# ROMES Probe vs Metal Detector. Magnetometer

The clearest difference is ads: ROMES Probe at none against Metal Detector. Magnetometer's shown. On price, update cadence, 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.

ROMES Probe ships an update every 4 months, Metal Detector. Magnetometer every 3 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ROMES Probe | Metal Detector. Magnetometer |
| --- | --- | --- |
| 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 | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | — | Ad-supported |
| Size | 1 MB | 1 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Rohde & Schwarz GmbH & Co. KG](https://appshunter.io/developer/364229795) | [Alejandro Cordon](https://appshunter.io/developer/553178609) |

## What reviewers say

### ROMES Probe

[App page](https://appshunter.io/ios/app/romes-probe/id6445962802)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ROMES Probe free?

ROMES Probe is free to download, with no in-app purchases.

### Is Metal Detector. Magnetometer free?

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

### Do ROMES Probe or Metal Detector. Magnetometer have ads?

Metal Detector. Magnetometer shows ads; ROMES Probe does not.

### Which is updated more often, ROMES Probe or Metal Detector. Magnetometer?

ROMES Probe ships an update every 4 months, and Metal Detector. Magnetometer every 3 months. Most recently, ROMES Probe was updated on October 19, 2026 and Metal Detector. Magnetometer on October 25, 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.*