# Magnetology vs Solar Activity

The clearest difference is review sentiment: Magnetology at 80% against Solar Activity's 25%. Magnetology also leads on rating (4.6 vs 1.0) and ratings volume (82 vs 1). Solar Activity's advantage is in-app purchases (none vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Magnetology sells 1 one-off in-app purchase. Solar Activity asks for nothing beyond the download.

Magnetology holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Magnetology has 82 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Magnetology's written reviews are positive against 25% of Solar Activity's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Magnetology | Solar Activity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (82 ratings)](https://appshunter.io/ios/app/magnetology/id789651124/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/solar-activity/id1460144397/reviews) |
| Number of ratings | **82** | 1 |
| Positive reviews | **79.7% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 45 MB | 33 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vasiliy Kozlov](https://appshunter.io/developer/651944109) | [Pavel Koyushev](https://appshunter.io/developer/1257728721) |

## What reviewers say

### Magnetology

[App page](https://appshunter.io/ios/app/magnetology/id789651124)

Monitor geomagnetic storms and Earth's magnetic field. Understand how these events can impact health, communications, and navigation. Plan your activities and protect yourself from potential negative effects.

**Highlights:** Geomagnetic storm forecasting, Earth's geomagnetic field monitoring, Health impact awareness, Kp index tracking, Solar activity influence explanation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Turn off ads | $0.99 | one-time |


### 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


## Frequently asked questions

### Is Magnetology free?

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

### Is Solar Activity free?

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

### Which has better reviews, Magnetology or Solar Activity?

Magnetology is rated higher. Magnetology averages 4.6 out of 5 from 82 ratings, while Solar Activity averages 1.0 from 1 ratings.

### Do Magnetology or Solar Activity have ads?

Both Magnetology and Solar Activity show ads.

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

Magnetology ships an update every 3 months, and Solar Activity every 3 months. Most recently, Magnetology was updated on October 23, 2026 and Solar Activity on October 25, 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.*