Magnetology vs Solar Activity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Magnetology
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.
- Geomagnetic storm forecasting
- Earth's geomagnetic field monitoring
- Health impact awareness
- Kp index tracking
- Solar activity influence explanation
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«Magnetology» is an application which permits one to watch the forecast of geomagnetic storms and the state of Earth´s geomagnetic field. WHY IS IT SO IMPORTANT? Geomagnetic storms adversely affect the health of humans. They can cause aches, dizziness, rapid heart rate, and abnormal blood pressure. People with abnormal conditions of the blood and of the cardiovascular and autonomic nervous systems are particularly susceptible to the influence of geomagnetic storms. The degree of magnetic storms’ influence on a particular person depends on many factors, including health status, stress, physical and emotional fatigue, natural predisposition. Not only can geomagnetic storms have a negative impact on humans, but also on communications, navigation, and power. By taking into account the forecast of geomagnetic storms, you can plan difficult decisions, avoid high physical stress, and protect yourself from negative consequences. Our application will help you with this. ABOUT THE NATURE OF THE GEOMAGNETIC STORMS The Earth's geomagnetic field changes occur under the influence of the Sun. The intensity of the impact is not constant and depends on the ongoing processes on the solar surface. The strength of geomatic field disturbances is characterized by the value of Kp index. The Kp index can be assigned values from 0 to 9, where 0 is the absence of disturbances and 9 represents extremely strong perturbations of the earth´s geomagnetic field. Disturbances with a Kp index of 5 and above are called storms. The number of geomagnetic storms per year can reach 50! ACKNOWLEDGMENTS - David Howell for English localization; - Johan Milani for French localization. * The app uses data of National Oceanic and Atmospheric Administration.
Solar Activity
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.
- Magnetic storm forecast
- Kp index forecast (3-27 days)
- Aurora borealis predictions
- Sunspot tracking
- Solar wind monitoring
- Latest SOHO/SDO images & videos
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Monitor solar activity. Get a solar storm forecast for the next 3-27 days and view the latest images and videos from SOHO/SDO. Also includes: - magnetic storm forecast - Kp index forecast for 3/27 days - aurora borealis - sunspots - solar wind
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Magnetology | Solar Activity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (82 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 79.7% of reviews — better | 25.0% of reviews |
| Number of ratings | 82 — better | 1 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Vasiliy Kozlov | Pavel Koyushev |
Customer experience
Magnetology
Solar Activity
In-app purchases
Magnetology
- Turn off ads$0.99
Solar Activity
No in-app purchases








