# Magnetic Storms — Follow the solar activity

> Real-time solar activity and Earth's magnetic field monitoring. (iPhone/iPad app by Andre Molina.)

- Source: https://appshunter.io/ios/app/magnetic-storms/id575956246 (this page in markdown: same URL + `.md`)
- Developer: [Andre Molina](https://appshunter.io/developer/503002385)
- Category: Utilities, Weather
- Price: Free
- Rating: 4.30/5 from 19 App Store ratings · 92 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.4 · 37 MB
- Languages: American English
- Released: 2012-11-11
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/magnetic-storms/id575956246/reviews.md

## What is Magnetic Storms?

The Magnetic Storms application was originally developed to allow monitoring of the Earth's magnetic field in near real time, using data from GOES satellites that constantly monitor solar activity and a set of magnetic stations distributed around the Earth. With the improvement of the application due to the huge number of users and the availability of new parameters related to the Sun and Space Weather by the space agencies, lots of other information was added and they are shown in a simple and intuitive way.

The main parameters presented are the Kp Index, the A Index, the instantaneous speed of the solar wind, the number of class C, M and X solar flares observed in X-rays, in addition to the flux of protons and electrons, flux of X-rays and magnetic field measurements observed by GOES-16. With an analysis of this information it is possible to anticipate sudden changes in the Earth's magnetic field at ground level and the occurrence of aurora with some advance.

An ideal application for anyone who wants to monitor solar activity and its implications on Earth, such as problems in the transmission of radio and TV waves, blackouts in electricity transformer stations, auroras, magnetic storms. It is the perfect app for anyone interested in Space Weather in general, and is available in English, Portuguese, Spanish, Italian and French.

As a way of keeping the app distributed for free and constantly updated, we kindly ask you to rate the app ("stars") and write a brief description of why you use it and (we hope you) enjoy it. Criticism and suggestions are always welcome at mikebm10.appledeveloper@gmail.com.

NOTE: the parameters shown in the application are obtained from the research entities responsible for their collection and processing, and depend on the availability and access to the electronic servers of these entities. Any connection speed problems with the servers or temporary unavailability of information by those institutions can affect the functioning of the application, and are beyond the control of the developers. Problems should be reported by email mikebm10.appledeveloper@gmail.com, with a description of the observed effects. Please do not assign a low rating in the evaluation of the application for possible failures in the servers, which are not our responsibility. An email message will be promptly answered and possible measures will be taken. We thank you for your understanding.

## Key features

- Real-time magnetic field monitoring
- Solar activity tracking
- Kp and A Index data
- Solar wind speed
- Solar flare detection
- Proton and electron flux
- Aurora prediction

## Recent user reviews (10 of 92)

All indexed reviews: https://appshunter.io/ios/app/magnetic-storms/id575956246/reviews.md

### 3/5 — App seems to quit working

*2025-01-19, version 1.3.1*

I have used this app for a number of years.  It appeared to work great.  Recently it seems to just quit updating.  I have to delete and reload.

### 5/5 — Great app

*2024-04-19*

This solar cycle is coming to the maximum, and we will have lots of magnetic storms, for sure. This app is perfect to monitorate this activity. Thanks a lot!

### 2/5 — Old data

*2024-02-03, version 1.3.1*

Today is the third but the chart was last updated on the first. It takes 8 hours for a flare to arrive at earth. Not a good alert app.

### 1/5 — Anúncios???

*2023-06-02, version 1.3.1*

O app é legal e cumpre o que promete, porém, agora está com anúncios… Porque??? 
Não seria melhor colocar disponível uma versão paga sem anúncios???

### 1/5 — Rechtspopulistische Werbung …

*2022-10-07, version 1.3*

… geht ja wohl gar nicht … sehr schade, daß eigentlich  interessanter wissenschaftlicher Output für derlei Schmarrn instrumentalisiert wird. Bleibt es, wird die App gelöscht.

### 5/5 — einfach, aber informiert

*2022-09-24, version 1.3*

wer app’s nach dem aussehen bewertet, sollte sich fragen wieso er so eine app möchte! wegen der informationen! in der hinsicht 5 sterne. liefert valide daten, zeigt verlauf und das reicht mir. absolute empfehlung.

### 5/5 — I’m disenchanted

*2021-08-06, version 1.2.9*

I’m looking at news on tv and they are warning of a geomagnetic storm that will likely disrupt communications. This site says nothing I’m wanting to have trust in your site and I know there have been problems , please continue to perfect the site . It’s so important! Thanks Charles Underwood

  Thanks for your response Andre.  I should have known that there would be some sensationalism on this subject by other media to get attention. 
 Now I am confident in you and NOAA clear this up and report the facts .    Thanks and keep up the good work !   CU

### 5/5 — Cumpre com precisão o que promete

*2020-06-05, version 1.2.9*

Saber que o índice geomagnético atesta a informática e as telecomunicações e ter esse App para saber quando o sol tá atrapalhando a sua vida não tem preço !
Estão de parabéns.

