# Metal Detector. Magnetometer vs Magnetic Sensor

The clearest difference is update cadence: Magnetic Sensor at fortnightly against Metal Detector. Magnetometer's every 3 months. Magnetic Sensor also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Metal Detector. Magnetometer ships an update every 3 months, Magnetic Sensor fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Metal Detector. Magnetometer | Magnetic Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/metal-detector-magnetometer/id6761862180/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 1 MB | 25 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alejandro Cordon](https://appshunter.io/developer/553178609) | [Seonggon Sim](https://appshunter.io/developer/1565259950) |

## What reviewers say

### Metal Detector. Magnetometer

[App page](https://appshunter.io/ios/app/metal-detector-magnetometer/id6761862180)

This utility app turns your device into a magnetic field detector. It measures magnetic fields in real-time, providing detailed 3-axis data and color-coded alerts for metal detection. Useful for finding hidden objects or for educational purposes.

**Highlights:** Real-time magnetic field measurement, 3-axis magnetic field breakdown, Color-coded metal detection alerts, Manual sensor calibration, Geomagnetic rotation vector display, Magnitude history tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Magnetic Sensor

[App page](https://appshunter.io/ios/app/magnetic-sensor/id6764468454)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Metal Detector. Magnetometer free?

Metal Detector. Magnetometer is free to download, with no in-app purchases.

### Is Magnetic Sensor free?

Magnetic Sensor is free to download, with no in-app purchases.

### Do Metal Detector. Magnetometer or Magnetic Sensor have ads?

Both Metal Detector. Magnetometer and Magnetic Sensor show ads.

### Which is updated more often, Metal Detector. Magnetometer or Magnetic Sensor?

Metal Detector. Magnetometer ships an update every 3 months, and Magnetic Sensor fortnightly. Most recently, Metal Detector. Magnetometer was updated on October 31, 2026 and Magnetic Sensor on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*