# Magnetology

> Forecasts geomagnetic storms and Earth's magnetic field state. (iPhone/iPad app by Vasiliy Kozlov.)

- Source: https://appshunter.io/ios/app/magnetology/id789651124 (this page in markdown: same URL + `.md`)
- Developer: [Vasiliy Kozlov](https://appshunter.io/developer/651944109)
- Category: Weather, Health & Fitness
- Price: Free with in-app purchases
- Rating: 4.60/5 from 81 App Store ratings · 202 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 45 MB
- Languages: Russian, American English, French (France)
- Released: 2014-01-04
- Data updated: 2026-09-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/magnetology/id789651124/reviews.md

## What is Magnetology?

«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.

## Key features

- Geomagnetic storm forecasting
- Earth's geomagnetic field monitoring
- Health impact awareness
- Kp index tracking
- Solar activity influence explanation

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (10 of 202)

All indexed reviews: https://appshunter.io/ios/app/magnetology/id789651124/reviews.md

### 2/5 — Магнитный фон

*2026-08-13*

Точность и оперативность данных хромает!

### 1/5 — Удалил

*2026-06-19*

Не работает

### 1/5 — Не работает

*2026-04-18*

Часто, данные недоступны. Не отправляет PUSH-уведомления о достижении настроенного порога Kp-индекса.

### 5/5 — Very nice and useful

*2026-02-04, version 1.9.9*

Useful *****

### 5/5 — Inspire 1

*2026-01-16*

Love it. It works true me. The app out there for flying.

### 4/5 — Lisibilite horaires

*2025-08-22*

Des barres verticales fines aideraient à reperer facilement les heures de transitions. Sinon une option de presentation en tableau horaire kp. Sinon l heure en etiquette directement àproximite de la transition.

### 5/5 — Simple, effective and accurate

*2025-08-10*

I’ve been using this app for over ten years. I can only recommend it and deeply thank the creator!

### 5/5 — Все отлично!

*2025-08-09*

Ставлю 5 баллов в данный момент!!
Ранее приложение вылетало, не стабильная работа..
А так все супер!

### 4/5 — Issues with up to date info

*2025-07-24*

recently the app doesn’t update. Most of the time I get a message “fail to receive data”

### 5/5 — Разработчик вернулся!

*2025-07-12*

Ну супер! Теперь можно пользоваться…

## Frequently asked questions about Magnetology

### What does Magnetology do?

Magnetology allows users to view forecasts of geomagnetic storms and the current state of Earth's geomagnetic field. It explains how these storms, influenced by solar activity, can affect human health, communications, and navigation systems.

### How does Magnetology help users?

By providing forecasts of geomagnetic storms, the app helps users plan important decisions, avoid high physical stress, and take measures to protect themselves from potential negative health and technological consequences.

### What is the Kp index?

The Kp index is a measure of the strength of disturbances in the Earth's geomagnetic field, ranging from 0 to 9. Values of 5 and above indicate geomagnetic storms, with higher numbers signifying more intense perturbations.

### Is Magnetology free to use?

The application is free to download and use, but it offers in-app purchases. These purchases may unlock additional features or remove advertisements, providing an enhanced user experience.

### Who is most affected by geomagnetic storms?

People with pre-existing conditions related to blood, cardiovascular, or autonomic nervous systems are particularly susceptible to the effects of geomagnetic storms. However, individual susceptibility also depends on factors like stress, fatigue, and natural predisposition.

## Version history (last 5 releases)

### 1.9.9 — 2025-09-24

Improved stability and performance. Added unobtrusive ads to support the app’s development.

### 1.9.7 — 2025-07-05

Support for current devices

### 1.9.5 — 2017-01-26

This app has been updated by Apple to display the Apple Watch app icon.

Stabiliy improvements and better iOS 10 compatibility.

### 1.9.3 — 2016-01-15

Added an option of forecasts history.

### 1.9.2 — 2015-07-17

Fixed bug that cause displaying old data.

French localization.
Thank Johan Milani for French translation.

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## More apps by Vasiliy Kozlov

- [Секреты судьбы. Нумерология](https://appshunter.io/ios/app/id757913537)
- [Обучтение - научиться читать очень просто!](https://appshunter.io/ios/app/id910437428)
- [Кино Наоборот: Угадай фильм](https://appshunter.io/ios/app/id6760938633)
- [Tarifmometr](https://appshunter.io/ios/app/tarifmometr/id6761688041)
- [Beat Bob](https://appshunter.io/ios/app/beat-bob/id6794845376)

All apps by Vasiliy Kozlov: https://appshunter.io/developer/651944109

## Related topics

[magnetology](https://appshunter.io/ios/topics/magnetology)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*