter.io/developer/6790472604) |

## What reviewers say

### Solar Activity

[App page](https://appshunter.io/ios/app/solar-activity/id1460144397)

Track solar activity with a forecast for magnetic storms up to 27 days in advance. View the latest images and videos of the sun, and monitor key metrics like the Kp index and sunspots.

**Highlights:** Magnetic storm forecast, Kp index forecast (3-27 days), Aurora borealis predictions, Sunspot tracking, Solar wind monitoring, Latest SOHO/SDO images & videos

**Features:** macOS Compatibility

**In-app purchases:** none


### SpaceWeatherX

[App page](https://appshunter.io/ios/app/spaceweatherx-aurora-and-solar/id6807881639)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpaceWeatherX Plus Annual | $8.99 | per year |


## Frequently asked questions

### Is Solar Activity free?

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

### Is SpaceWeatherX free?

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

### Do Solar Activity or SpaceWeatherX have ads?

Both Solar Activity and SpaceWeatherX show ads.

### Which is updated more often, Solar Activity or SpaceWeatherX?

Solar Activity ships an update every 3 months, and SpaceWeatherX every 10 days. Most recently, Solar Activity was updated on October 13, 2026 and SpaceWeatherX on October 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*