Visualize real-time geomagnetic field data from global observatories. Monitor total intensity and vector components of Earth's magnetic field. The app efficiently caches data for offline use and is free and open-source.

250+ iOS apps curated and reviewed
Geomagnetic Observatory is the household name in geomagnetic observatory, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (1) | No | No | Sep 2026 | ||
| 2 | Free | 4.0★ (47K) | No | No | Sep 2026 | ||
| 3 | Free | 3.8★ (4) | No | No | Sep 2026 | ||
| 4 | Free | 4.7★ (69K) | Yes | No | Sep 2026 | ||
| 5 | Free | 5.0★ (7) | Yes | No | Sep 2026 | ||
| 6 | Free | 4.3★ (24) | No | No | Sep 2026 | ||
| 7 | Free | 5.0★ (1) | No | Yes | Sep 2026 | ||
| 8 | Free | 4.3★ (1.1K) | Yes | No | Sep 2026 |

Visualize real-time geomagnetic field data from global observatories. Monitor total intensity and vector components of Earth's magnetic field. The app efficiently caches data for offline use and is free and open-source.






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This app displays the current and forecasted geomagnetic field conditions using the Kp-index. It helps users understand disturbances and their potential impact on power grids, spacecraft, radio signals, and aurora visibility.