### 5/5 — Great little app

*2020-06-02, version 1.2.9*

i use this all the time checking for Kp index information and solar flare observations.

stopped working recently but very quick response from developer and then quick fix to get it working again; many thanks!

### 5/5 — Good for student research

*2020-06-02, version 1.2.9*

Used in classroom for solar assignments and very dependable.
App creator is also helpful and works to answer questions

## Frequently asked questions about Magnetic Storms

### What does the Magnetic Storms app do?

The app monitors Earth's magnetic field and solar activity in near real-time. It uses data from GOES satellites and ground magnetic stations to display parameters like the Kp Index, solar wind speed, and solar flares. This information can help anticipate changes in the Earth's magnetic field and the occurrence of auroras.

### What are the main features of Magnetic Storms?

Key features include monitoring the Kp Index, A Index, instantaneous solar wind speed, and the number of C, M, and X class solar flares. It also shows proton and electron flux, X-ray flux, and magnetic field measurements from GOES-16. The app aims to provide this information in a simple and intuitive way.

### Is Magnetic Storms free to use?

Yes, the app is distributed for free. The developers kindly ask users to rate the app and provide feedback to help keep it updated. While the app is free, it does display advertisements.

### What kind of information can I expect from this app?

You can expect data related to space weather, including the Kp Index, A Index, solar wind speed, solar flares (C, M, X class), and proton/electron flux. It also provides magnetic field measurements. This data helps in understanding and anticipating phenomena like magnetic storms and auroras.

### Who would benefit from using Magnetic Storms?

This application is ideal for anyone interested in monitoring solar activity and its potential impacts on Earth. This includes individuals concerned about radio and TV wave transmission, potential blackouts in electricity grids, auroras, and magnetic storms. It's also perfect for those generally interested in space weather.

## Version history (last 5 releases)

### 1.3.1 — 2023-03-29

We've fixed some bugs and make some minor adjustments to make the app even faster and reliable.

### 1.3 — 2022-05-19

In this version we use the following solar activity indicators, presented in a simple and illustrative graphic way:
- Kp index of the last three days
- A index of the last three days
- solar wind speed, almost real-time
- number of category C, M and X flares from the previous 3 days, observed in X-rays
- X-ray flux with passband between 0.1 and 0.8 nm observed by GOES-16
- proton flux with energy greater than 10 MeV observed by GOES-16
- proton flux with energy greater than 50 MeV observed by GOES-16
- proton flux with energy greater than 100 MeV observed by GOES-16
- electron flow with energy greater than 2 MeV observed by GOES-16
- Hp magnetic field observed by GOES-16
- Total magnetic field (Htot) observed by GOES-16
- summary chart of the main elements that characterize solar activity, in real time

### 1.2.9 — 2020-06-02

Prevent a crash caused by particles data not available from NGDC. Sorry about that, but the app depends upon this data, and the organization has stopped to distribute the data without warning or alternative.

### 1.2.8 — 2018-01-18

We are bringing you a much better Magnetic Storms app!
Some bug fixes, some improvements, and your favorite space weather app is ready to go!
Thank you very much for supporting our app! Please write a review after downloading this new version, as the old ones are not valid for new releases, and this is VERY important to help us to maintain the app working.

### 1.2.7 — 2017-01-09

Minor bug fixes; we also added a new reference link.

We are ready for iOS 10. Magnetic Storms is always being improved to show you the most updated solar data and Earth magnetic activity. In this update : minor bugs corrections and some broken links were fixed. And we continue to be the topmost solar activity monitor in the planet, thanks to you! :)

Even if you already has kindly written a review, please take some seconds to update it, since the reviews are valid only for a specific version of the app. And your reviews are very valuable to us, you can be sure.

If you have any suggestion or concern about the app, please contact us using mikebm10.appledeveloper@gmail.com. We can not answer to suggestions posted in the reviews.

We wish all our users a very happy 2017, full of happiness and magnetic storms!

Best regards

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## More apps by Andre Molina

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All apps by Andre Molina: https://appshunter.io/developer/503002385

## Related topics

[magnetic storms](https://appshunter.io/ios/topics/magnetic-storms) · [ciboai](https://appshunter.io/ios/topics/ciboai) · [solar flare](https://appshunter.io/ios/topics/solar-flare) · [magnetology](https://appshunter.io/ios/topics/magnetology) · [solar flare alert](https://appshunter.io/ios/topics/solar-flare-alert) · [popular solar flares forecast tools](https://appshunter.io/ios/topics/popular-solar-flares-forecast-tools) · [cibao](https://appshunter.io/ios/topics/cibao) · [space weather](https://appshunter.io/ios/topics/space-weather) · [space weather live](https://appshunter.io/ios/topics/space-weather-live) · [agos in the field](https://appshunter.io/ios/topics/agos-in-the-field) · [solar activity](https://appshunter.io/ios/topics/solar-activity)

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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 2026-06-10.*