Calculate magnetic fields from electric currents with four distinct modes. Solve for any variable, visualize with interactive diagrams, and utilize flexible unit support. Works offline for convenience.





249+ iOS apps curated and reviewed
The best magnetic field calculator apps on iPhone average 4.1★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | May 2026 | |
| 2 | $2.99 | 4.0★ (1) | No | No | May 2026 | |
| 3 | $0.99 | — | No | No | Aug 2026 | |
| 4 | $2.99 | — | No | No | May 2026 | |
| 5 | Free | — | No | No | May 2026 | |
| 6 | Free | 4.6★ (424) | Yes | Yes | Aug 2026 | |
| 7 | Free | 5.0★ (7) | No | Yes | Aug 2026 | |
| 8 | Free | — | Yes | Yes | Jun 2026 |











Calculate magnetic fields from electric currents with four distinct modes. Solve for any variable, visualize with interactive diagrams, and utilize flexible unit support. Works offline for convenience.

This utility app detects and displays nearby magnetic fields using your device's compass. It can also function as a basic metal detector by measuring magnetic field strength.






This app uses your device's magnetometer to detect magnetic and electromagnetic fields. It helps locate metal objects, hidden wires, pipes, and even wood studs behind walls. Get real-time readings and alerts to explore your surroundings.


This app transforms your iPhone into a precise scientific instrument for measuring, visualizing, and recording magnetic fields. Explore magnetic field vectors, magnitudes, and compass headings with real-time charts and digital readouts. Ideal for educational experiments, lab work, or curious exploration.




Calculate magnetic force, permeance coefficient, and demagnetizing factor for various magnet shapes. Input magnet dimensions and grade or Br value to get results based on computer simulation data.




This utility app uses your device's magnetometer to measure magnetic fields, detect EMF, and visualize magnetic data in real-time. It can help identify magnetic metal objects by sensing disturbances in the surrounding magnetic field and offers customizable alerts.


This app uses your device's magnetic sensor to analyze surrounding magnetic fields in real-time. It offers graphical, time-based, and frequency analysis modes for various applications, including metal detection and electromagnetic field investigation.


This physics calculator helps you quickly determine the voltage induced in a closed circuit. It provides formulas for reference and supports various units for precise calculations. Results can be easily copied to other applications.


This tool measures magnetic field strength and magnetization of materials. It can also function as a metal detector.


Visualize magnetic fields in real-time with precision charts and monitor X, Y, Z axis readings. Ideal for scientific research, education, and field work, this app offers professional-grade accuracy and an intuitive interface for easy data interpretation.






This application measures magnetic field strength, responding to both static and alternating fields. It helps users make a qualitative assessment of magnetic field exposure from various sources.


This tool uses your phone's magnetic sensor to detect metal objects and measure magnetic field strength. It provides real-time readings, visual and audio alerts for increased fields, and a history graph to track changes.

