Geomagnetic Observatory
Monitor geomagnetic activity
Free
Monitor the geomagnetic field!
Geomagnetic plots live data from the world's magnetic observatories on Apple devices. Pick a station and monitor Earth's magnetic field: both its total intensity and vector components. It downloads only the slice of data you are looking at, and only the minutes it doesn't already have, so it stays quick and keeps working offline once data is cached. It is free and open source, and draws on the INTERMAGNET network of observatories.
Ratings & Reviews
- add watchOS companion app
- Higher data density in medium and large widgets
The developer, Twarge LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Twarge LLC
- Size
- 3.8 MB
- Category
- Reference
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Twarge LLC